Ammonia → HCID 15022719, compound

Participants

Reaction Steps

4.7 g (0.278 mol) of gaseous ammonia were passed over the course of 1 hour into a stirred mixture of 38.0 g (0.147 mol) of 2-fluoro(chloro)-4-trifluoromethoxy-6-trifluoromethylpyrimidine and 150 ml of diethyl ether at -75° to -70° C. The mixture was stirred for 2 hours each at -75° and at 25° C. The precipitate was filtered off with suction, and the organic phase was extracted with water, dried and evaporated. Chromatography on silica gel with methyl tert.-butyl ether yielded 20.4 g (56.1% of theory) of the title compound of melting point 47°-49° C.

Provenance & Evidence