反应详情

Into a three-necked flask, 14.6 g of sodium hydride and 700 ml of 1,2-dimethoxyethane were placed, and 130.8 g of trimethylphosphonium bromide was added thereto with stirring at room temperature. Next, after a drop of absolute alcohol was added, the reaction was allowed to proceed at 70° C. for 4 hours. Then, 100 g of 4-(N,N-diphenylamino)benzaldehyde was added thereto, and the temperature was raised to 70° C. to carry out reaction for 5 hours. The resulting reaction solution was filtered, and the filtrate and an ether-extract of the precipitate were put together and washed with water. Then, the ether solution was dehydrated with calcium chloride, and ether was removed to obtain a crude reaction product. After recrystallized from ethanol, acicular pale yellow vinyltriphenylamine was obtained in an amount of 83.4 g (yield: 84.0%).

1. temperaturethe temperature was raised to 70° C.
2. customreaction for 5 hours
3. customThe resulting reaction solution
4. filtrationwas filtered
5. extractionthe filtrate and an ether-extract of the precipitate
6. washwashed with water
7. customwas removed
8. customto obtain a crude
9. customreaction product
10. customAfter recrystallized from ethanol