10488 results about "Substituent" patented technology

The triazinewherein Ar1, Ar2, Ar3, and Ar4 are each independently an aryl; R1 and R2 are substituents selected from the group consisting of hydrogen, an alkyl, an aryl, an alkoxy, a halogen atom, and a cyano; R3 and R4 are each a divalent group L selected from the group consisting of -C(R'R'')-, alkylene, an oxygen atom, a sulfur atom, and -Si(R'R'')-, wherein R' and R'' are selected from the group consisting of hydrogen, alkyl, alkoxy, and aryl.

Provision of a novel platinum complex which is useful as a material for a light-emitting device of good light emission characteristic and light emission efficiency, and a novel light-emitting material that may be utilized in various fields.

A platinum complex represented by the following general formula (1):

(in which two rings of ring A, ring B, ring C, and ring D represent nitrogen-containing heterocyclic rings which may have a substituent and the remaining two rings of them represent aryl rings or hetero aryl rings which may have a substituent, the ring A and the ring B, the ring A and the ring C or/and the ring B and the rind D may form condensed rings. Two of X¹, X², X³, and X⁴ represent nitrogen atoms coordination bonded to a platinum atom and the remaining two of them represent carbon atoms or nitrogen atoms. Q¹, Q², and Q³ each represents a bond, oxygen atom, sulfur atom or bivalent group, two of Z¹, Z², Z³, and Z⁴ represent coordination bonds, and the remaining two of them represent covalent bonds, oxygen atoms or sulfur atoms), and a light-emitting device containing the platinum complex.

An OLED device comprises an anode, a cathode and therebetween a light emitting layer containing a compound represented by Formula I below:

wherein: each A is independently selected from N and P; each E is independently selected from N, P, and As;

each Z is a radical independently selected from

each R is an independently selected substituent; and each R′ is independently selected from H and a substituent; provided that two substituent groups can join to form a ring.

An OLED device comprising a cathode, an anode, and having located therebetween a light emitting layer containing an emitting compound having formula (I):

(piq)_b M ppy   (I)

wherein piq is a phenylisoquinoline group and ppy is a phenylpyridine group bearing at least one further substituent on the pyridine ring, wherein M is Ir, Rh, Pt, or Pd and b is 2 in the case of Ir and Rh and 1 in the case of Pt and Pd.

An OLED device comprises a cathode, a light emitting layer and an anode, in that order, wherein

(i) the light-emitting layer comprises up to 10 volume % of a light emitting compound and at least one anthracene host compound of Formula (3):

wherein

• • W₁-W₁₀ independently represents hydrogen or an independently selected substituent, and (ii) a further layer located between the cathode and the light emitting layer, contains (a) 10-volume % or more of an anthracene compound of Formula (3) and (b) at least one salt or complex of an element selected from Group IA, IIA, IIIA and IIB of the Periodic Table. Such devices exhibit reduced drive voltage while maintaining good luminance.

The present invention relates to a novel organometallic compound, and more particularly, to a luminescent organometallic compound in which intermolecular interaction is inhibited by means of introducing a germanium substituent, thereby improving light-emitting characteristics. The present invention also relates to an organic electronic device, specifically, to an organic light-emitting diode using the compound. According to the present invention, a germanium substituent is introduced to the parent organometallic iridium compound, thus inhibiting an intermolecular interaction in the solid state and enabling the compound of the present invention to be effectively used in solution processing. When the compound of the present invention is used as part of a light-emitting layer of an organic light-emitting diode, the light-emitting efficiency of the light-emitting diode may be significantly improved. Therefore, the compound of the present invention may be effectively used as a material for an organic light-emitting diode.

The present invention provides a stable new condensed polycyclic compound which is not likely to form a molecular association. In addition, the present invention also provides an organic light-emitting element having a high light-emitting efficiency and a low drive voltage. In the condensed polycyclic compound in Claim 1 represented by the general formula [1], R1, R2 and R5 are each independently selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an aryl group, and a heterocyclic group. R3 and R4 each represent an alkyl group having 1 to 4 carbon atoms. The aryl group and the heterocyclic group each may have at least one of an alkyl group, an aralkyl group, an aryl group, a heterocyclic group, an amino group, and an alkoxy group as a substituent.

A novel nitrogen-containing heterocyclic compound having an electron-attracting substituent and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer which comprises a single layer or a plurality of layers comprising at least a light emitting layer and is disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the above nitrogen-containing heterocyclic derivative singly or as a component of a mixture. The organic electroluminescence device exhibits a great efficiency of light emission and has a long life.

