作者:M. Abdel-Megid
DOI:10.1007/s10593-010-0460-y
日期:2009.12
Ring closure reactions of 1,6-diamino-4-(4-chlorophenyl)-2-oxopyridine-3,5-dicarbonitrile with various 1,3-dielectrophiles, namely, diethyl malonate, ethyl ethoxymethylenecyanoacetate, 2-cyano-3,3-bis(methylthio)acrylonitrile, dimethyl acetylenedicarboxylate, dehydroacetic acid, chromone-3-carbonitrile, and 3-formylchromone led to the formation of the target biheterocyclic 1,2,4-triaze-pines. The reactions
1,6-二氨基-4-(4-氯苯基)-2-氧吡啶-3,5-二腈与各种1,3-二亲电子试剂的闭环反应,即丙二酸二乙酯,乙氧基亚甲基氰基乙酸乙酯,2-氰基-3,3 -双(甲硫基)丙烯腈,乙炔二甲酸二甲酯,脱氢乙酸,苯并三苯甲酮和3-甲酰基苯甲酮导致形成目标双杂环1,2,4-三嗪-松树。还描述了与3-苯基偶氮-2,4-戊二酮,α-氰基-α-苯基偶氮乙酸乙酯和3,1-苯-恶嗪-4-酮衍生物的反应。