ORGANIC SULFUR COMPOUNDS: PART I. BENZOTHIAZINE HYDROXAMIC ACIDS AND RELATED COMPOUNDS

RT Coutts, HW Peel, EM Smith

文献索引：Coutts,R.T. et al. Canadian Journal of Chemistry, 1965 , vol. 43, p. 3221 - 3231

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被引用次数: 12

摘要

2 H-1, 4-Benzothiazine hydroxamic acids of type V (see Table I) are readily prepared by reducing suitably substituted (o-nitrophenylthio) acetates (II, R'= Me or Et) by means of sodium borohydride and palladium-charcoal. The ester precursors can be prepared by the interaction of o-nitrothiophenols and α-bromoesters, but such a method is limited in scope. Diethyl bromomalonate, for example, reacts atypically with o-nitrothiophenol. The ester ...