The present invention relates to a new method for the synthesis of purine LNA (Locked Nucleic Acid) analogues which provides a higher overall yield. The method comprising a regioselective 9-N purine glycosylation reaction followed by a one-pot nucleophilic aromatic substitution reaction of the 6-substituent in the purine ring and simultaneous nucleophile-induced intramolecular ring closure of the C-branched carbohydrate to form novel purine LNA analogues. The novel strategy is illustrated by the synthesis of the novel compound (1S,3R,4R,7S)-7-benzyloxy-1-methanesulfonylmethyl-3-(guanin-9-yl)-2,5-dioxabicyclo[2.2.1]heptane which is easily converted into (1S,3R,4R,7S)-7-hydroxy-1-hydroxymethyl-3-((2-N-isobutyrylguanin-9-yl)-2,5-dioxabicyclo[2.2.1]heptane after isobutyryl protection of the 2-amino purine group and subsequent substitution of 1-methanesulfonyl with benzoate, debenzoylation and debenzylation.

A charge-transporting material contains a compound represented by the following formula (1) in an organic layer, in which the contents of specific halogen-containing compounds are 0.1% or less to the compound represented by formula (1). In formula (1), each of A¹ and A² independently represents N, —CH or —CR; R represents a substituent; L represents a single bond, an arylene group, a cycloalkylene group or an aromatic heterocyclic group; each of R¹ to R⁵ independently represents a substituent; each of n1, n2 and n3 independently represents an integer of 0 to 4; each of n4 and n5 independently represents an integer of 0 to 5; and each of p and q independently represents an integer of 1 to 4.

Provided is an organic thin film light emitting element which has achieved all of improved luminous efficiency, improved driving voltage and improved durability life. Specifically provided is a light emitting element which comprises a hole transport layer and an electron transport layer between a positive electrode and a negative electrode and emits light by means of electrical energy. The light emitting element is characterized in that: the hole transport layer of the light emitting element contains a compound represented by general formula (1); the electron transport layer contains a donor compound; and the donor compound is an alkali metal, an inorganic salt containing an alkali metal, a complex of an alkali metal and an organic substance, an alkaline earth metal, an inorganic salt containing an alkaline earth metal, or a complex of an alkaline earth metal and an organic substance. (In the formula, R¹-R²⁰ each represents one group selected from the group consisting of hydrogen, deuterium, an alkyl group, a cycloalkyl group, an amino group, an aryl group, a heterocyclic group, a heteroaryl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, analkoxy group, an alkylthio group, an arylether group, an arylthioether group, a halogen, a cyano group, a —P(═O)R²⁴R²⁵ group and a silyl group; R²⁴ and R²⁵ each represents an aryl group or a heteroaryl group; and these substituents may be further substituted, or adjacent two substituents may combine together to form a ring. Meanwhile, R²¹-R²³ may be the same or different and each represents one group selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a heteroaryl group; and these substituents maybe further substituted.)

An OLED device comprises a cathode, a light emitting layer and an anode, in that order, and comprises; (i) a further layer located between the cathode and the light emitting layer, containing (a) 10 vol % or more of a carbocyclic fused ring aromatic compound, and (b) at least one salt or complex of a Group IA, IIA, IIIA and IIB element of the Periodic Table, and

(ii) an additional layer, located between the anode and the light emitting layer, containing a compound of Formula (8)

wherein: each R independently represents hydrogen or an independently selected substituent, at least one R representing an electron-withdrawing substituent having a Hammett's sigma para value of at least 0.3. Such devices exhibit reduce drive voltage while maintaining good luminance.

A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, where said pseudo-living polymer is characterized by having greater than about 85 percent of the polymer in the cis microstructure and less than about 3 percent of the polymer is in the 1,2- or 3,4-microstructure, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) or (II)

where Z is a substituent that will react or interact with organic or inorganic fillers; R¹ is a single bond or a divalent organic group; R² is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R¹³ or R¹⁴; R³ is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R⁴ or R⁵; R¹³ is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R² or R¹⁴; R⁴ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R³ or R⁵; R¹⁴ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R² or R¹³; and R⁵ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R³ or R⁴; with the proviso that each group attached to the imino carbon is attached via a carbon atom and R¹, R², R³, R⁴, R⁵, R¹³, R¹⁴ and Z are substituents that will not protonate a pseudo-living polymer.

