反应详情

A mixture of 3.0 g of 3-phenyl-1,2,4-thiadiazole-5-sulfonamide and 11 ml of triethyl orthopropionate was warmed in an oil bath at 80° for 4 hours. The mixture was cooled to room temperature and diluted with hexane (35 ml) and the precipitated solid was collected, washed with hexane and dried to give 3.3 g of solid, m.p. 98°-100°.

1. temperaturewas warmed in an oil bath at 80° for 4 hours
2. customthe precipitated solid was collected
3. washwashed with hexane
4. customdried