Hydrochloric Acid → HCID 178429186, compound

Participants

Reaction Steps

A solution of 1 ml of 12 N hydrochloric acid in 250 ml of methanol was added to a mixture of 20.0 g (65.1 mmol) of N-(2-trifluoromethylphenyl)-5-amino-1,2,4-triazole-3-sulfonamide and 9.2 ml (72.2 mmol) of ethyl acetoacetate and the mixture heated to reflux with stirring. After about 5 days, most but not all of the starting material was found to have reacted by thin layer chromatography The solution was chilled and the precipitate that formed was collected by filtration, washed with cold methanol and dried to obtain 16.5 g (67.9 percent of theory) of the title compound as a white solid hemihydrate melting at 245°-7° C.

Provenance & Evidence