Compound for organic electric element, organic electric element using same, and electronic device thereof

Abstract

The present invention provides: a compound represented by chemical formula 1; a method for recovering same; an organic electric element comprising a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode; and an electronic device comprising the organic electric element. By including the compound of chemical formula 1 in the organic material layer, the driving voltage of the organic electric element can be lowered, and the light emission efficiency and lifespan thereof can be improved.

Description

Compounds for organic electric devices, organic electric devices using the same, and electronic devices thereof

[0001] The present invention relates to a compound for an organic electric device, an organic electric device using the same, and an electronic device thereof.

[0002] Generally, organic light emitting diodes (OLEDs) are devices that convert electrical energy into light energy using organic materials. Organic electronic devices utilizing the organic light emitting diode (OLED) phenomenon typically have a structure comprising an anode, a cathode, and an organic layer between them. These organic layers are often multilayered, composed of different materials, to enhance the efficiency and stability of the device. For example, these layers may include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer.

[0003] The biggest issues with organic light-emitting diodes are their lifespan and efficiency, and as displays become larger in size, these efficiency and lifespan issues must be resolved.

[0004] Efficiency, lifespan, and operating voltage are interrelated. As efficiency increases, the operating voltage decreases relatively. As the operating voltage decreases, the crystallization of organic substances due to Joule heating generated during operation decreases, which results in a tendency for the lifespan to increase.

[0005] However, simply improving the organic layers cannot maximize efficiency. This is because long life and high efficiency can be achieved simultaneously only when the energy levels and T1 values ​​between each organic layer, as well as the material's inherent properties (mobility, interfacial properties, etc.) are optimally combined.

[0006] Therefore, in order to fully utilize the excellent characteristics of organic electronic devices, it is necessary to develop materials that form the organic layer within the device, especially the light-emitting auxiliary layer.

[0007] The purpose of the present invention is to provide a compound for an organic electric device that can lower the driving voltage of the device and improve the luminous efficiency and lifespan of the device, an organic electric device using the same, and an electronic device thereof.

[0008] In one aspect, the present invention provides a compound represented by the following chemical formula:

[0009]

[0010] In another aspect, the present invention provides an organic electric element and an electronic device thereof comprising a compound represented by the above chemical formula.

[0011] By using the compound according to an embodiment of the present invention as a material for an organic electric device, the driving voltage of the device can be lowered, and the luminous efficiency and lifespan can be improved.

[0012] Figures 1 to 3 are exemplary diagrams of organic light-emitting devices according to embodiments of the present invention.

[0013] [Explanation of symbols]

[0014] 100, 200, 300: Organic electroluminescent element 110: First electrode

[0015] 120: Hole injection layer 130: Hole transport layer

[0016] 140: Emitting layer 150: Electron transport layer

[0017] 160: Electron injection layer 170: Second electrode

[0018] 180: Light efficiency improvement layer 210: Buffer layer

[0019] 220: Light-emitting auxiliary layer 320: First hole injection layer

[0020] 330: First hole transport layer 340: First light-emitting layer

[0021] 350: First electron transport layer 360: First charge generation layer

[0022] 361: Second charge generation layer 420: Second hole injection layer

[0023] 430: Second hole transport layer 440: Second light-emitting layer

[0024] 450: Second electron transport layer CGL: Charge generation layer

[0025] ST1: First stack ST2: Second stack

[0026] The terms "aryl group," "arylene group," and "aromatic ring" used herein mean a hydrocarbon aromatic ring group, each having 6 to 60 carbon atoms unless otherwise specified, but is not limited thereto. In the present invention, the aryl group or arylene group includes a monocyclic ring, a polycyclic ring, a condensed ring, and the like.

[0027] As used herein, the term "fluorenyl group" means a substituted or unsubstituted fluorenyl group, and "fluorenylene group" means a substituted or unsubstituted fluorenylene group. The fluorenyl group or fluorenylene group used in the present invention includes a spiro compound formed by R and R' bonding to each other in the structure below, and also includes a compound in which adjacent R" bonds to each other to form a ring. The "substituted fluorenyl group" and the "substituted fluorenylene group" mean that at least one of R, R', and R" in the structure below is a substituent other than hydrogen, and the number of R" in the chemical formula below may be 1 to 8. In the present specification, regardless of the valence, a fluorenyl group, a fluorenylene group, etc. may be described as a fluorene group or fluorene.

[0028]

[0029] The term "spiro compound" as used herein has a "spiro linkage," which means a linkage formed by two rings sharing only one atom. The atom shared between the two rings is called a "spiro atom," and depending on the number of spiro atoms contained in a compound, these are called "monospiro-," "dicepiro-," and "trispiro-" compounds, respectively.

[0030] The term "heterocyclic group" used herein includes not only aromatic heterocycles such as "heteroaryl group" or "heteroarylene group" but also non-aromatic heterocycles, and unless otherwise stated means, but is not limited to, a ring having 2 to 60 carbon atoms each containing one or more heteroatoms. The term "heteroatom" used herein, unless otherwise stated, represents an element other than carbon, such as N, O, S, P, or Si, and may include a heteroatom group such as SO2, P=O, etc. instead of carbon forming the ring, as in the following compounds.

[0031]

[0032] In addition, a heterocyclic group includes a monocyclic ring, polycyclic ring, or condensed ring containing a heteroatom, and in the case of a condensed ring, if at least one of the condensed rings is a ring containing a heteroatom, it is defined as a heterocyclic ring. For example, a condensed ring in which a heterocyclic ring such as furan, dihydrofuran, thiophene, pyrrole, pyridine, etc. and an aromatic ring such as benzene, naphthalene, phenanthrene, etc. are condensed, or an aliphatic ring such as cyclopentane, cyclohexane, etc. are condensed is also considered a heterocyclic ring, and a spiro compound in which at least one ring contains a heteroatom is also considered a heterocyclic ring.

[0033] The term "aliphatic ring" used in this specification refers to a cyclic hydrocarbon other than an aromatic hydrocarbon, including a monocyclic ring, a polycyclic ring, a condensed ring, a spiro compound, etc., and unless otherwise stated, refers to a ring having 3 to 60 carbon atoms, but is not limited thereto. In particular, an aliphatic ring (group) in this specification is defined as a hydrocarbon ring that does not contain any aromatic rings. Therefore, not only a saturated hydrocarbon ring such as a cycloalkyl group, but also a ring having one or more double bonds in the ring is considered to be an aliphatic ring as long as it is not an aromatic hydrocarbon.

[0034] The term "fused ring(group)" or "condensed ring(group)" used herein, unless otherwise stated, means a ring in which an aliphatic ring and an aromatic hydrocarbon (aromatic ring group or aryl ring) are condensed with each other, and unless otherwise stated, means a ring in which an aliphatic ring having 3 to 60 carbon atoms and an aromatic hydrocarbon having 6 to 60 carbon atoms are condensed with each other.

[0035] In this specification, the 'group name' corresponding to the aryl group, arylene group, heterocyclic group, etc., which are exemplified as examples of each symbol and its substituent, may be described as the 'group name reflecting the valence', or may be described as the 'parent compound name'. For example, in the case of 'phenanthrene', which is a type of aryl group, the name of the group may be described by distinguishing the valence, such as 'phenanthryl' for the monovalent 'group' and 'phenantrylene' for the divalent group, or it may be described as the parent compound name 'phenanthrene' regardless of the valence. Similarly, in the case of pyrimidine, it may be described as 'pyrimidine' regardless of the valence, or it may be described as the 'group name' of the corresponding valence, such as pyrimidinyl group for monovalent and pyrimidinylene for divalent.

[0036] In addition, in this specification, numbers or alphabets indicating positions may be omitted when describing compound names or substituent names. For example, pyrido[4,3-d]pyrimidine may be described as pyridopyrimidine, benzofuro[2,3-d]pyrimidine as benzofuropyrimidine, 9,9-dimethyl-9H-fluorene as dimethylfluorene, etc. Accordingly, both benzo[g]quinoxaline and benzo[f]quinoxaline may be described as benzoquinoxaline.

[0037] Additionally, unless explicitly stated otherwise, the chemical formulas used in the present invention are applied in the same manner as the substituent definitions by the index definitions of the chemical formulas below.

[0038]

[0039] Here, if a is an integer of 0, the substituent R 1means that it is absent, that is, when a is 0, it means that all the carbons forming the benzene ring are bonded with hydrogen, and in this case, the indication of hydrogen bonded to carbon can be omitted and the chemical formula or compound can be described. In addition, when a is an integer of 1, one substituent R 1 It binds to one of the carbons forming the benzene ring, and when a is an integer of 2 or 3, it can bind as follows, for example, and when a is an integer of 4 to 6, it binds to the carbon of the benzene ring in a similar manner, and when a is an integer of 2 or more, R 1 may be the same or different.

[0040]

[0041] In addition, unless otherwise stated herein, a ring refers to an aryl ring, a heteroaryl ring, a fluorene ring, an aliphatic ring, a fused ring, etc., and a number-ring refers to a condensed ring, and a number-atom ring refers to a ring shape. For example, naphthalene corresponds to a two-ring condensed ring, anthracene corresponds to a three-ring condensed ring, thiophene and furan correspond to a five-membered heterocycle, and benzene and pyridine correspond to a six-membered aromatic ring.

[0042] In addition, unless otherwise stated in this specification, the rings formed by bonding adjacent groups to each other are C6~C 60 Aromatic ring group; Fluorenyl group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of; C3~C 60 Aliphatic ring group; and C3~C 60 Aliphatic ring and C6~C 60 The aromatic ring may be selected from the group consisting of a fused ring group. Here, the aromatic ring group may be an aryl ring, and the heterocyclic group may include a heteroaryl ring.

[0043] Unless otherwise stated herein, 'neighboring groups' includes, for example, R1 and R2, R2 and R3, R3 and R4, R5 and R6, as well as R7 and R8 sharing a carbon, and may also include substituents bonded to non-adjacent ring elements (carbon, nitrogen, etc.), such as R1 and R7, R1 and R8, or R4 and R5. That is, when there is a substituent on a ring element such as a carbon or nitrogen that is immediately adjacent, they can be neighboring groups, but when no substituent is bonded to the ring element at the immediately adjacent position, the substituent bonded to the next ring element can be a neighboring group, and substituents bonded to the same ring carbon can also be neighboring groups. In the following chemical formula, when substituents bonded to the same carbon, such as R7 and R8, bond to each other to form a ring, a compound including a spiro moiety can be formed.

[0044] ,

[0045] Additionally, in this specification, the expression 'adjacent groups can combine with each other to form a ring' is used with the same meaning as 'adjacent groups combine with each other to selectively form a ring', and means a case where at least one pair of adjacent groups combine with each other to form a ring.

