Sodium Hydroxide → 9-Chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole

Participants

Reaction Steps

The title compound was prepared by following general procedure 1. 1-Methylazepan-4-one hydrochloride (164 mg, 1 mmol) and 4-chlorophenylhydrazine hydrochloride (179 mg, 1 mmol) were heated in a mixture of 7% sulfuric acid in 1,4-dioxane (2-3 mL) overnight under nitrogen. Two liquid layers persisted throughout the reaction. The mixture was poured on to ice and basified with 50% aq NaOH. The resulting precipitate was filtered, washed well with water, and dried in air to give 9-chloro-1,2,3,4,5,6-hexahydro-3-methylazepino[4,5-b]indole as a dark brown solid (183 mg 78% yield).

Provenance & Evidence