Acetic Anhydride → HCID 54500097, compound

Participants

Reaction Steps

A mixture of 3.56 g of 5-p-chlorophenyl-1-phenyl-4-(thiazolidin-2-yl-methyl)-pyrazole and 55 ml of acetic anhydride is boiled for 3 hours. 55 ml of pyridine is then added and the mixture is heated for a further 5 hours at 50° and subjected to the customary working up. 4-(3-Acetylthiazolidin-2-yl-methyl)-5-p-chlorophenyl-1-phenylpyrazole is obtained; m.p. 121°-122°.

Provenance & Evidence