[0046] In addition, unless otherwise stated herein, substituents such as aryl group, arylene group, fluorenyl group, fluorenylene group, heterocyclic group, aliphatic ring group, fused ring group, alkyl group, alkenyl group, alkynyl group, alkoxy group, aryloxy group, alkylthio group, arylthio group, etc., rings formed by bonding adjacent groups to each other, etc., are each deuterium; halogen; cyano group; nitro group; siloxane group; C6-C 30Aryl group of; Fluorenyl group; C2-C containing at least one heteroatom selected from the group consisting of O, N, S, Si and P 30 Heterocyclic group of; C3-C 30 Aliphatic ring group; C3~C 60 Aliphatic ring and C6~C 60 Fused ring group of aromatic ring; C1-C 20 alkyl group of; C2-C 20 alkenyl group of; C2-C 20 Alkynyl group of; C1-C 20 Alkoxy group of; C6-C 20 Aryloxy group of; C1-C 20 Alkylthio group of; C6-C 20 Arylthio group of; C1-C 20 Alkyl group or C6-C 20 A silane group substituted or unsubstituted with an aryl group; and C1-C 20 Alkyl group or C6-C 20 It may be substituted with one or more substituents selected from the group consisting of phosphine oxide groups substituted or unsubstituted with an aryl group.

[0047] Unless otherwise stated in this specification, the symbols "*" or " " represents the joining part.

[0048] Hereinafter, the laminated structure of an organic electric device including the compound of the present invention will be described with reference to FIGS. 1 to 3.

[0049] When assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals whenever possible, even if they appear on different drawings. Furthermore, when describing the present invention, if a detailed description of a related known configuration or function is deemed likely to obscure the gist of the present invention, such detailed description will be omitted.

[0050] When describing components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms. When it is described that a component is "connected," "coupled," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but another component may also be "connected," "coupled," or "connected" between each component.

[0051] Furthermore, when a component such as a layer, membrane, region, or plate is said to be "on" or "over" another component, it should be understood that this includes not only the case where it is "directly on" the other component, but also the case where there are other components in between. Conversely, when a component is said to be "directly on" another part, it should be understood that there are no other components in between.

[0052] Figures 1 to 3 are exemplary diagrams of organic electric devices according to embodiments of the present invention.

[0053] Referring to FIG. 1, an organic electric element (100) according to one embodiment of the present invention includes a first electrode (110), a second electrode (170), and an organic layer formed between the first electrode (110) and the second electrode (170) formed on a substrate (not shown), and an inorganic layer may be included between the first electrode (110) and the second electrode (120).

[0054] For example, the first electrode (110) may be an anode, the second electrode (170) may be a cathode, and in the case of an inverted type, the first electrode may be a cathode and the second electrode may be an anode.

[0055] The above organic layer refers to a layer containing at least one organic material. For example, the organic layer may include a hole injection layer (120), a hole transport layer (130), a light-emitting layer (140), an electron transport layer (150), and an electron injection layer (160). However, the electron injection layer (160) may be an inorganic layer that does not contain an organic material.

[0056] Specifically, a hole injection layer (120), a hole transport layer (130), a light-emitting layer (140), an electron transport layer (150), and an electron injection layer (160) can be sequentially formed on a first electrode (110).

[0057] Preferably, a light efficiency improvement layer (180) may be formed on one side of the first electrode (110) or the second electrode (170) that is not in contact with the organic layer or the inorganic layer, and when the light efficiency improvement layer (180) is formed, the light efficiency of the organic electric element may be improved.

[0058] For example, a light efficiency improvement layer (180) can be formed on the second electrode (170). In the case of a top emission organic light emitting device, the formation of the light efficiency improvement layer (180) can reduce optical energy loss due to SPPs (surface plasmon polaritons) in the second electrode (170), and in the case of a bottom emission organic light emitting device, the light efficiency improvement layer (180) can serve as a buffer for the second electrode (170).

[0059] A buffer layer (210) or a light-emitting auxiliary layer (220) may be further formed between the hole transport layer (130) and the light-emitting layer (140), which will be described with reference to FIG. 2.

[0060] Referring to FIG. 2, an organic electric device (200) according to another embodiment of the present invention may include a hole injection layer (120), a hole transport layer (130), a buffer layer (210), a light-emitting auxiliary layer (220), a light-emitting layer (140), an electron transport layer (150), an electron injection layer (160), and a second electrode (170) sequentially formed on a first electrode (110), and a light efficiency improvement layer (180) may be formed on the second electrode.

[0061] Although not shown in FIG. 2, an electron transport auxiliary layer may be further formed between the light-emitting layer (140) and the electron transport layer (150).

[0062] Additionally, according to another embodiment of the present invention, the organic layer may be formed in a form in which a plurality of stacks including a hole transport layer, a light-emitting layer, and an electron transport layer are formed. This will be described with reference to FIG. 3.

[0063] Referring to FIG. 3, an organic electric element (300) according to another embodiment of the present invention may have two or more sets of stacks (ST1, ST2) of organic layers formed of multiple layers formed between a first electrode (110) and a second electrode (170), and a charge generation layer (CGL) may be formed between the stacks of organic layers.

[0064] Specifically, an organic electric device according to one embodiment of the present invention may include a first electrode (110), a first stack (ST1), a charge generation layer (CGL: Charge Generation Layer), a second stack (ST2), a second electrode (170), and a light efficiency improvement layer (180).

[0065] The first stack (ST1) is an organic layer formed on the first electrode (110), which may include a first hole injection layer (320), a first hole transport layer (330), a first light-emitting layer (340), and a first electron transport layer (350), and the second stack (ST2) may include a second hole injection layer (420), a second hole transport layer (430), a second light-emitting layer (440), and a second electron transport layer (450). In this way, the first stack and the second stack may be organic layers having the same stacked structure, but may also be organic layers having different stacked structures.

[0066] A charge generation layer (CGL) may be formed between the first stack (ST1) and the second stack (ST2). The charge generation layer (CGL) may include a first charge generation layer (360) and a second charge generation layer (361). This charge generation layer (CGL) is formed between the first light-emitting layer (340) and the second light-emitting layer (440) to increase the current efficiency generated in each light-emitting layer and to smoothly distribute charges.

[0067] The first light-emitting layer (340) may include a light-emitting material including a blue fluorescent dopant in a blue host, and the second light-emitting layer (440) may include a material doped with a greenish yellow dopant and a red dopant in a green host, but the materials of the first light-emitting layer (340) and the second light-emitting layer (440) according to the embodiment of the present invention are not limited thereto.

[0068] In FIG. 3, n can be an integer from 1 to 5, and when n is 2, a charge generation layer (CGL) and a third stack can be additionally stacked on the second stack (ST2).

[0069] When a plurality of light-emitting layers are formed by a multi-layer stack structure as shown in Fig. 3, not only can an organic light-emitting device that emits white light be manufactured by the mixing effect of the light emitted from each light-emitting layer, but an organic light-emitting device that emits light of various colors can also be manufactured.

[0070] The compound represented by the chemical formula 1 of the present invention may be included in an organic layer. For example, the compound represented by the chemical formula 1 of the present invention may be used as a material for a hole injection layer (120, 320, 420), a hole transport layer (130, 330, 430), a buffer layer (210), a light-emitting auxiliary layer (220), an electron transport layer (150, 350, 450), a light-emitting layer (140, 340, 440), or a light efficiency improvement layer (180), but may preferably be used as a material for a light-emitting auxiliary layer (220).

[0071] Even if the core is identical or similar, the band gap, electrical properties, and interface properties can vary depending on which substituent is bonded at which position. Therefore, research on the selection of the core and the combination of sub-substituents bonded to it is necessary. In particular, when the energy level and T1 value between each organic layer and the intrinsic properties of the material (mobility, interface properties, etc.) are optimally combined, long life and high efficiency can be achieved simultaneously.

[0072] Therefore, in the present invention, by using the compound represented by chemical formula 1 as a material of the light-emitting auxiliary layer (220), the energy level and T1 value between each organic layer, and the inherent characteristics of the material (mobility, interface characteristics, etc.) can be optimized, thereby simultaneously improving the lifespan and efficiency of the organic electric device.

[0073] An organic light emitting diode according to an embodiment of the present invention may be manufactured using various deposition methods. It may be manufactured using a deposition method such as PVD or CVD. For example, it may be manufactured by forming an anode (110) by depositing a metal or a conductive metal oxide or an alloy thereof on a substrate, forming an organic layer including a hole injection layer (120), a hole transport layer (130), a light emitting layer (140), an electron transport layer (150), and an electron injection layer (160) thereon, and then depositing a material that can be used as a cathode (170) thereon. In addition, an emission auxiliary layer (220) may be further formed between the hole transport layer (130) and the light emitting layer (140), and an electron transport auxiliary layer (not shown) may be further formed between the emission layer (140) and the electron transport layer (150), or may be formed in a stack structure as described above.

[0074] In addition, the organic layer can be manufactured with a smaller number of layers by using various polymer materials and a solution process or solvent process other than a deposition method, such as a spin coating process, a nozzle printing process, an inkjet printing process, a slot coating process, a dip coating process, a roll-to-roll process, a doctor blading process, a screen printing process, or a thermal transfer method. Since the organic layer according to the present invention can be formed by various methods, the scope of the present invention is not limited by the formation method.

[0075] An organic electric device according to one embodiment of the present invention may be a front-emitting, back-emitting, or double-sided emitting type depending on the material used.

[0076] In addition, the organic electric device according to one embodiment of the present invention may be selected from the group consisting of an organic light-emitting device, an organic solar cell, an organic photoconductor, an organic transistor, a device for monochrome lighting, and a device for quantum dot display.

[0077] Another embodiment of the present invention may include a display device including the organic electric element of the present invention described above, and an electronic device including a control unit for controlling the display device. In this case, the electronic device may be a current or future wired or wireless communication terminal, and includes all electronic devices such as mobile communication terminals such as cell phones, navigation systems, game consoles, various TVs, and various computers.

[0078] Hereinafter, a compound according to one aspect of the present invention will be described.

[0079] A compound according to one aspect of the present invention is represented by the following chemical formula 1.

[0080] <Chemical Formula 1>

[0081]

[0082] In the above chemical formula 1, each symbol is defined as follows.

[0083] R 1 Inland R 5 are independently hydrogen; deuterium; halogen; cyano group; nitro group; C6~C 60 Aryl group of; fluorenyl group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of; C3~C 60 Aliphatic ring group; C6~C 60 Aromatic ring and C3~C 60 Fused ring group of aliphatic ring; C1~C 20 Alkyl group of; C2~C 20 Alkenyl group of; C2~C 20 Alkynyl group of; C1~C 20 Alkoxy group of; and C6~C 60 is selected from the group consisting of aryloxy groups, and adjacent groups can be combined with each other to form a ring, provided that adjacent R 5 Except when they combine with each other to form a ring.

