Synthesis and reactivity of methyl 3-acyl-6-amino-4-aryl-5-cyano-4H-pyran-2-carboxylates
作者:V. P. Sheverdov、A. Yu. Andreev、O. V. Ershov、O. E. Nasakin、V. A. Tafeenko、V. L. Gein
DOI:10.1007/s10593-012-1091-2
日期:2012.10
ran-2-carboxylates - are obtained, which are novel, promising structural components for the synthesis of carbo- and heterocycles. The reactions of these pyrans with sulfuric and hydrochloric acids, acetic anhydride, and alcohols have been studied. Novel methods have been developed for the preparation of substituted derivatives of cyclopentenone, pyrano[2,3-d]-pyrimidine, 5-oxo-3-phenylpentanoic acid
通过用2,4-二氧代丁酸甲酯处理芳基丙二腈,得到了4 H-吡喃衍生物-3-酰基-6-氨基-4-芳基-5-氰基-4 H-吡喃-2-羧酸甲酯的衍生物。 ,是合成碳环和杂环的有前途的结构性成分。已经研究了这些吡喃与硫酸和盐酸,乙酸酐和醇类的反应。已开发出用于制备环戊烯酮,吡喃并[2,3-d]-嘧啶,5-氧代-3-苯基戊酸和烟酸腈的取代衍生物的新方法。