Compound for electroluminescent organic material and method for producing the same
A technology of electroluminescent materials and compounds, which is applied in the preparation of organic compounds, preparation of amino hydroxyl compounds, luminescent materials, etc., can solve the problems of low glass transition temperature and reduced luminous life of devices, and achieve stable chemical properties, easy operation, easy processing effect
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Embodiment 1
[0025] Example 1: The synthesis of 4,4-bis(N-1-naphthyl-N-4-triphenylamino) biphenyl is shown in accompanying drawing 1
[0026] Synthesis of 1.4-Bromotriphenylamine
[0027] Add 6.0mol concentrated sulfuric acid (96%) to a 1-liter three-necked flask with a thermometer and mechanical stirring, cool to 0°C; slowly add 112.62g triphenylamine (95%, 330mmol) in batches, and the reaction temperature during the addition is not high Cool to -25°C at 30°C, add 64.6 g of N-bromosuccinimide (98.5%, 363 mmol) in batches with vigorous stirring, and the reaction temperature during the addition is not higher than -22°C. React at -22 degrees for 2 hours, then at -18 degrees for 3 hours. After the reaction, the reaction solution was poured into a 5-liter beaker (ice-water bath) containing 1 kg of crushed ice, stirred, adjusted to pH 9 with 25% ammonia water, and then extracted with 800 ml of ether, and the aqueous phase was then separately used with 200 ml of ether. Extracted twice, combine...
Embodiment 2
[0032] Example 2: The synthesis of 4,4-bis[N-1-naphthyl-N-4-(4'-methyltriphenylamine) base]biphenyl is shown in accompanying drawing 2
[0033] 1. Synthesis of 4-bromo-4'methyltriphenylamine
[0034]7.0mol concentrated sulfuric acid (96%) was added to a 1-liter three-necked flask with a thermometer and mechanical stirring, and cooled to 0 degrees; 89.97g 4-methyltriphenylamine (95%, 330mmol) was slowly added in batches, and the addition process The reaction temperature was not higher than 30 degrees; cooled to -25 degrees, 70.5g N-bromosuccinimide (98.5%, 396 mmol) was added in batches under vigorous stirring, and the reaction temperature during the addition was not higher than -22 degrees. React at -22 degrees for 2 hours, then at -18 degrees for 3 hours. After the reaction, the reaction solution was poured into a 5-liter beaker (ice-water bath) equipped with 1 kg of crushed ice, stirred, adjusted to pH 9 with 25% ammonia water, and then extracted with 800 ml of ether, and t...
Embodiment 3
[0039] Example 3: The synthesis of 4,4-bis[N-1-naphthyl-N-4-(4'-methoxytriphenylamine)yl]biphenyl is shown in accompanying drawing 3
[0040] Synthesis of 1.4-bromo-4'methoxytriphenylamine
[0041] Add 400ml of concentrated sulfuric acid (96%) to a 1-liter three-necked flask with a thermometer and mechanical stirring, and cool it to 0 degrees; slowly add 91.35g of 4-methoxytriphenylamine (95%, 330mmol) in batches, and add The reaction temperature was not higher than 30 degrees; cooled to -25 degrees, 64.6g N-bromosuccinimide (98.5%, 363 mmol) was added in batches under vigorous stirring, and the reaction temperature during the addition was not higher than -22 degrees. React at -22 degrees for 4 hours, then at -18 degrees for 5 hours. After the reaction, the reaction solution was poured into a 5-liter beaker (ice-water bath) equipped with 1 kg of crushed ice, stirred, adjusted to pH 9 with 25% ammonia water, and then extracted with 800 ml of ether, and the aqueous phase was th...
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