[0084] a, d and e are each integers from 0 to 4, b and c are each integers from 0 to 3, and if they are integers greater than or equal to 2, then a plurality of R 1 Each, multiple R 2 Each, multiple R 3 Each, multiple R 4 Each, multiple R 5 Each is either the same or different from the other.

[0085] R a Inland R d are independently of each other C1~C 20 Alkyl group of; C6~C 60 Aryl group of; fluorenyl group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of; C3~C 60 Aliphatic ring group; and C6~C 60 Aromatic ring and C3~C 60 It is selected from the group consisting of fused ring groups of aliphatic rings, and adjacent groups can combine with each other to form a ring.

[0086] Neighboring units, for example, neighboring R 1 Kiri, neighboring R 2 Kiri, neighboring R 3 Kiri, neighboring R 4 Kiri, neighboring R a Wow R b , neighboring R c Wow R d can combine with each other to form a ring, and the ring is C6~C 60 Aromatic ring group; Fluorenyl group; C3~C 60 Aliphatic ring group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of; and C3~C 60 Aliphatic ring and C6~C 60 It can be selected from the group consisting of fused ring groups of aromatic rings.

[0087] Neighboring R a Wow Rb , neighboring R c Wow R d When they combine with each other to form a ring, a spiro compound is formed.

[0088] For example, R a Wow R b are combined with each other or R c Wow R d can combine with each other to form a fluorene ring or an aliphatic ring. R a Wow R b are combined with each other or R c Wow R d When they combine with each other to form an aliphatic ring, the aliphatic ring is, for example, C3~C 30 , C3~C 29 , C3~C 28 , C3~C 27 , C3~C 26 , C3~C 25 , C3~C 24 , C3~C 23 , C3~C 22 , C3~C 21 , C3~C 20 , C3~C 19 , C3~C 18 , C3~C 17 , C3~C 16 , C3~C 15 , C3~C 14 , C3~C 13 , C3~C 12 , C3~C 11 , C3~C 10 , C3~C8, C3~C6, C6, C 10 , C 11 , C 12 , C 13 , C 14 , C 15 , C 16 , C 17 , C 18 It may be an aliphatic ring group such as cyclobutane, cyclopentane, cyclohexane, cyclohexene, bicycloheptane, adamantyl, etc.

[0089] R1 Inland R 5 , R a Inland R d If at least one of them is an alkyl group, the alkyl group is, for example, C1~C 20 , C1~C 10 , C1~C4, C1, C2, C3, C4, etc., and for example, it can be a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a t-butyl group, a pentyl group, etc., and the hydrogen of the alkyl group can be replaced with deuterium.

[0090] R 1 Inland R 5 , R a Inland R d If at least one of them is an aryl group, the aryl group is, for example, C6~C 30 , C6~C 29 , C6~C 28 , C6~C 27 , C6~C 26 , C6~C 25 , C6~C 24 , C6~C 23 , C6~C 22 , C6~C 21 , C6~C 20 , C6~C 19 , C6~C 18 , C6~C 17 , C6~C 16 , C6~C 15 , C6~C 14 , C6~C 13 , C6~C 12 , C6~C 11 , C6~C 10 , C6, C 10 , C 12 , C 13 , C 14 , C 15 , C 16 , C 17 , C 18 It may be an aryl group such as, for example, phenyl, biphenyl, naphthyl, terphenyl, phenanthrene, triphenylene, etc.

[0091] R 1 Inland R5 If at least one of them is a heterocyclic group, the heterocyclic group is, for example, C2~C 30 , C2~C 29 , C2~C 28 , C2~C 27 , C2~C 26 , C2~C 25 , C2~C 24 , C2~C 23 , C2~C 22 , C2~C 21 , C2~C 20 , C2~C 19 , C2~C 18 , C2~C 17 , C2~C 16 , C2~C 15 , C2~C 14 , C2~C 13 , C2~C 12 , C2~C 11 , C2~C 10 , C2~C9, C2~C8, C2~C7, C2~C6, C2~C5, C2~C4, C2~C3, C2, C3, C4, C5, C6, C7, C8, C9, C 10 , C 11 , C 12 , C 13 , C 14 , C 15 , C 16 , C 17 , C 18 , C 19 , C 20 , C 21 , C 22 , C 23 , C 24 , C 25 , C 26 , C 27 , C 28 , C 29It may be a heterocyclic group such as, and specifically, pyridine, pyrimidine, pyrazine, pyridazine, triazine, furan, pyrrole, indene, indole, phenyl-indole, benzoindole, phenyl-benzoindole, pyrazinoindole, quinoline, isoquinoline, benzoquinoline, pyridoquinoline, quinazoline, benzoquinazoline, dibenzoquinazoline, phenanthroquinazoline, quinoxaline, benzoquinoxaline, dibenzoquinoxaline, benzofuran, naphthobenzofuran, dibenzofuran, dinaphthofuran, phenanthrobenzofuran, thiophene, benzothiophene, dibenzothiophene, naphthobenzothiophene, dinaphthothiophene, phenantrobenzothiophene, carbazole, phenyl-carbazole, Benzocarbazole, phenyl-benzocarbazole, naphthyl-benzocarbazole, dibenzocarbazole, indolocarbazole, benzofuropyridine, benzothiopyridine, benzofuropyridine, benzothiopyrimidine, benzofuropyrimidine, benzothiopyrazine, benzofuropyrazine, benzimidazole, benzothiazole, benzosilole, phenanthroline, dihydro-phenylphenazine, 10-phenyl-10H-phenoxazine, phenoxazine, phenothiazine, dibenzodioxin, benzodibenzodioxin, thianthrene, oxazole, benzoxazole, naphthooxazole, phenanthrooxazole, dibenzothiobenzoxazole, dibenzofurobenzoxazole, It may be 9,9-dimethyl-9H-xanthrene, 9,9-dimethyl-9H-thioxanthrene, dihydrodimethylphenylacridine, spiro[fluorene-9,9'-xanthrene], etc.

[0092] R 1 Inland R 5 If at least one of them is an aliphatic ring group, the aliphatic ring group is, for example, C3~C 30 , C3~C 29 , C3~C 28 , C3~C 27 , C3~C 26 , C3~C 25 , C3~C 24 , C3~C 23 , C3~C 22 , C3~C 21 , C3~C 20 , C3~C 19 , C3~C 18 , C3~C17 , C3~C 16 , C3~C 15 , C3~C 14 , C3~C 13 , C3~C 12 , C3~C 11 , C3~C 10 , C3~C8, C3~C6, C6, C 10 , C 11 , C 12 , C 13 , C 14 , C 15 , C 16 , C 17 , C 18 It may be an aliphatic ring group such as cyclobutane, cyclopentane, cyclohexane, cyclohexene, bicycloheptane, adamantyl, etc.

[0093] R 1 Inland R 5 If at least one of them is an alkoxy group, the alkoxy group is, for example, C1~C 20 , C1~C 10 , C1~C4, C1, C2, C3, C4, etc., and for example, it can be a methoxy group, an ethoxy group, a t-butoxy group, etc.

[0094] R 1 Inland R 5 If at least one of them is an alkenyl group, the alkenyl group is, for example, C2~C 20 , C2~C 10 , it can be an alkenyl group such as C2~C4, C2, C3, C4, etc.

[0095] Ar a is C6~C 60 Arylene group; Fluorenylene group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of; and C6~C 60 Aromatic ring and C3~C 60 is selected from the group consisting of fused ring groups of aliphatic rings, Ar b C6~C, which consists of only 6 circles 60Aryl group of; or C2~C consisting of only 6 members including at least one heteroatom among O, N, S, Si and P 60 It is a heterocyclic group.

[0096] However, Ar a and Ar b is a single ring structure or a condensed ring structure, and Ar a and Ar b At least one of them is substituted with Ak, wherein said Ak is C1~C 20 alkyl group of; or C3~C 60 It is a fatty acid ring.

[0097] For example, Ar a If Ar is a single ring, the single ring may be phenyl, pyridine, pyrimidine, triazine, thiophene, furan, etc., and Ar a If it is a condensed ring structure, the condensed ring structure may be naphthyl, phenanthrene, dibenzofuran, dibenzothiophene, carbazole, benzoxazole, benzothiazole, etc.

[0098] Also, Ar b If Ar is a single ring, the single ring may be a ring composed of only 6 members, such as phenyl, pyridine, pyrimidine, triazine, etc., and b If it is a condensed ring structure, the condensed ring structure may be a condensed ring composed of only 6 members, such as naphthyl or phenanthrene.

[0099] For example, Ar a is the chemical formula Ar a -1 to chemical formula Ar a -Can be selected from the group consisting of, but not limited to, 16.

[0100] <Chemical formula Ar a -1> <Chemical formula Ar a -2> <Chemical formula Ar a -3> <Chemical formula Ar a -4>

[0101]

[0102] <Chemical formula Ar a -5> <Chemical formula Ar a -6> <Chemical formula Ar a -7> <Chemical formula Ar a -8>

[0103]

[0104] <Chemical formula Ar a -9> <Chemical formula Ar a -10> <Chemical formula Ar a -11> <Chemical formula Ar a -12>

[0105]

[0106] <Chemical formula Ar a -13> <Chemical formula Ar a -14> <Chemical formula Ar a -15> <Chemical formula Ar a -16>

[0107]

[0108] The above chemical formula Ar a -1 to Ar a In -16, each symbol is defined as follows.

[0109] R 6 Inland R 14 are independently hydrogen; deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with an aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; cyano group; nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C 30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 alkyl group of; C2-C 20 alkenyl group of; C2-C 20 Alkynyl group of; C6-C30 Aryl group of; fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, and adjacent groups can be combined with each other to form a ring, and the hydrogen of the substituent can be replaced with deuterium, provided that R 6 Inland R 14 If it is a ring structure, the ring is a single ring structure or a condensed ring structure.

[0110] Z is O, S, C(R e )(R f ) or N(Ar 1 ) and, however, Ara-15 and Ara-16 are phenylene or Ar through Z. b If connected to , Z is N.

[0111] R e , R f , Ar 1 are independently C1-C 20 alkyl group of; C6-C 30 Aryl group of; C6-C substituted with deuterium 30 Aryl group of; fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, R e Wow R f can combine with each other to form rings.

[0112] f, h, j, k, m, n are each integers from 0 to 4, g is an integer from 0 to 6, i and l are each integers from 0 to 2, and if they are integers greater than or equal to 2, multiple R 6 Each or multiple R 14 Each is either the same or different from the other.

[0113] For example, Ar b is the chemical formula Ar b -1 to chemical formula Ar b -Can be selected from the group consisting of, but not limited to, 8.

