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Pyrene derivative and organic electroluminescence device thereof

A technology of electroluminescent devices and pyrene derivatives, applied in the field of pyrene derivatives and organic electroluminescent devices, which can solve the problems of reducing the use of materials, short life of organic light emitting devices, poor thermal stability, etc.

Inactive Publication Date: 2018-08-03
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability of such materials is poor, resulting in a short lifetime of organic light-emitting devices using phosphorescent materials, thus reducing the use of such materials

Method used

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  • Pyrene derivative and organic electroluminescence device thereof
  • Pyrene derivative and organic electroluminescence device thereof
  • Pyrene derivative and organic electroluminescence device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation of compound 2

[0050]

[0051] Preparation of Intermediate 2-3

[0052] Under the protection of nitrogen, 2-1 (36.00g, 100.00mmol), 2-2 (12.20g, 100.00mmol), potassium carbonate (1.24g, 9.00mmol), and toluene 200mL were added into a 2L reactor and stirred. The temperature in the reactor was raised to 70°C, and Pd(PPh 3 ) 4 (1.04g, 0.90mmol), stirred with 100mL distilled water, stirred and refluxed for 11h, fully reacted. After adding 70mL of distilled water to terminate the reaction, filter under reduced pressure, wash the solid with distilled water, and then use acetone, toluene, THF to recrystallize, sublimate after obtaining the solid, and recrystallize toluene to obtain 28.69g of intermediate 2-3, with a yield of 80.32 %.

[0053] Preparation of intermediates 2-5

[0054] To 2-3 (28.69 g, 80.31 mmol) and a solution of 2-4 (7.56 g, 80.31 mmol) in degassed toluene (500 mL), and the mixture was heated at reflux for 2 hours. The reaction mixture w...

Embodiment 2

[0058] Preparation of compound 12

[0059]

[0060] Compound 12 was obtained by replacing 2-2 in Example 1 with 12-2 as shown above. Mass Spectrum m / z: 458.52 (calculated: 458.53). Theoretical element content (%)C 33 h 18 N 2 O: C, 86.44; H, 3.96; N, 6.11; O, 3.49 Measured element content (%): C, 86.45; H, 3.97; N, 6.12; O, 3.48. It was confirmed above that the obtained product was the target product 12.

Embodiment 3

[0062] Preparation of compound 19

[0063]

[0064] Compound 19 was obtained by replacing 2-2 in Example 1 with 19-2 and 2-4 with 19-4. Mass Spectrum m / z: 533.63 (calculated: 533.64). Theoretical element content (%)C 39 h 23 N 3 : C, 87.78; H, 4.34; N, 7.87 The measured element content (%): C, 87.79; H, 4.35; N, 7.86. It was confirmed above that the obtained product was the target product 19.

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PUM

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Abstract

The invention provides a pyrene derivative and an organic electroluminescence device thereof, and belongs to the technical field of an organic electroluminescence material. The compound has a structure shown as a formula (I). Pyrene and benzoglioxaline are compounded, so that the obtained material has excellent electron transmission capability and high glass transition temperature and can achievethe effect of preventing crystallization. The synthesis method is simple; the operation is easy; the organic electroluminescence device prepared from the pyrene derivative shows the advantages of lowdriving voltage and high luminous efficiency and belongs to an organic electroluminescence material with good performance.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a pyrene derivative and an organic electroluminescence device thereof. Background technique [0002] With the progress of the information industry, traditional displays can no longer meet people's requirements, such as: cathode ray tube (CRT) displays have large volume and high driving voltage; liquid crystal displays (liquid crystal display, LCD) have low brightness and narrow viewing angles. , The operating temperature range is small; the plasma display panel (PDP) is expensive, the resolution is not high, and the power consumption is large. [0003] Organic light-emitting diodes (organic light-emitting diodes, OLEDs) as a new display technology has unparalleled advantages in various performances of existing display technologies, such as full solid state, self-luminous, high brightness, high resolution , wide viewing angle (above 170 degrees), fast resp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D471/04C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D471/04C09K2211/1037C09K2211/1044C09K2211/1033C09K2211/1059C09K2211/1007C09K2211/1029C09K2211/1011C09K2211/1088C09K2211/1092H10K85/615H10K85/622H10K85/654H10K85/657H10K85/6576H10K85/6572H10K85/6574H10K50/11
Inventor 张弘蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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