Benzophenone → N'-(Diphenylmethylene)-4-methylbenzenesulfonohydrazide

Participants

Reaction Steps

Benzophenone (15.0 parts, 0.082M ex Fluka) was stirred at reflux with p-toluene sulphonylhydrazine (15.33 parts, 0.082M ex Aldrich) in ethanol (125 ml) for 10 hours. Gradually a pale yellow solution formed from which the hydrazone gradually precipitated. After cooling to 20° C., diethylether (20 ml) was added and the hydrazone filtered and washed with ether. The hydrazone was obtained as a white powder (24.0 parts; 83% theory) mp 184°-6° C.

Provenance & Evidence