Acetic Acid → HCID 178432136, compound

Participants

Reaction Steps

2-Aminobenzenesulfonamide (17.2 g; 100 mmol) was refluxed in AcOH for 5 days. The precipitate formed was isolated by filtration and washed with water to give 17.8 g (91%) of 3-methyl-1,2-dihydro-1,2,4-benzothiadiazine-1,1-dioxide. 3-Methyl-1,2-dihydro-1,2,4-benzothiadiazine-1,1-dioxide was transformed by Method A (using dimethylamine as amine). M.p. 260-261° C.

Provenance & Evidence