反应详情

Following a procedure similar to that described in Example 2A and using 4-(1-pyrrolidyl)-cyclohexanone (14.5 g.), 3-benzyloxyphenylhydrazine hydrochloride (21.8 g.), 160 ml. of absolute ethyl alcohol and 60 ml. of 4.5N ethanolic hydrogen chloride there was obtained 3-(1-pyrrolidinyl)-7-benzyloxy-1,2,3,4-tetrahydrocarbazole hydrochloride, 4 g. of which was hydrogenated, following a procedure similar to that described in Example 1C to give 1.3 g. of 3-(1-pyrrolidyl)-7-hydroxy-1,2,3,4-tetrahydrocarbazole hydrochloride, m.p. 294°-295° C. (methyl alcohol-water).