125294-40-8Relevant academic research and scientific papers
Regioselective reactions of o-aminothiophenol with unsymmetrical maleic anhydrides
Balasubramaniyan, V.,Balasubramaniyan, P.,Shaikh, A. S.,Argade, N. P.
, p. 123 - 125 (2007/10/02)
Maleic anhydride (MA; Ia) and its methyl (MMA; Ib), dimethyl (DMMa; Ic), phenyl (PMA; Id) and phenylmethyl (PMMA; Ie) derivatives react with o-aminothiophenol (o-ATP) to yield benzothiazines (IIIa-e) via Michael-type addition.In contrast, its oxygenated derivatives react with o-ATP to furnish benzothiazoles (IVf-h) apparently by a different pathway.
