Hydrazinolytic recyclization of 2-phenacylbenzothiazole
作者:I. B. Dzvinchuk、A. V. Vypirailenko、M. O. Lozinskii
DOI:10.1007/s11172-005-0315-3
日期:2005.3
accompanied by oxidation of resulting 2-[(5-phenylpyrazole-3-yl)amino]thiophenol into the corresponding disulfide. The subsequent intramolecular cyclocondensation gives selectively pyrazolo[4,3-b][1,4]benzothiazines.