Synthesis of sulphonated 4H-1, 4-benzothiazines

RR Gupta, R Kumar, RK Gautam

Index: Gupta, Radha Raman; Kumar, Rakesh Heterocycles, 1984 , vol. 22, # 1 p. 87 - 91

Full Text: HTML

Citation Number: 1

Abstract

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