Nanoporous silicone resins and silicone resin films having low dielectric constants and a method for preparing such nanoporous silicone resins. The silicone resin comprises the reaction product of a mixture comprising(A) 15-70 mol % of a tetraalkoxysilane described by formula where each R1 is an independently selected alkyl group comprising 1 to about 6 carbon atoms,(B) 12 to 60 mol % of a hydrosilane described by formula where each X is an independently selected hydrolyzable substituent,(C) 15 to 70 mole percent of an organotrialkoxysilane described by formula where R2 is a hydrocarbon group comprising about 8 to 24 carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8 to 24 carbon atoms and each R3 is an independently selected alkyl group comprising 1 to about 6 carbon atoms; in the presence of(D) water,(E) hydrolysis catalyst, and(F) organic solvent for the reaction product.The silicone resin is cured and heated in an inert atmosphere at a temperature sufficient to effect thermolysis of carbon-carbon bonds of the R2 groups thereby forming a nanoporous silicone resin.

Oligomeric compounds including oligoribonucleotides and oligoribonucleosides are provided that have subsequences of 2′-pentoribofuranosyl nucleosides that activate dsRNase. The oligoribonucleotides and oligoribonucleosides can include substituent groups for increasing binding affinity to complementary nucleic acid strand as well as substituent groups for increasing nuclease resistance. The oligomeric compounds are useful for diagnostics and other research purposes, for modulating the expression of a protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to oligonucleotide therapeutics. Also included in the invention are mammalian ribonucleases, i.e., enzymes that degrade RNA, and substrates for such ribonucleases. Such a ribonuclease is referred to herein as a dsRNase, wherein “ds” indicates the RNase's specificity for certain double-stranded RNA substrates. The artificial substrates for the dsRNases described herein are useful in preparing affinity matrices for purifying mammalian ribonuclease as well as non-degradative RNA-binding proteins.

An electrolyte composition comprising a compound represented by the following general formula (1):wherein R represents a substituent containing a -(CR1R2-CR3R4-O)n- bond (in which R1 to R4 are independently a hydrogen atom or an alkyl group, n being an integer of 2 to 20); Q represents an atomic group forming an aromatic cation having a 5- or 6-membered ring structure with a nitrogen atom, which may have a substituent; and X- represents an anion. A photoelectric conversion device comprising the electrolyte composition and a photo-electrochemical cell composed thereof are also provided.

A compound represented by formula (I) below:

A luminescence device is principally constituted by a pair of electrodes and an organic compound layer disposed therebetween. The layer contains a metal coordination compound represented by the following formula (1): wherein M denotes Ir, Rh or Pd; n is 2 or 3; and X1 to X8 independently denote hydrogen atom or a substituent selected from the group consisting of halogen atom; nitro group; trifluoromethyl group trialkylsilyl group having three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 2-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with -O-, -S-, -CO-, -CO-O-, -O-CO-, -CH=CH- or -C=C- and capable of including hydrogen atom which can be replaced with fluorine atom; with the proviso that at least one of X1 to X8 is a substituent other than hydrogen atom, and X2 and X3 cannot be fluorine atom at the same time.

Melanocortin receptor-specific compounds of the general formulas

and pharmaceutically acceptable salts thereof, where J is a substituted or unsubstituted monocyclic or bicyclic ring structure, L is a linker, W is a heteroatom unit with at least one cationic center, hydrogen bond donor or hydrogen bond acceptor, Q includes a substituted or unsubstituted aromatic carbocyclic ring, R₆, R₇, y and z are as defined in the specification, and the carbon atom marked with an asterisk can have any stereochemical configuration, and optionally with one or two additional ring substituents as defined, which compounds bind to one or more melanocortin receptors and are optionally an agonist, a partial agonist, an antagonist, an inverse agonist or an antagonist of an inverse agonist, and may be employed for treatment of one or more melanocortin receptor-associated conditions or disorders, and methods for the use of the compounds of the invention.

A material for electroluminescence devices comprising an aromatic amine derivative having a specific structure having bulky substituents at end portions and an organic electroluminescence device comprising an organic thin film layer which comprises a single layer or a plurality of layers comprising at least a light emitting layer and is disposed between an anode and a cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices singly or as a component of a mixture. The electroluminescence device having a long life and exhibiting a great luminance of emitted light and a great efficiency of light emission can be obtained by using the material.