作者:Halina Kwiecień、Monika Szychowska
DOI:10.1080/00397910701557614
日期:2007.10.1
Abstract A simple method for the synthesis of 7‐amino‐4,5‐dihydro‐benzo[f][1,4]oxazepin‐3‐ones from 5‐nitrobenzaldehydes and 2‐haloesters was described. The three‐step procedure involves the synthesis of methyl 2‐(2‐formyl‐4‐nitrophenoxy)alkanoates, followed by reaction with hydrazine hydrate and reductive cyclization of the formed aldazines. 2‐Hydroxyethyl derivatives of the title amines were prepared
摘要 描述了一种从 5-硝基苯甲醛和 2-卤代酯合成 7-氨基-4,5-二氢-苯并[f][1,4]氧氮杂-3-酮的简单方法。三步法包括合成 2-(2-甲酰基-4-硝基苯氧基)链烷酸甲酯,然后与水合肼反应,并还原环化形成的 aldazines。以良好的收率制备了标题胺的 2-羟乙基衍生物。