[0114] <Chemical formula Ar b -1> <Chemical formula Ar b -2> <Chemical formula Ar b -3> <Chemical formula Ar b -4>

[0115]

[0116] <Chemical formula Ar b -5> <Chemical formula Ar b -6> <Chemical formula Ar b -7> <Chemical formula Ar b -8>

[0117]

[0118] The above chemical formula Ar b -1 to chemical formula Ar b In -8, each symbol is defined as follows.

[0119] R 15 Inland R 17 are independently hydrogen; deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with an aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; cyano group; nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 alkyl group of; C2-C 20 alkenyl group of; C2-C 20 Alkynyl group of; C6-C 30 Aryl group of; fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, and adjacent groups can be combined with each other to form a ring, and the hydrogen of the substituent can be replaced with deuterium, provided that R 15 Inland R 17 In the case of this ring structure, the ring is a single 6-membered ring structure or a condensed ring structure in which only 6 members are condensed, and when a ring is formed between adjacent groups, the ring is a 6-membered ring.

[0120] o is an integer from 0 to 5, p is an integer from 0 to 7, q is an integer from 0 to 9, and if these are integers greater than or equal to 2, then a plurality of R 15 Each, multiple R 16 Each, multiple R 17 Each is either the same or different from the other.

[0121] Ar a , Ar b At least one of them may be substituted with Ak, wherein Ak may be selected from the group consisting of the following chemical formulae Ak-1 to Ak-8, but is not limited thereto.

[0122] <Chemical Formula Ak-1> <Chemical Formula Ak-2> <Chemical Formula Ak-3> <Chemical Formula Ak-4>

[0123]

[0124] <Chemical Formula Ak-5> <Chemical Formula Ak-6> <Chemical Formula Ak-7> <Chemical Formula Ak-8>

[0125]

[0126] In the above chemical formulas Ak-1 to Ak-8, hydrogen can be replaced with deuterium.

[0127] In the above chemical formula 1, R 1 Inland R 5 , R a Inland R d , Ar a and Ar b are respectively deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with an aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; cyano group; nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C 30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 alkyl group of; C2-C 20 alkenyl group of; C2-C 20 Alkynyl group of; C6-C 30 Aryl group of; fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 It can be substituted with one or more substituents selected from the group consisting of heterocyclic groups, and adjacent substituents can be combined with each other to form a ring, and hydrogen of the substituents can be replaced with deuterium.

[0128] However, substituted or unsubstituted Ar a and Ar bWhen Ar includes a ring structure, the ring is a single ring structure or a condensed ring structure, and b In this case, the above single ring type is a six-membered structure, and the above condensed ring structure is a structure condensed with only two or more six-membered rings.

[0129] Therefore, Ar a When Ar is substituted with a ring structure among the above substituents, the ring is a single ring structure or a condensed ring structure, and b When the above substituents are substituted with a ring structure, the ring is a six-membered monocyclic structure or a condensed ring structure composed of only six members.

[0130] Also, Ar a and Ar b When adjacent groups among the substituents combine with each other to form a ring, a condensed ring structure is formed, so Ar b The condensed ring structure formed by the substituents combining with each other is also limited to a structure consisting of only six members.

[0131] The above chemical formula 1 can be represented by one of the following chemical formulas 1-1 to 1-3.

[0132] <Chemical Formula 1-1>

[0133]

[0134] <Chemical Formula 1-2>

[0135]

[0136] <Chemical Formula 1-3>

[0137]

[0138] In the above chemical formulas 1-1 to 1-3, R 1 Inland R 5 , R a Inland R d , Ak, a to e are as defined in chemical formula 1.

[0139] Specifically, the compound represented by the above chemical formula 1 may be one of the following compounds, but is not limited thereto.

[0140]

[0141]

[0142]

[0143]

[0144]

[0145]

[0146]

[0147]

[0148]

[0149]

[0150]

[0151]

[0152]

[0153]

[0154]

[0155]

[0156]

[0157]

[0158]

[0159]

[0160]

[0161]

[0162]

[0163]

[0164]

[0165]

[0166]

[0167] .

[0168] In another aspect, the present invention provides an organic electric device comprising a first electrode, a second electrode, and an organic layer formed between the first electrode and the second electrode, wherein the organic layer comprises a compound of formula 1, and preferably, the compound is included in a light-emitting auxiliary layer.

[0169] In another aspect, the present invention provides an electronic device including a display device including an organic electric element and a control unit for driving the display device, wherein the organic electric element includes a compound represented by the chemical formula 1.

[0170] In another aspect, the present invention provides a compound represented by the chemical formula 1 obtained by recovering and purifying the material of an organic layer from a deposition device after depositing the organic layer in a manufacturing process of an organic electric device. The purity of the compound obtained by recovery and purification is 99.9% or higher.

[0171] In another aspect, the present invention provides a method for recovering a compound, comprising the steps of depositing an organic layer material including a compound represented by Chemical Formula 1, recovering the organic layer material attached to a deposition device, and purifying the recovered organic layer material to obtain a compound represented by Chemical Formula 1 having a purity of 99.9% or higher.

[0172] The above purification step may include a step of recrystallizing the recovered organic layer material using a recrystallization solvent, a step of adsorption separation using an adsorbent, and a step of sublimation purification.

[0173] The above recrystallization step may include a preliminary purification process for obtaining a compound represented by the above chemical formula 1 with a purity of 98% using a recrystallization solvent.

[0174] A polar solvent having a polarity index (PI) of 5.5 to 7.2 is preferably used as the recrystallization solvent, or a mixture of a polar solvent having a polarity index of 5.5 to 7.2 and a non-polar solvent having a polarity index of 2.0 to 4.7 may be used.

[0175] When using a mixture of a polar solvent and a non-polar solvent as a recrystallization solvent, the non-polar solvent may be used in a ratio of 15% (v / v) or less compared to the polar solvent.

[0176] In addition, as a recrystallization solvent, a single solvent of methylpyrrolidone (N-methylpyrrolidone: NMP) is preferably used; or a mixed polar solvent in which any one selected from the group consisting of methylpyrrolidone, dimethyl imidazolidinone (1,3-dimethyl-2-imidazolidinone), 2-pyrrolidone, dimethylformamide (N,N-dimethyl formamide), dimethyl acetamide, and dimethyl sulfoxide is mixed; or a single or mixed nonpolar solvent selected from the group consisting of toluene, dichloromethane (DCM), dichloroethane (DCE), tetrahydrofuran (THF), chloroform, ethyl acetate, and butanone, or a mixture of polar solvents and nonpolar solvents can be used.

[0177] The above preliminary purification process may include a step of dissolving the unrefined organic light-emitting material recovered from the deposition equipment in a polar solvent at 90°C to 120°C and then cooling it to 0°C to 5°C to precipitate crystals.

[0178] The above preliminary purification process may include a step of dissolving an unrefined organic light-emitting material recovered from a deposition device in a polar solvent at 90°C to 120°C, cooling to 35°C to 40°C, adding a non-polar solvent, and then cooling to 0°C to 5°C to precipitate a crystal.

[0179] The above preliminary purification process may include a step of dissolving the crude organic light-emitting material recovered from the deposition equipment in a non-polar solvent, concentrating the solvent, and precipitating crystals while removing the non-polar solvent.

[0180] The above preliminary purification process may include a step of first recrystallizing with a polar solvent and then recrystallizing again with a non-polar solvent.

[0181] In the adsorption separation step using the above adsorbent, activated carbon, silica gel, alumina or a known material for adsorption purposes can be used as the adsorbent.

[0182] Hereinafter, examples of synthesis of a compound represented by Chemical Formula 1 according to the present invention and examples of manufacturing an organic electric device will be described in detail with reference to examples, but the present invention is not limited thereto.

[0183] [Synthesis Example 1] Compound represented by Chemical Formula 1

[0184] The compound represented by chemical formula 1 according to the present invention (Final Product) can be synthesized as in the following reaction scheme 1, but is not limited thereto.

[0185] <Reaction Scheme 1> (Hal is Cl, Br, or I)

[0186]

[0187] Example compounds of Sub 1

[0188] Sub 1 of the above reaction formula 1 may be a compound as follows, but is not limited thereto, and the FD-MS (Field Desorption-Mass Spectrometry) values ​​of the compounds below are as shown in Table 1.

[0189]

[0190]

[0191]

[0192]

[0193]

[0194]

[0195]

[0196]

[0197] 화합물FD-MS화합물FD-MSSub 1-1m / z=401.21(C 30 H 27 N = 401.55) Sub 1-2m / z = 477.25 (C 36 H 31 N = 477.65) Sub 1-3m / z = 477.25 (C 36 H 31 N = 477.65) Sub 1-4m / z = 491.26 (C 37 H 33 N = 491.68) Sub 1-5 m / z = 583.23 (C 42 H 33 NS=583.79)Sub 1-6m / z=513.34(C 38 H 43 N = 513.77) Sub 1-7 m / z = 533.31 (C 40 H 39 N = 533.76) Sub 1-8m / z = 477.25 (C 36 H 31 N = 477.65) Sub 1-9m / z = 413.29 (C 30 H 15 D 12 N = 413.63) Sub 1-10m / z = 477.25 (C 36 H 31 N = 477.65) Sub 1-11m / z = 533.31 (C 40 H 39 N = 533.76) Sub 1-12m / z = 429.25 (C 32H 31 N=429.61)Sub 1-13m / z=533.31(C 40 H 39 N=533.76)Sub 1-14m / z=407.25(C 30 H 21 D6N=407.59)Sub 1-15m / z=483.28(C 36 H 25 D6N=483.69)Sub 1-16m / z=527.26(C 40 H 33 N=527.71)Sub 1-17m / z=477.25(C 36 H 31 N=477.65)Sub 1-18m / z=525.25(C 40 H 31 N=525.69)Sub 1-19m / z=677.31(C 52 H 39 N=677.89)Sub 1-20m / z=601.28(C 46 H 35 N=601.79)Sub 1-21m / z=677.31(C 52 H 39 N=677.89)Sub 1-22m / z=601.28(C 46 H 35 N=601.79)Sub 1-23m / z=531.28(C 40 H 25 D6N=531.73)Sub 1-24m / z=601.28(C 46 H 35 N=601.79)Sub 1-25m / z=649.28(C 50 H 35 N=649.84)Sub 1-26m / z=523.23(C 40 H 29 N=523.68)Sub 1-27m / z=677.27(C 51 H 35 NO=677.85)Sub 1-28m / z=645.25(C 50 H 31 N=645.80)Sub 1-29m / z=541.22(C 40 H 28FN=541.67)Sub 1-30m / z=585.25(C 45 H 31 N=585.75)Sub 1-31m / z=549.25(C 42 H 31 N=549.72)Sub 1-32m / z=529.27(C 40 H 23 D6N=529.72)Sub 1-33m / z=493.28(C 37 H 35 N=493.69)Sub 1-34m / z=569.31(C 43 H 39 N=569.79)Sub 1-35m / z=575.35(C 43 H 33 D6N=575.83)Sub 1-36m / z=523.31(C 39 H 29 D6N=523.75)Sub 1-37m / z=441.25(C 33 H 31 N=441.62)Sub 1-38m / z=459.28(C 34 H 25 D6N=459.67)Sub 1-39m / z=585.34(C 44 H 43 N=585.83)Sub 1-40m / z=408.26(C 30 H 20 D7N=408.60)

[0198] Example compounds of Sub 2

[0199] Sub 2 of the above reaction scheme 1 may be a compound as follows, but is not limited thereto, and the FD-MS values ​​of the compounds below are as shown in Table 2.

