SYNTHESIS OF SULPHONATED 4H-1,4-BENZOTHIAZINES

Radha Raman Gupta Department of Chemistry, University of Rajasthan, Jaipur, 302004, India

Rakesh Kumar Department of Chemistry, University of Rajasthan, Jaipur, 302004, India

Rakesh Kumar Gautam Department of Chemistry, University of Rajasthan, Jaipur, 302004, India

Abstract

Single step and convenient synthesis for 6-sulphonated 4H-1,4-benzothiazines is reported by the condensation and oxidative cyclization of 2-aminobenzenethiol-4-sulphonic acid with β-diketones. 2-Aminobenzenethiol-4-sulphonic acid has been synthesized directly by the reaction of sulphuric acid and 2-aminobenzenethiol. The structures of synthesized compounds were confirmed by spectral studies.

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SYNTHESIS OF SULPHONATED 4H-1,4-BENZOTHIAZINES

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SYNTHESIS OF SULPHONATED 4H-1,4-BENZOTHIAZINES

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