2,6-Difluorobenzoyl isocyanate → 100279-32-1

Participants

Reaction Steps

In 15 ml of toluene was dissolved 2.6 g of 2-fluoro-4-(1,1,2-trifluoro-2-chloroethylthio)aniline, and 1.8 g of 2,6-difluorobenzoylisocyanate was added dropwise to the solution at room temperature (20° to 25° C.). After the reaction was allowed to proceed at the same temperature for 1 hour, the crystals, which separated out, were recovered by filtration and washed wiht toluene to give 3.6 g of N-(2,6-difluorobenzoyl)-N'-[2-fluoro-4-(1,1,2-trifluoro-2-chloroethylthio)phenyl]urea (Compound No. 39), m.p. of 172°-173° C.

Provenance & Evidence