[0200]

[0201]

[0202]

[0203]

[0204]

[0205]

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214]

[0215]

[0216]

[0217]

[0218] Compound FD-MS Compound FD-MS Sub 2-1 m / z = 320.13 (C 22 H 21 Cl = 320.86) Sub 2-2 m / z = 320.13 (C 22 H 21 Cl = 320.86) Sub 2-3 m / z = 376.20 (C 26 H 29 Cl = 376.97) Sub 2-4 m / z = 346.15 (C 24 H 23 Cl = 346.90) Sub 2-5 m / z = 346.15 (C 24 H 23 Cl = 346.90) Sub 2-6 m / z = 278.09 (C 19 H 15 Cl = 278.78) Sub 2-7 m / z = 370.15 (C 26 H 23 Cl = 370.92) Sub 2-8 m / z = 370.15 (C 26 H 23Cl=370.92)Sub 2-9m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-10m / z=427.21(C 30 H 18 D7Cl=428.02)Sub 2-11m / z=378.12(C 27 H 19 Cl=378.90)Sub 2-12m / z=436.16(C 30 H 25 ClO=436.98)Sub 2-13m / z=432.26(C 30 H 37 Cl=433.08)Sub 2-14m / z=396.16(C 28 H 25 Cl=396.96)Sub 2-15m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-16m / z=398.18(C 28 H 27 Cl=398.97)Sub 2-17m / z=292.10(C 20 H 17 Cl=292.81)Sub 2-18m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-19m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-20m / z=398.18(C 28 H 27 Cl=398.97)Sub 2-21m / z=358.15(C 25 H 23 Cl=358.91)Sub 2-22m / z=306.12(C 21 H 19 Cl=306.83)Sub 2-23m / z=398.18(C 28 H 27 Cl=398.97)Sub 2-24m / z=396.16(C 28 H 25 Cl=396.96)Sub 2-25m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-26m / z=320.13(C22 H 21 Cl=320.86)Sub 2-27m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-28m / z=350.17(C 24 H 19 D4Cl=350.92)Sub 2-29m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-30m / z=472.20(C 34 H 29 Cl=473.06)Sub 2-31m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-32m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-33m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-34m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-35m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-36m / z=426.21(C 30 H 31 Cl=427.03)Sub 2-37m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-38m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-39m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-40m / z=324.16(C 22 H 17 D4Cl=324.88)Sub 2-41m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-42m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-43m / z=420.16(C 30 H 25Cl=420.98)Sub 2-44m / z=410.14(C 28 H 23 ClO=410.94)Sub 2-45m / z=426.12(C 28 H 23 ClS=427.00)Sub 2-46m / z=409.16(C 28 H 24 ClN=409.96)Sub 2-47m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-48m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-49m / z=398.18(C 28 H 27 Cl=398.97)Sub 2-50m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-51m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-52m / z=470.18(C 34 H 27 Cl=471.04)Sub 2-53m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-54m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-55m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-56m / z=458.14(C 32 H 23 ClO=458.99)Sub 2-57m / z=278.09(C 19 H 15 Cl=278.78)Sub 2-58m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-59m / z=358.15(C 25 H 23 Cl=358.91)Sub 2-60m / z=396.16(C 28 H 25Cl=396.96)Sub 2-61m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-62m / z=396.16(C 28 H 25 Cl=396.96)Sub 2-63m / z=392.13(C 28 H 21 Cl=392.93)Sub 2-64m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-65m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-66m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-67m / z=342.12(C 24 H 19 Cl=342.87)Sub 2-68m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-69m / z=370.15(C 26 H 23 Cl=370.92)Sub 2-70m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-71m / z=448.2(C 32 H 29 Cl=449.03)Sub 2-72m / z=345.13(C 23 H 20 ClN=345.87)Sub 2-73m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-74m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-75m / z=342.12(C 24 H 19 Cl=342.87)Sub 2-76m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-77m / z=396.16(C 28 H 25 Cl=396.96)Sub 2-78m / z=488.32(C34 H 45 Cl=489.18)Sub 2-79m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-80m / z=346.15(C 24 H 23 Cl=346.90)Sub 2-81m / z=426.21(C 30 H 31 Cl=427.03)Sub 2-82m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-83m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-84m / z=420.16(C 30 H 25 Cl=420.98)Sub 2-85m / z=492.26(C 35 H 37 Cl=493.13)Sub 2-86m / z=320.13(C 22 H 21 Cl=320.86)Sub 2-87m / z=332.21(C 22 H9D 12 Cl=332.93)Sub 2-88m / z=332.21(C 22 H9D 12 Cl=332.93)Sub 2-89m / z=376.20(C 26 H 29 Cl=376.97)Sub 2-90m / z=348.16(C 24 H 25 Cl=348.91)

[0219] Synthesis example of the final compound

[0220] 1. Synthesis of P-1

[0221]

[0222] 1) Synthesis of Sub 2-1

[0223] Sub 2-1a (50.0 g, 209.7 mmol) was dissolved in THF (1048 ml), and then Sub 2-1-b (53.3 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added and the reaction was carried out at 80°C. Upon completion of the reaction, the mixture was extracted with CH2Cl2 and water, and the organic layer was dried over MgSO4 and concentrated. The concentrate was then separated through a silica gel column and recrystallized to obtain 55.2 g of the product. (Yield: 82.1%)

[0224] 2) Synthesis of P-1

[0225] Sub 1-1 (30.0 g, 74.7 mmol) was dissolved in toluene (374 mL), and then Sub 1-2 (24.0 g, 74.7 mmol), Pd2(dba)3 (2.1 g, 2.2 mmol), P(t-Bu)3 (0.9 g, 4.5 mmol), and NaOt-Bu (14.4 g, 149.4 mmol) were added and stirred at 120 °C. Upon completion of the reaction, the mixture was extracted with CH2Cl2 and water, and the organic layer was dried over MgSO4 and concentrated. The concentrate was then separated on a silica gel column and recrystallized to obtain 37.2 g of the product. (Yield: 72.5%)

[0226] 2. Synthesis of P-4

[0227]

[0228] 1) Synthesis of Sub 1-2

[0229] After dissolving Sub 1-2-a (50.0 g, 164.0 mmol) in toluene (820 mL), Sub 1-2-b (34.3 g, 164.0 mmol), Pd2(dba)3 (4.5 g, 4.9 mmol), P(t-Bu)3 (2.0 g, 9.8 mmol), and NaOt-Bu (31.5 g, 328.1 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 55.9 g of the product. (Yield: 71.3%)

[0230] 2) Synthesis of Sub 2-4

[0231] After dissolving Sub 2-4-a (50.0 g, 186.9 mmol) in THF (467 ml), Sub 2-4-b (38.1 g, 186.9 mmol), Pd(PPh3)4 (13.0 g, 11.2 mmol), NaOH (22.4 g, 560.6 mmol), and water (467 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 53.0 g of the product. (Yield: 81.7%)

[0232] 3) Synthesis of P-4

[0233] After dissolving Sub 1-2 (30.0 g, 62.8 mmol) in toluene (314 mL), Sub 2-4 (21.8 g, 62.8 mmol), Pd2(dba)3 (1.7 g, 1.9 mmol), P(t-Bu)3 (0.8 g, 3.8 mmol), and NaOt-Bu (12.1 g, 125.6 mmol) were added, and the same method as the synthesis example of P-1 was carried out to obtain 36.0 g of the product. (Yield: 72.7%)

[0234] 3. Synthesis of P-15

[0235]

[0236] 1) Synthesis of Sub 1-5

[0237] After dissolving Sub 1-5-a (50.0 g, 121.7 mmol) in toluene (608 mL), Sub 1-2-b (25.5 g, 121.7 mmol), Pd2(dba)3 (3.3 g, 3.7 mmol), P(t-Bu)3 (1.5 g, 7.3 mmol), and NaOt-Bu (23.4 g, 243.3 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 49.6 g of the product. (Yield: 69.8%)

[0238] 2) Synthesis of Sub 2-15

[0239] After dissolving Sub 2-15-a (50.0 g, 186.9 mmol) in THF (467 ml), Sub 2-4-b (38.1 g, 186.9 mmol), Pd(PPh3)4 (13.0 g, 11.2 mmol), NaOH (22.4 g, 560.6 mmol), and water (467 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 52.8 g of the product. (Yield: 81.5%)

[0240] 3) Synthesis of P-15

[0241] After dissolving Sub 1-5 (30.0 g, 51.4 mmol) in toluene (257 mL), Sub 2-15 (17.8 g, 51.4 mmol), Pd2(dba)3 (1.4 g, 1.5 mmol), P(t-Bu)3 (0.6 g, 3.1 mmol), and NaOt-Bu (9.9 g, 102.8 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 33.1 g of the product. (Yield: 72.1%)

[0242] 4. Synthesis of P-25

[0243]

[0244] 1) Synthesis of Sub 2-25

[0245] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-25-b (53.3 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 55.2 g of the product. (Yield: 82.0%)

[0246] 2) Synthesis of P-25

[0247] After dissolving Sub 1-1 (30.0 g, 74.7 mmol) in toluene (374 mL), Sub 2-25 (24.0 g, 74.7 mmol), Pd2(dba)3 (2.1 g, 2.2 mmol), P(t-Bu)3 (0.9 g, 4.5 mmol), and NaOt-Bu (14.4 g, 149.4 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 36.6 g of the product. (Yield: 71.4%)

[0248] 5. Synthesis of P-40

[0249]

[0250] 1) Synthesis of Sub 2-26

[0251] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-26-b (70.5 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 55.8 g of the product. (Yield: 82.9%)

[0252] 2) Synthesis of P-40

[0253] After dissolving Sub 1-15 (30.0 g, 62.0 mmol) in toluene (310 mL), Sub 2-26 (19.9 g, 62.0 mmol), Pd2(dba)3 (1.7 g, 1.9 mmol), P(t-Bu)3 (0.8 g, 3.7 mmol), and NaOt-Bu (11.9 g, 124.0 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 34.1 g of the product. (Yield: 71.5%)

