反应详情

A solution of 15.8 g. of 4-dimethylaminocyclohexanone hydrochloride and 20.3 g. of 3-benzyloxyphenylhydrazine hydrochloride (m.p. 165°-168° C.) in 225 ml. of absolute ethyl alcohol was heated under reflux for three hours, cooled to room temperature, and diluted with 50 ml. of water. After standing for three hours the resulting crystals were collected by filtration and washed with ethyl alcohol to give, after recrystallization from ethyl alcohol, 6.1 g. of 3-(dimethylamino)-7-(benzyloxy)-1,2,3,4-tetrahydrocarbazole hydrochloride, m.p. 237°-239° C.

1. temperatureunder reflux for three hours
2. additiondiluted with 50 ml
3. filtrationthe resulting crystals were collected by filtration
4. washwashed with ethyl alcohol
5. customto give
6. customafter recrystallization from ethyl alcohol, 6.1 g