Some reactions of mono substituted pyrazine monoxides

A Ohta, T Watanabe, Y Akita, M Yoshida…

Index: Ohta, Akihiro; Watanabe, Tokuhiro; Akita, Yasuo; Yoshida, Maki; Toda, Suzumi; et al. Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 1061 - 1067

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Citation Number: 13

Abstract

Abstract The reactions of the monoxides of propylpyrazine and phenylpyrazine with phosphoryl chloride or acetic anhydride were investigated. Except in the case of the reaction of 2-propylpyrazine 1-oxide with acetic anhydride, chlorination or acetoxylation occurred on the pyrazine ring in all cases; moreover, these reactions occurred preferentially at the position poorest in π-electron density. The N-oxidation and the successive chlorination of ...