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Compound taking dibenzo five-membered heterocycle as core and application thereof

A five-membered heterocycle and compound technology, applied in the field of semiconductors, can solve the problems of different performances and achieve the effects of stable three-dimensional structure, improved injection and transmission performance, and not easy to rotate

Pending Publication Date: 2021-07-16
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, for the collocation of OLED devices with different structures, the photoelectric functional materials used have strong selectivity, and the performance of the same material in devices with different structures may be completely different.

Method used

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  • Compound taking dibenzo five-membered heterocycle as core and application thereof
  • Compound taking dibenzo five-membered heterocycle as core and application thereof
  • Compound taking dibenzo five-membered heterocycle as core and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] The synthesis of embodiment 1 compound 1:

[0090]

[0091] Add 0.01mol of intermediate D-1 and 0.012mol of raw material E-1 to 120mL of toluene:ethanol=2:1 mixed solvent, add 0.02mol of potassium carbonate, add 0.0002mol of Pd(PPh 3 ) 4 , reacted at 110°C for 48 hours under a nitrogen atmosphere, took a sample and spotted the plate, and after the reactants were completely reacted, cooled and filtered, the filtrate was rotary evaporated to remove the solvent, and the crude product was passed through a silica gel column to obtain compound 1; HPLC purity 98.97%, yield Yield 78.5%; element analysis structure (C 46 h 27 N 3 o 3 ) Theoretical value: C, 82.50; H, 4.06; N, 6.27; Tested value: C, 82.51; H, 4.08; N, 6.29. LC-MS: Theoretical: 669.21, Found: 669.25.

[0092] Repeat the preparation process of Example 1 to synthesize the following target compounds; the reaction conditions are the same, except that intermediate D and raw material E listed in the following ta...

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Abstract

The invention discloses a compound taking a dibenzo five-membered heterocycle as a core and an application of the compound, and belongs to the technical field of semiconductors. The structure of the compound provided by the invention is as shown in a general formula (1). The compound provided by the invention contains a dibenzo five-membered heterocyclic parent nucleus structure, and has appropriate HOMO and LUMO energy levels and relatively high Eg and triplet state energy level (T1). The compound provided by the invention also has relatively high glass transition temperature and molecular thermal stability; when the compound is used as a light-emitting layer or hole blocking or electron transport layer material of an OLED light-emitting device, the three-dimensional property of the structure can be effectively improved by matching with the branched chains in the range of the material; the whole molecular steric hindrance is large, rotation is not easy, and the chemical stability of the material is improved. Therefore, after the compound is applied to an OLED device, the luminous efficiency of the device can be effectively improved, and the service life of the device can be effectively prolonged.

Description

technical field [0001] The invention relates to a compound with a dibenzo five-membered heterocycle as the core and an application thereof, belonging to the technical field of semiconductors. Background technique [0002] Organic Light Emission Diodes (OLED) device technology can be used not only to manufacture new display products, but also to make new lighting products. It is expected to replace the existing liquid crystal display and fluorescent lighting, and has a wide application prospect. The OLED light-emitting device is like a sandwich structure, including electrode material film layers and organic functional materials sandwiched between different electrode film layers. Various functional materials are superimposed on each other according to the application to form an OLED light-emitting device. OLED light-emitting devices are current devices. When a voltage is applied to the electrodes at both ends, and the positive and negative charges in the organic layer function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D405/14C07D409/14C07D405/10C07D405/04C07D407/10C07D471/04C07D407/04C09K11/06H01L51/50H01L51/54
CPCC07D405/14C07D409/14C07D405/10C07D405/04C07D407/10C07D471/04C07D407/04C09K11/06C09K2211/1088C09K2211/1092C09K2211/1044C09K2211/1059C09K2211/1007C09K2211/1011H10K85/622H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/16H10K50/11H10K50/00
Inventor 殷梦轩张小庆李崇
Owner JIANGSU SUNERA TECH CO LTD
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