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Report | Regular issue | Vol 14, No. 8, 1980, pp.1145-1149
Published online, 1st January, 1970
DOI: 10.3987/R-1980-08-1145
A Convenient and Single Step Synthesis of Substituted 4H[1,4]-Benzothiazines

R. R. Gupta,* K. G. Ojha, G. S. Kalwania, and M. Kumar

*Department of Chemistry, University of Rajasthan, Jaipur 302 004, India

Abstract

A simple one step synthesis is reported for substituted 4H[1,4]-benzothiazines involving the condensation of 5-(chloro, bromo, methyl, methoxy, ethoxy)-, 4-methyl- and 3-(chloro and methoxy)-2-aminobenzenethiols with acetylacetone/ethyl acetoacetate/dibenzoylmethane in DMSO.