Reactions of Acylpyruvic Acids and 2, 3-Dihydrofuran-2, 3-diones with 2, 3-Diaminopyridine

OA Sof'ina, NM Igidov, EN Koz'minykh…

文献索引：Sof'ina; Igidov; Koz'minykh; Trapeznikova; Kasatkina Russian Journal of Organic Chemistry, 2001 , vol. 37, # 7 p. 1017 - 1025

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被引用次数: 7

摘要

Abstract Acylpyruvic acids readily react with 2, 3-diaminopyridine to form (Z)-3- acylmethylene-1 H-3, 4-di-hydropyrido [2, 3-b] pyrazin-2-ones. 5-Aryl-2, 3-dihydrofuran-2, 3- diones which can be regarded as lactones derived from γ-enolized aroylpyruvic acids react with 2, 3-diaminopyridine under mild conditions, yielding regioisomeric (Z)-2-aroylmethylene- 4 H-1, 2-dihydropyrido [2, 3-b] pyrazin-3-ones. The structure of the products and reaction ...