Thiazole system organic electroluminescent compounds and organic light emitting diode using the same
A compound and electroluminescence technology, applied in the field of organic light emitting diodes and novel thiazole system organic electroluminescence compounds, can solve the problems of poor thermal stability, shortened device working life, and deviation of device life.
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[0071] Preparation of compound (100)
[0072] Under a nitrogen atmosphere, 1,2-dibromobenzene (56.7 g, 240.1 mmol) was dissolved in tetrahydrofuran (500 ml), and n-butyllithium (2.5 M solution in n-hexane) was dissolved at -78 °C (115.3 ml, 288.2 mmol) was slowly added dropwise thereto. After the mixture was stirred for 2 hours, anthracene-9,10-dione (20.0 g, 96.1 mmol) was added thereto, and the resulting mixture was slowly warmed to room temperature and stirred for 16 hours. The reaction mixture was then extracted with water and ethyl acetate. The extract was dried under reduced pressure and recrystallized from ethyl acetate (300 mL) and n-hexane (500 mL) to obtain 9,10-bis(2-bromophenyl)-9,10-dihydroanthracene- 9,10-diol (35.1 g, 67.2 mmol).
[0073] The thus obtained compound 9,10-bis(2-bromophenyl)-9,10-dihydroanthracene-9,10-diol (35.1 g, 67.2 mmol), potassium iodide (44.7 g, 268.9 mmol ) and sodium hypophosphite (57.0 g, 537.9 mmol) were dissolved in acetic acid (50...
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