反应详情

To a stirred solution of 7.0 g (0.045 mol) of 2-fluorophenyl isothiocyanate in 100 ml of ether, was added ammonia gas over a three minute period. A white solid crystallized and was collected by filtration to yield 5.3 g of N-(2-fluorophenyl)thiourea, melting point 147°-148° C.

1. customA white solid crystallized
2. filtrationwas collected by filtration