[0254] 6. Synthesis of P-49

[0255]

[0256] 1) Synthesis of Sub 2-41-bc

[0257] After dissolving Sub 2-41-ba (50.0 g, 13.05 mmol) in THF (653 ml), Sub 2-41-bb (23.2 g, 130.5 mmol), Pd(PPh3)4 (9.1 g, 7.8 mmol), NaOH (15.7 g, 391.6 mmol), and water (326 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 41.5 g of the product. (Yield: 81.6%)

[0258] 2) Synthesis of Sub 2-41

[0259] Sub 2-41-bc (41.5 g, 106.6 mmol) was dissolved in DMF (533 ml), and 4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi(1,3,2-dioxaborolane) (35.2 g, 138.6 mmol), Pd(dppf)Cl2 (3.9 g, 5.3 mmol), and KOAc (31.4 g, 319.8 mmol) were added, and the mixture was stirred at 150 °C for 2 h. Upon completion of the reaction, the mixture was extracted with CH2Cl2 and water, and the organic layer was dried over MgSO4 and concentrated. The concentrate was then separated on a silica gel column and recrystallized to obtain 36.0 g of the product. (Yield: 80.2%)

[0260] 3) Synthesis of P-49

[0261] After dissolving Sub 1-1 (30.0 g, 74.7 mmol) in toluene (374 mL), Sub 2-41 (31.5 g, 74.7 mmol), Pd2(dba)3 (2.1 g, 2.2 mmol), P(t-Bu)3 (0.9 g, 4.5 mmol), and NaOt-Bu (14.4 g, 149.4 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 40.9 g of the product. (Yield: 71.2%)

[0262] 7. Synthesis of P-52

[0263]

[0264] 1) Synthesis of Sub 2-44

[0265] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-44-b (89.4 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added and the same method as the synthesis example of Sub 2-1 was carried out to obtain 69.5 g of the product. (Yield: 80.7%)

[0266] 2) Synthesis of P-52

[0267] After dissolving Sub 1-1 (30.0 g, 74.7 mmol) in toluene (374 mL), Sub 2-44 (30.7 g, 74.7 mmol), Pd2(dba)3 (2.1 g, 2.2 mmol), P(t-Bu)3 (0.9 g, 4.5 mmol), and NaOt-Bu (14.4 g, 149.4 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 41.8 g of the product. (Yield: 72.1%)

[0268] 8. Synthesis of P-61

[0269]

[0270] 1) Synthesis of Sub 2-50

[0271] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-50-b (63.8 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 63.9 g of the product. (Yield: 82.2%)

[0272] 2) Synthesis of P-61

[0273] After dissolving Sub 1-1 (30.0 g, 74.7 mmol) in toluene (374 mL), Sub 2-50 (27.7 g, 74.7 mmol), Pd2(dba)3 (2.1 g, 2.2 mmol), P(t-Bu)3 (0.9 g, 4.5 mmol), and NaOt-Bu (14.4 g, 149.4 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 39.4 g of the product. (Yield: 71.7%)

[0274] 9. Synthesis of P-78

[0275]

[0276] 1) Synthesis of Sub 2-65

[0277] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-65-b (63.8 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 63.8 g of the product. (Yield: 82.0%)

[0278] 2) Synthesis of P-78

[0279] After dissolving Sub 1-18 (30.0 g, 57.1 mmol) in toluene (285 mL), Sub 2-65 (21.2 g, 57.1 mmol), Pd2(dba)3 (1.6 g, 1.7 mmol), P(t-Bu)3 (0.7 g, 3.4 mmol), and NaOt-Bu (11.0 g, 114.1 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 35.5 g of the product. (Yield: 72.3%)

[0280] 10. Synthesis of P-100

[0281]

[0282] 1) Synthesis of Sub 1-33

[0283] After dissolving Sub 1-33-a (50.0 g, 136.9 mmol) in toluene (684 mL), Sub 1-2-b (28.6 g, 136.9 mmol), Pd2(dba)3 (3.8 g, 4.1 mmol), P(t-Bu)3 (1.7 g, 8.2 mmol), and NaOt-Bu (26.3 g, 273.7 mmol) were added, and the same method as the synthesis example of P-1 was followed to obtain 47.6 g of the product. (Yield: 70.4%)

[0284] 2) Synthesis of Sub 2-8

[0285] After dissolving Sub 2-1-a (50.0 g, 209.7 mmol) in THF (524 ml), Sub 2-8-b (63.8 g, 209.7 mmol), Pd(PPh3)4 (14.5 g, 12.6 mmol), NaOH (25.2 g, 629.1 mmol), and water (524 ml) were added, and the same method as the synthesis example of Sub 2-1 was carried out to obtain 63.5 g of the product. (Yield: 81.6%)

[0286] 3) Synthesis of P-100

[0287] After dissolving Sub 1-33 (30.0 g, 60.8 mmol) in toluene (304 mL), Sub 2-8 (22.5 g, 60.8 mmol), Pd2(dba)3 (1.7 g, 1.8 mmol), P(t-Bu)3 (0.7 g, 3.7 mmol), and NaOt-Bu (11.7 g, 121.5 mmol) were added, and the same method as the synthesis example of P-1 was carried out to obtain 36.3 g of the product. (Yield: 72.1%)

[0288] The FD-MS values ​​of compounds P-1 to P-108 of the present invention manufactured according to the above synthetic examples are as shown in Table 3 below.

[0289] Compound FD-MS Compound FD-MSP-1 m / z = 685.37 (C 52 H 47 N=685.96)P-2m / z=685.37(C 52 H 47 N=685.96)P-3m / z=741.43(C 56 H 55 N=742.06)P-4m / z=787.42(C 60 H 53 N=788.09)P-5m / z=787.42(C 60 H 53 N=788.09)P-6m / z=733.37(C 56 H 47 N=734)P-7m / z=735.39(C 56 H 49 N=736.02)P-8m / z=735.39(C 56 H 49 N=736.02)P-9m / z=735.39(C 56 H 49 N=736.02)P-10m / z=792.45(C 60 H 44 D7N=793.12)P-11m / z=743.36(C 57 H 45 N=743.99)P-12m / z=801.4(C 60 H 51 NO=802.07)P-13m / z=797.5(C60 H 63 N=798.17)P-14m / z=761.4(C 58 H 51 N=762.05)P-15m / z=893.41(C 66 H 55 NS=894.23)P-16m / z=875.54(C 66 H 69 N=876.29)P-17m / z=657.34(C 50 H 43 N=657.9)P-18m / z=685.37(C 52 H 47 N=685.96)P-19m / z=817.46(C 62 H 59 N=818.16)P-20m / z=763.42(C 58 H 53 N=764.07)P-21m / z=723.39(C 55 H 49 N=724)P-22m / z=747.39(C 57 H 49 N=748.03)P-23m / z=763.42(C 58 H 53 N=764.07)P-24m / z=837.43(C 64 H 55 N=838.15)P-25m / z=685.37(C 52 H 47 N=685.96)P-26m / z=685.37(C 52 H 47 N=685.96)P-27m / z=741.43(C 56 H 55 N=742.06)P-28m / z=697.45(C 52 H 35 D 12 N=698.03)P-29m / z=715.41(C 54 H 45 D4N=716.02)P-30m / z=741.43(C 56 H 55 N=742.06)P-31m / z=761.4(C 58 H 51 N=762.05)P-32m / z=817.46(C62 H 59 N=818.16)P-33m / z=865.46(C 66 H 59 N=866.21)P-34m / z=817.46(C 62 H 59 N=818.16)P-35m / z=761.4(C 58 H 51 N=762.05)P-36m / z=817.46(C 62 H 59 N=818.16)P-37m / z=697.45(C 52 H 35 D 12 N=698.03)P-38m / z=691.41(C 52 H 41 D6N=691.99)P-39m / z=747.47(C 56 H 49 D6N=748.1)P-40m / z=767.44(C 58 H 45 D6N=768.09)P-41m / z=735.39(C 56 H 49 N=736.02)P-42m / z=735.39(C 56 H 49 N=736.02)P-43m / z=735.39(C 56 H 49 N=736.02)P-44m / z=791.45(C 60 H 57 N=792.12)P-45m / z=735.39(C 56 H 49 N=736.02)P-46m / z=735.39(C 56 H 49 N=736.02)P-47m / z=735.39(C 56 H 49 N=736.02)P-48m / z=689.4(C 52 H 43 D4N=689.98)P-49m / z=785.4(C 60 H 51 N=786.08)P-50m / z=785.4(C 60 H 51N=786.08)P-51m / z=861.43(C 66 H 55 N=862.17)P-52m / z=775.38(C 58 H 49 NO=776.04)P-53m / z=791.36(C 58 H 49 NS=792.1)P-54m / z=774.4(C 58 H 50 N2=775.05)P-55m / z=785.4(C 60 H 51 N=786.08)P-56m / z=785.4(C 60 H 51 N=786.08)P-57m / z=763.42(C 58 H 53 N=764.07)P-58m / z=811.42(C 62 H 53 N=812.11)P-59m / z=761.4(C 58 H 51 N=762.05)P-60m / z=711.39(C 54 H 49 N=711.99)P-61m / z=735.39(C 56 H 49 N=736.02)P-62m / z=785.4(C 60 H 51 N=786.08)P-63m / z=809.4(C 62 H 51 N=810.1)P-64m / z=959.45(C 74 H 57 N=960.28)P-65m / z=987.48(C 76 H 61 N=988.33)P-66m / z=911.45(C 70 H 57 N=912.23)P-67m / z=865.46(C 66 H 59 N=866.21)P-68m / z=947.41(C 72 H 53 NO=948.22)P-69m / z=919.42(C 71 H 53N=920.21)P-70m / z=885.43(C 68 H 55 N=886.19)P-71m / z=841.46(C 64 H 47 D6N=842.17)P-72m / z=847.42(C 65 H 53 N=848.15)P-73m / z=961.46(C 74 H 59 N=962.29)P-74m / z=865.46(C 66 H 59 N=866.21)P-75m / z=885.43(C 68 H 55 N=886.19)P-76m / z=881.4(C 68 H 51 N=882.16)P-77m / z=859.42(C 66 H 53 N=860.16)P-78m / z=859.42(C 66 H 53 N=860.16)P-79m / z=859.42(C 66 H 53 N=860.16)P-80m / z=831.39(C 64 H 49 N=832.1)P-81m / z=909.43(C 70 H 55 N=910.22)P-82m / z=983.45(C 76 H 57 N=984.3)P-83m / z=933.43(C 72 H 55 N=934.24)P-84m / z=1061.5(C 82 H 63 N=1062.41)P-85m / z=807.39(C 62 H 49 N=808.08)P-86m / z=832.38(C 63 H 48 N2=833.09)P-87m / z=807.39(C 62 H 49 N=808.08)P-88m / z=987.44(C 75 H 57NO=988.29)P-89m / z=829.37(C 64 H 47 N=830.09)P-90m / z=929.4(C 72 H 51 N=930.21)P-91m / z=883.42(C 68 H 53 N=884.18)P-92m / z=993.56(C 74 H 72 FN=994.4)P-93m / z=929.4(C 72 H 51 N=930.21)P-94m / z=895.42(C 69 H 53 N=896.19)P-95m / z=939.48(C 72 H 61 N=940.29)P-96m / z=813.42(C 62 H 43 D6N=814.12)P-97m / z=777.43(C 59 H 55 N=778.1)P-98m / z=853.46(C 65 H 59 N=854.19)P-99m / z=859.5(C 65 H 53 D6N=860.23)P-100m / z=827.45(C 63 H 57 N=828.16)P-101m / z=857.49(C 65 H 51 D6N=858.21)P-102m / z=825.43(C 63 H 55 N=826.14)P-103m / z=915.57(C 69 H 61 D6N=916.34)P-104m / z=869.5(C 66 H 63 N=870.24)P-105m / z=697.45(C 52 H 35 D 12 N=698.03)P-106m / z=697.45(C 52 H 35 D 12 N=698.03)P-107m / z=748.48(C56 H 48 D7N=749.11)P-108m / z=795.47(C 60 H 49 D6N=796.14)

