反应详情

10 g of 4-methyl-3-sulfamoylbenzoic acid were boiled under reflux for 8 hours in 50 ml of thionyl chloride and the reaction mixture was allowed to stand over night at 0° C. The crystals were collected on a sinter glass frit and washed with petroleum ether and diisopropyl ether. Melting point: 180° C (decomposition).

1. waitto stand over night at 0° C
2. customThe crystals were collected on a sinter glass frit
3. washwashed with petroleum ether and diisopropyl ether