Synthetic route for the novel pyrimidine-substituted alkanoate, acetohydrazide, and imines: Synthon for <font>β</font>-lactams
作者:Preety Saini、Shamsher S. Bari、Bimal K. Banik、Aman Bhalla
DOI:10.1080/00397911.2017.1301479
日期:2017.5.19
synthesis of novel pyrimidine-substituted alkanoate, acetohydrazide, and imines is described. The synthesis of novel ethyl 2-(2,6-dimethylpyrimidin-4-yloxy)acetate (EDMPyA) 2 was performed through SN2 O-alkylation of 2,6-dimethyl-4-hydroxypyrimidine 1 with ethyl haloacetate. The compound EDMPyA 2 was subjected to nucleophilic substitution reaction with hydrazine hydrate to afford novel 2-(2,6-dimet
摘要描述了一种简单有效的新型嘧啶取代链烷酸酯、乙酰肼和亚胺的合成方法。新型 2-(2,6-二甲基嘧啶-4-基氧基) 乙酸乙酯 (EDMPyA) 2 的合成是通过 2,6-二甲基-4-羟基嘧啶 1 与卤代乙酸乙酯的 SN2 O-烷基化进行的。化合物 EDMPyA 2 与水合肼进行亲核取代反应,得到新型 2-(2,6-二甲基嘧啶-4-基氧基)乙酰肼 (DMPyAH) 3。该 DMPyAH 3 与不同取代的羰基化合物(醛/酮)缩合后提供的 DMPyAH 亚胺 (DMPyAH-I) 4a–d。这些亚胺可用于制备独特的 β-内酰胺。使用光谱(FT-IR、1H 和 13C NMR)和元素分析(C、H、N)对所有新合成的化合物进行结构解析。