反应详情

A solution of 3-(propane-1-sulfonylamino)-benzoic acid (76, 1.20 g, 4.93 mmol) in thionyl chloride was heated to reflux for 3.0 hours. Evaporation of the solvent gave compound 77 as white solid that was used for the next step.

1. temperatureto reflux for 3.0 hours
2. customEvaporation of the solvent