反应详情

10 g of ground 3-sulfamoylbenzoic acid were reacted as prescribed in Example 70b), the thionyl chloride was distilled off and the residue was crystallized under a mixture of petroleum ether and diethyl ether (1:1). Melting point: 123° C.

1. distillationwas distilled off
2. customthe residue was crystallized under a mixture of petroleum ether and diethyl ether (1:1)