Some urethans of phenolic quaternary ammonium salts

JH Gardner, JR Stevens

文献索引：Gardner; Stevens Journal of the American Chemical Society, 1947 , vol. 69, p. 3086

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被引用次数: 8

摘要

Summary 1. Some comparisons are made with respect to the relative ease with which urea, thiaurea and benzamidine condense with an cr-alkyl-a-cwbethoxy-y-butyric lactone and an alkylmalonic ester to yield compounds related to pyrimidine. A tentative mechanism for the reaction is proposed which is based partly on the isolation of two types of intermediates. The replacement of bromine in the p-position to the barbituric acid nucleus proceeds smoothly. ...