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Report | Regular issue | Vol 22, No. 1, 1984, pp.87-91
Published online, 1st January, 1970
DOI: 10.3987/R-1984-01-0087
Synthesis of 2-Amino-3-ethoxybenzebethiol and Its Conversion into 4H-1,4-Benzothiazines

Radha Raman Gupta* and Rakesh Kumar

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

Abstract

Synthesis of 2-amino-3-ethoxybenzenethiol and 5-ethoxy- 4H-1,4-benzothiazines is reported for the first time. Synthesis of 4H-1,4-benzothiazines involves the condensation and oxidative cyclisation of 2-amino-3-ethoxybenzenethiol with β-diketones in DMSO.