[0290] Although the above has been described with respect to exemplary synthetic examples of the present invention represented by Chemical Formula 1, these are all based on Buchwald-Hartwig cross coupling reaction, Miyaura boration reaction, Suzuki cross-coupling reaction, Intramolecular acid-induced cyclization reaction (J. mater. Chem. 1999, 9, 2095), Pd(II)-catalyzed oxidative cyclization reaction (Org. Lett. 2011, 13, 5504), and PPh3-mediated reductive cyclization reaction (J. Org. Chem. 2005, 70, 5014), and it will be easily understood by those skilled in the art that the above reaction proceeds even if a substituent other than the substituent specified in the specific synthetic example is combined with another substituent defined in Chemical Formula 1.

[0291] Manufacturing and evaluation of organic electronic devices

[0292] [Example 1] Red organic light-emitting device (luminescent auxiliary layer)

[0293] N-([1,1'-biphenyl]-4-yl)-9,9-dimethyl-N-(4-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-fluoren-2-amine (hereinafter referred to as compound A) and 4,4',4"-((1E,1'E,1"E)-cyclopropane-1,2,3-triylidenetris(cyanomethaneylylidene))tris(2,3,5,6-tetrafluorobenzonitrile) (hereinafter referred to as compound B) are vacuum-deposited on an ITO layer (anode) formed on a glass substrate to form a hole injection layer having a thickness of 10 nm. At this time, compound B is doped so that the weight ratio of compound A and compound B is 98:2.

[0294] Afterwards, compound A is vacuum-deposited on the hole injection layer to form a hole transport layer with a thickness of 110 nm.

[0295] Thereafter, the compound P-1 of the present invention is vacuum-deposited on the hole transport layer to form a light-emitting auxiliary layer having a thickness of 10 nm.

[0296] Thereafter, a host 14-(4-phenylquinazolin-2-yl)-14H-benzo[c]benzo[4,5]thieno[2,3-a]carbazole and a dopant bis-(1-phenylisoquinolyl)iridium(Ⅲ)acetylacetonate (hereinafter abbreviated as '(piq)2Ir(acac)') are vacuum-deposited on the light-emitting auxiliary layer to form a light-emitting layer with a thickness of 30 nm. At this time, the dopant is doped so that the weight ratio of the host and the dopant becomes 95:5.

[0297] Afterwards, 2-(4'-(9,9-dimethyl-9H-fluoren-2-yl)-[1,1'-biphenyl]-3-yl)-4,6-diphenyl-1,3,5-triazine is vacuum-deposited on the light-emitting layer to form a hole-blocking layer with a thickness of 10 nm.

[0298] Afterwards, a mixture of 2,7-bis(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)naphthalene and (8-quinolinolato)lithium in a weight ratio of 5:5 is vacuum-deposited on the hole-blocking layer to form an electron transport layer with a thickness of 30 nm.

[0299] Afterwards, a compound (8-quinolinolato)lithium is vacuum-deposited on the electron transport layer to form an electron injection layer with a thickness of 0.2 nm, and then Al is deposited to form a cathode with a thickness of 150 nm.

[0300] [Example 2] to [Example 25]

[0301] An organic light-emitting device was manufactured in the same manner as Example 1, except that the compound of the present invention described in Table 4 below was used instead of the compound P-1 of the present invention as a light-emitting auxiliary layer material.

[0302] [Comparative Example 1] and [Comparative Example 4]

[0303] An organic light-emitting device was manufactured in the same manner as Example 1, except that one of the following comparative compounds A to D was used instead of the compound P-1 of the present invention as the light-emitting auxiliary layer material.

[0304] Comparative Compound A <Comparative Compound B>

[0305]

[0306] Comparative Compound C Comparative Compound D

[0307]

[0308] The organic electroluminescence devices manufactured by Examples 1 to 25 of the present invention and Comparative Examples 1 to 4 were subjected to a forward bias DC voltage, and the electroluminescence (EL) characteristics were measured using PR-650 from Photoresearch, and 2500 cd / m 2T95 was measured using a life-span measuring device manufactured by Maxscience at a reference luminance. The measurement results are shown in Table 4 below.

[0309] These measuring devices are unaffected by daily variations in deposition rate, vacuum quality, or other parameters, and can evaluate new performance compared to reference compounds under identical conditions. Since each batch contains four identically prepared OLEDs containing the reference compound, and the performance of a total of 12 OLEDs is evaluated in three batches, the experimental results obtained in this manner are statistically significant.

[0310] Compound driving voltage current (mA / cm) 2 ) Luminance (cd / m 2) Efficiency (cd / A) T (95) Comparative Example 1 Comparative Compound A 5.1 14.9 2500.0 16.8 9 1.3 Comparative Example 2 Comparative Compound B 5.2 14.5 2500.0 17.3 9 2.2 Comparative Example 3 Comparative Compound C 5.4 16.4 2500.0 15.2 9 5.2 Comparative Example 4 Comparative Compound D 5.5 15.5 2500.0 16.1 9 7.1 Example 1 P-14.16 6 2500.0 38.0 1 27.3 Example 2 P-7 4.26 6 2500.0 37.6 1 27.6 Example 3 P-8 4.16 8 2500.0 36.7 1 26.8 Example 4P-94.16.62500.037.8126.3 Example 5P-114.37.12500.035.4123.1 Example 6P-124.78.32500.030.1110.6 Example 7P-154.68.22500.030.4110.8 Example 8P-204.17.12500.035.2120.3 Example 9P-214.16.82500.036.8120.7 Example 10P-254.26.42500.039.1125.6 Example 11P-264.16.32500.039.4121.4 Example 12P-304.16.52500.038.5129.5 Example 13P-344.16.42500.039.0128.7 Example 14P-364.16.52500.038.2128.5 Example 15P-404.26.52500.038.3127.3 Example 16P-464.17.12500.035.3124.2 Example 17P-574.16.62500.037.7128.6 Example 18P-594.36.62500.038.1128.7 Example 19P-674.37.62500.033.0114.3Example 20P-704.47.42500.033.9113.2Example 21P-734.47.92500.031.5117.5Example 22P-814.57.42500.033.6115.3Example 23P-904.37.92500.031.8114.0Example 24P-984.47.52500.033.5113.5Example 25P-1054.26.52500.038.2128.8

[0311] From the above Table 4, it can be seen that when the compound of the present invention is used as a light-emitting auxiliary layer material, the driving voltage of the organic light-emitting device is significantly lowered and the efficiency and lifespan are significantly improved compared to when one of the comparative compounds A to D (Comparative Examples 1 to 4) is used. Comparative compounds A to D are similar to the compound of the present invention in that they are tertiary amine compounds having two substituents including a fluorene skeleton in the molecule, but the forms of the remaining substituents are different from those of the compound of the present invention.

[0312] Comparative compound A is a biphenyl in which one of the substituents of the amine is substituted with adamantyl, Ar a -Ar b If all are phenyl, the compound of the present invention differs from the present invention in that it is a terphenyl substituted with adamantyl.

[0313] Comparative Compound B differs in that the terphenyl is composed entirely of 1,4-phenylene, while the compound of the present invention is a terphenyl containing 1,2-phenylene.

[0314] Comparative compounds C and D are similar in that one of the substituents of the amine is a substituent having a terphenyl skeleton containing 1,2-terphenylene, but among the substituents constituting the terphenyl, R 5 or Ar b It differs from the present invention in that a ring including a pentagonal ring is further formed.

[0315] First, in order to examine the influence of the difference between biphenyl and terphenyl, HOMO was measured for comparative compound A and the compound P-57 of the present invention, which has the most similar structure, using the DFT method (B3LYP / 6-31g(D)) of the Gaussian program. The measurement results are shown in Table 5 below.

[0316] Comparative Compound AP-57 HOMO(eV)-4.709-4.713

[0317] As can be seen in Table 5 above, the HOMO Energy Level (hereinafter, HOMO) value of the compound P-57 of the present invention is smaller (deep) than that of the comparative compound A. Therefore, when the compound of the present invention is used as a material for a light-emitting auxiliary layer, hole transfer from the light-emitting auxiliary layer to the light-emitting layer is easier than that of the comparative compound A, so that hole accumulation in the device can be reduced, thereby increasing the charge balance in the light-emitting layer. As a result, it appears that the efficiency and lifespan of the device are significantly improved when the compound of the present invention is used as a material for a light-emitting auxiliary layer.

[0318] In addition, from a structural perspective, the conjugation length of the terphenyl of the compound of the present invention is longer than that of the biphenyl of the comparative compound A, so the hole injection characteristics within the device also appear to be superior.

[0319] Next, in order to determine the influence of the substitution position of the phenylene group forming the terphenyl skeleton, the Hole Small Polaron Stabilization Energy (unit: eV, hereinafter abbreviated as HSPSE) of Comparative Compound B and Compound P-59 of the present invention, which has the most similar structure to Compound B, was measured using molecular simulation (Schrodinger Materials Science Suite 4.9.128). The measurement results are shown in Table 6 below.

