Methanol → HCID 18980921, compound

Participants

Reaction Steps

A solution of 20 g (47 mmole) of N-(4-trifluoromethylphenyl)-3-(4-chlorophenyl)-4-isocyanato-4-methyl-4,5-dihydro-1H-pyrazole-1-carboxamide (Example 1d) in 200 ml of methanol was refluxed for 2 hours, concentrated in vacuo and recrystallized from ethyl acetate/hexanes yielding 19.8 g (92%) of a white solid, mp 179°-181° C.

Provenance & Evidence