Benzoyl isocyanate, 2-chloro-4-fluoro- → 1-(2-Chloro-4-fluorobenzoyl)-3-[2-methyl-4-(3-methyl-5-oxo-2,5-dihydropyrazol-1-yl)phenyl]urea

Participants

Reaction Steps

The solution of equivalent amounts of 2-chloro-4-fluorobenzoyl isocyanate in acetonitrile was added dropwise to the solution of 71 mg of 2-(4-amino-3-methylphenyl)-5-methyl-1,2-dihydropyrazol-3-one in 6 ml of acetonitrile and the mixture was stirred at room temperature overnight. The solid formed was filtered off with suction and dried under reduced pressure.

Provenance & Evidence