Reaction of sulfene with heterocyclic N, N??disubstituted α??aminomethyleneketones. VII. Synthesis of 1, 2??oxathiino??[5, 6??g] benzothiazole derivatives

L Mosti, G Menozzi, P Schenone

Index: Mosti, Luisa; Menozzi, Giulia; Schenone, Pietro Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 1069 - 1071

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Citation Number: 4

Abstract

Abstract The polar 1, 4-cycloaddition of sulfene to N, N-disubstituted 6-aminomethylene-5, 6- dihydro-2-phenylbenzothiazol-7-(4H) ones gave, generally in good yield, N, N-disubstituted 3, 4, 5, 6-tetrahydro-8-phenyl-1, 2-oxathiino-[5, 6-g] benzothiazol-4-amine 2, 2-dioxides, which are derivatives of the new heterocyclic system 1, 2-oxathiino-[5, 6-g] benzothiazole. This reaction did not occur only with the N, N-diphenylenaminone.