反应详情

N-Cyclohexyl 4-chlorobenzamide (12.8 g, 53.9 mmole) and thionyl chloride (43.14 g, 363 mmole) were heated at reflux with stirring for 1.75 hours. Excess thionyl chloride was removed by distillation. The title compound was isolated by distillation (b.p. 130° C. at ~15 mm Hg) to yield 7.4 g (54%) of a clear colorless liquid which crystallized upon cooling.

1. temperatureat reflux
2. customExcess thionyl chloride was removed by distillation