[0320] Comparative compound BP-59HSPSE(eV)0.0770.055

[0321] As can be seen in Table 6 above, it can be seen that the HSPSE value of the compound P-59 of the present invention is formed significantly lower than the HSPSE of the comparative compound B. Therefore, when the compound of the present invention is used as a light-emitting auxiliary layer material, it appears that the stability of the structure itself increases and the lifespan of the device is improved as a result because less energy is required from the time holes are generated to the time they are stabilized. In addition, when a terphenyl containing 1,2-phenylene is included, as in the compound of the present invention, the packing density decreases as an ortho substituent is introduced, and thus the structural thermal stability also appears to be improved.

[0322] Finally, among the substituents that constitute terphenyl, R 5 or Ar b In order to investigate the influence of the formation of more rings including a pentagonal ring, the dipole momonet of comparative compound C, comparative compound D, and compound P-1 of the present invention having the most similar structure were measured using the DFT method (B3LYP / 6-31g(D)) of the Gaussian program. The measurement results are shown in Table 7 below.

[0323] Comparative Compound Compound C Comparative Compound DP-1 Dipole moment(D) 0.3320.7220.802

[0324] From the above Table 7, it can be confirmed that the dipole moment values ​​of Comparative Compounds C and D and Compound P-1 of the present invention are significantly different. Therefore, it appears that the compound of the present invention has a stronger van der Waals interaction within the molecule, and thus, when used as a light-emitting auxiliary layer material, the mobility of holes is improved compared to the comparative compounds, thereby improving the charge balance and, as a result, improving the performance of the device. From the above Tables 4 to 7, it can be seen that when the compound of the present invention is used as a light-emitting auxiliary layer material instead of Comparative Compounds A to D having a structurally similar structure to the compound of the present invention, the performance of the device is significantly improved. Therefore, it can be confirmed that the compound of the present invention, which satisfies all complex factors such as the type of substituent and the substitution position, exhibits a remarkable effect compared to other comparative compounds in an organic electric device, and through this, it can be seen that the compound of the present invention exhibits a remarkable effect in an organic electric device compared to other compounds having a similar structure not described herein.

[0325] Through this, it can be seen that even when compounds with similar structures are used as hosts, the properties of the compound, such as hole characteristics, light efficiency characteristics, energy level, hole injection and mobility characteristics, charge balance of holes and electrons, volume density, and intermolecular distance, can differ depending on the type of substituent, the substitution position of the substituent, etc., and the performance of the device can differ significantly due to these differences.

[0326] In the case of a light-emitting auxiliary layer, the relationship between the hole transport layer and the light-emitting layer (host) must be understood. Therefore, even if a similar core is used, it would be very difficult for even a person skilled in the art to infer the characteristics exhibited by the light-emitting auxiliary layer using the compound of the present invention.

[0327] In the evaluation of the above-described device fabrication, the device characteristics were described when the compound of the present invention was applied only to the light-emitting auxiliary layer, but the compound of the present invention may be applied to the hole transport layer or may be applied to both the hole transport layer and the light-emitting auxiliary layer.

[0328] The above description is merely illustrative of the present invention. Those skilled in the art will appreciate that various modifications may be made without departing from the essential characteristics of the present invention. The scope of protection of the present invention should be construed in accordance with the claims below, and all techniques within the scope equivalent thereto should be construed as being included within the scope of the present invention.

Claims

1. A compound represented by the following chemical formula 1: <Chemical Formula 1> In the above chemical formula 1, R 1 Inland R 5 are independently hydrogen; deuterium; halogen; cyano group; nitro group; C6~C 60 Aryl group of; Fluorenyl group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of ; C3~C 60 Aliphatic ring group; C6~C 60 Aromatic ring and C3~C 60 A fused ring group of an aliphatic ring; C1~C 20 Alkyl group of; C2~C 20 Alkenyl group of ; C2~C 20 Alkyne group of ; C1~C 20 Alkoxy group of; and C6~C 60 is selected from the group consisting of aryloxy groups, and adjacent groups can be combined with each other to form a ring, provided that adjacent R 5 Except when they combine with each other to form a ring, a, d and e are each integers from 0 to 4, b and c are each integers from 0 to 3, R a Inland R d are independently of each other, C1~C 20 Alkyl group of; C6~C 60 Aryl group of; Fluorenyl group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of ; C3~C 60 Aliphatic ring group of; and C6~C 60 Aromatic ring and C3~C 60 It is selected from the group consisting of fused ring groups of aliphatic rings, and adjacent groups can combine with each other to form a ring, Ar a is C6~C 60 Arylene group; Fluorenylene group; C2~C containing at least one heteroatom among O, N, S, Si and P 60 Heterocyclic group of ; and C6~C 60 Aromatic ring and C3~C 60 is selected from the group consisting of fused ring groups of aliphatic rings, Ar b C6~C, which consists of only 6 circles 60 Aryl group of; or C2~C consisting of only 6 members including at least one heteroatom among O, N, S, Si and P 60 is a heterocyclic group, But, Ar a and Ar b is a single ring structure or a condensed ring structure, and Ar a and Ar b At least one of them is replaced by Ak, The above Ak is C1~C 20 Alkyl group of; or C3~C 60 It is a fatty acid ring, R 1 Inland R 5 , R a Inland R d , Ar a and Ar b are respectively deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; Cyano group; Nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C 30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 Alkyl group of; C2-C 20 Alkenyl group of ; C2-C 20 Alkyne group of ; C6-C 30 Aryl group of; Fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 It can be substituted with one or more substituents selected from the group consisting of heterocyclic groups, and the adjacent substituents can be combined with each other to form a ring, and the hydrogen of the substituent can be replaced with deuterium, provided that, Ar a When Ar is substituted with a ring structure among the above substituents, the ring is a single ring structure or a condensed ring structure, and b When the above substituents are substituted with a ring structure, the ring is a six-membered monocyclic structure or a condensed ring structure composed only of six members.

2. In paragraph 1, The above chemical formula 1 is a compound characterized by being represented by one of the following chemical formulas 1-1 to 1-3: <Chemical Formula 1-1> <Chemical Formula 1-2> <Chemical Formula 1-3> In the above chemical formulas 1-1 to 1-3, R 1 Inland R 5 , R a Inland R d , Ak, a to e are as defined in paragraph 1.

3. In paragraph 1, Above Ar a is the chemical formula Ar a -1 to chemical formula Ar a A compound characterized by being selected from the group consisting of -16: <화학식 Ar a -1> <화학식 Ar a -2> <화학식 Ar a -3> <화학식 Ar a -4> <화학식 Ar a -5> <화학식 Ar a -6> <화학식 Ar a -7> <화학식 Ar a -8> <화학식 Ar a -9> <화학식 Ar a -10> <화학식 Ar a -11> <화학식 Ar a -12> <화학식 Ar a -13> <화학식 Ar a -14> <화학식 Ar a -15> <화학식 Ar a -16> The chemical formula Ar above a -1 to Ar a In -16, R 6 Inland R 14 are independently hydrogen; deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; Cyano group; Nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C 30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 Alkyl group of; C2-C 20 Alkenyl group of ; C2-C 20 Alkyne group of ; C6-C 30 Aryl group of; Fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, and adjacent groups can be bonded to each other to form a ring, and the hydrogen of the substituent can be replaced with deuterium, provided that R 6 Inland R 14 If the ring structure is a ring structure, the ring is a single ring structure or a condensed ring structure, Z is O, S, C(R e )(R f ) or N(Ar 1 ) and, however, Ara-15 and Ara-16 are phenylene or Ar through Z. b If connected to, Z is N, R e , R f , Ar 1 are independently C1-C 20 Alkyl group of; C6-C 30 Aryl group of; C6-C substituted with deuterium 30 Aryl group of; Fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, R e Wow R f can combine with each other to form rings, f, h, j, k, m, and n are each integers from 0 to 4, g is an integer from 0 to 6, and i and l are each integers from 0 to 2.

4. In paragraph 1, Above Ar b is the chemical formula Ar b -1 to chemical formula Ar b A compound characterized by being selected from the group consisting of -8: <화학식 Ar b -1> <화학식 Ar b -2> <화학식 Ar b -3> <화학식 Ar b -4> <화학식 Ar b -5> <화학식 Ar b -6> <화학식 Ar b -7> <화학식 Ar b -8> The chemical formula Ar above b -1 to chemical formula Ar b In -8, R 15 Inland R 17 are independently hydrogen; deuterium; halogen; C1-C 20 Alkyl group or C6-C 20 Silane group substituted or unsubstituted with aryl group; C1-C 20 Alkyl group or C6-C 20 Phosphine oxide substituted or unsubstituted with an aryl group; Cyano group; Nitro group; C1-C 20 Alkylthio group of; C1-C 20 Alkoxy group of; C6-C 30 Aryloxy group of; C6-C 30 Arylthio group of; C1-C 20 Alkyl group of; C2-C 20 Alkenyl group of ; C2-C 20 Alkyne group of ; C6-C 30 Aryl group of; Fluorenyl group; C3-C 30 Aliphatic ring group; C6-C 30 Aromatic ring and C3-C 30 A fused ring group of an aliphatic ring; and C2-C containing at least one heteroatom among O, N, S, Si and P. 30 is selected from the group consisting of heterocyclic groups, and adjacent groups can be bonded to each other to form a ring, and the hydrogen of the substituent can be replaced with deuterium, provided that R 15 Inland R 17 In the case of this ring structure, the ring is a single six-membered monocyclic structure or a condensed ring structure composed of only six members, o is an integer from 0 to 5, p is an integer from 0 to 7, and q is an integer from 0 to 9.

5. In paragraph 1, The above Ak is a compound characterized in that it is selected from the group consisting of the following chemical formulas Ak-1 to Ak-8: <Chemical Formula Ak-1> <Chemical Formula Ak-2> <Chemical Formula Ak-3> <Chemical Formula Ak-4> <Chemical Formula Ak-5> <Chemical Formula Ak-6> <Chemical Formula Ak-7> <Chemical Formula Ak-8> In the above chemical formulas Ak-1 to Ak-8, hydrogen can be replaced with deuterium.

6. In paragraph 1, A compound represented by the above chemical formula 1 is characterized in that it is one of the following compounds: .

7. In an organic electric device including a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, An organic electric device, characterized in that the organic layer comprises the compound of claim 1.

8. In paragraph 7, An organic electric device characterized in that the organic layer includes a light-emitting auxiliary layer, and the light-emitting auxiliary layer includes the compound of claim 1.

9. In paragraph 7, An organic electric device characterized in that the organic layer includes two or more stacks including a hole transport layer, a light-emitting layer, and an electron transport layer sequentially formed on the first electrode.

10. A display device including the organic electric element of clause 7; and An electronic device including a control unit that drives the display device.

11. A step of depositing an organic layer material including a compound represented by the chemical formula 1 of paragraph 1; A step of recovering the organic layer material attached to the deposition equipment; and A method for recovering a compound, characterized by including a step of purifying the recovered organic layer material to obtain a compound represented by the chemical formula 1 having a purity of 99.9% or higher.

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