Acetic Acid → 9-Benzoyl-1,2,3,4-tetrahydrocarbazole-3,3-dicarboxylic acid

Participants

Reaction Steps

1-Benzoyl-1-phenylhydrazine hydrochloride (5 g.) and 4 g. of cyclohexanone-4,4-dicarboxylic acid in 10 ml. of glacial acetic acid were heated at 60°-70°C. for thirty minutes. The mixture was diluted with water and the resulting solid was collected by filtration and washed with water to give 7.1 g. of the title compound; m.p. 160°C. (acetone and hexane).

Provenance & Evidence