Synthesis of substituted pyrido[1,2-a]pyrimidines from 2-arylmethylidene-3-fluoroalkyl-3-oxopropionates
作者:M. V. Pryadeina、Ya. V. Burgart、M. I. Kodess、V. I. Saloutin
DOI:10.1007/s11172-006-0198-y
日期:2005.12
both the polyfluoroacylvinyl and alkoxycarbonylvinyl fragments to give alkyl 4-aryl-2-polyfluoroalkyl-4H-pyrido[1,2-a]pyrimidine-3-carboxylates and 4-aryl-2-hydroxy-3-polyfluoroacyl-4H-pyrido[1,2-a]pyrimidines, respectively. When treated with copper(II) acetate, the pyrido[1,2-a]pyrimidines yield metal complexes.
2-芳基亚甲基-3-氟代烷基-氧代丙酸酯与 2-氨基-吡啶的环缩合发生在多氟酰基乙烯基和烷氧基羰基乙烯基片段处,得到烷基 4-芳基-2-多氟烷基-4H-吡啶并[1,2-a]嘧啶-3-分别为羧酸盐和 4-芳基-2-羟基-3-多氟酰基-4H-吡啶并[1,2-a]嘧啶。当用乙酸铜 (II) 处理时,吡啶并 [1,2-a] 嘧啶生成金属配合物。