Ethanol → HCID 178460826, compound

Participants

Reaction Steps

To a suspension of 3 g. (0.091 m.) of 3-(4'-chlorophenyl)-5-(1'-ethoxypropylidene)-rhodanine in 15 ml. of ethanol is added a solution of sodium sulfide in 10 ml. of water and the mixture is stirred at room temperature until solution is complete (15-20 minutes). This solution is added to 100 ml. of water, allowed to stand for 15 minutes, filtered and the filtrate is acidified with 2N hydrochloric acid to give 3-(4'-chlorophenyl)-5-(1'-mercaptopropylidene)-rhodanine, m.p. 163°-165°C.

Provenance & Evidence