110821-57-3Relevant articles and documents
An efficient synthesis and antimicrobial studies of bioactive 4H-1,4-benzothiazine and their sulfone derivatives
Gautam, Naveen,Dixit, Yogesh,Dixit, Rahul,Gupta, Sudesh Kumar,Gautam, Dinesh Chand
, p. 1127 - 1136 (2013)
4H-1,4-benzothiazines were prepared by condensation followed by oxidative cyclization of substituted 2-aminobenzenethiols with β-diketones in dimethylsulfoxide. On refluxing with 30% hydrogen peroxide in glacial acetic acid, 4H-1,4-benzothiazines yielded