Abstract Arylazo derivatives of quinoxaline (1, 4-benzodiazine), 1, 4-benzothiazine, and 1, 4- benzoxazine have been prepared by condensation of hydrazidoyl halides with o- phenylenediamine, o-aminothiophenol, and o-aminophenol, respectively (Table I). This method seems to be more general than the approach using coupling of reactive diazonium salts with, eg., 277–1, 4-benzothiazine. Both the spectral data and the results of HMO ...
