Organic electroluminescent material and synthesis and application thereof
A technology of electroluminescent materials and organic light-emitting layers, which is applied in the direction of luminescent materials, organic compound preparation, organic chemistry, etc., can solve the problems of affecting the service life of materials, the destruction of film uniformity, and low glass transition temperature, so as to reduce the stacking The probability of improving OLED yield and the effect of high hole mobility
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Embodiment 1
[0069] Synthesis
[0070] The synthetic route is as follows:
[0071]
[0072] 1) Synthesis of compound 1-1
[0073]1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), 2-methylaniline 32.1g (purity 99%, 0.3mol), 41.4g 1-bromonaphthalene (purity 99 %, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 41.5 g of a yellow product with...
Embodiment 2
[0078] Synthesis
[0079] The synthetic route is as follows:
[0080]
[0081] 1) Synthesis of Compound 2-1
[0082] 1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), 2-methylaniline 32.1g (purity 99%, 0.3mol), 41.4g 1-bromonaphthalene (purity 99 %, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 40.5 g of a yellow product wit...
Embodiment 3
[0087] Synthesis
[0088] The synthetic route is as follows:
[0089]
[0090] 1) Synthesis of compound 3-1
[0091] 1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), 2-methylaniline 32.1g (purity 99%, 0.3mol), 41.4g 1-bromonaphthalene (purity 99 %, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 42 g of a yellow product with ...
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