作者:L. Thijs、F.L.M. Smeets、P.J.M. Cillissen、J. Harmsen、B. Zwanenburg
DOI:10.1016/0040-4020(80)80105-0
日期:1980.1
The preparation of eighteen epoxy diazomethyl ketones 1 is described. Two general methods were developed. Firstly, treatment of the mixed anhydrides of glycidic acids and carbonic acid ester with diazomethane led to the title compounds in yields ranging from 17–74%. Secondly, glycidyl chlorides which were obtained from sodium glycidates and oxalyl chloride, gave the desired products upon treatment
描述了十八种环氧重氮甲基酮1的制备。开发了两种通用方法。首先,用重氮甲烷处理缩水甘油酸和碳酸酯的混合酸酐会导致标题化合物的收率在17-74%之间。其次,由缩水甘油酸钠和草酰氯制得的缩水甘油氯经重氮甲烷处理后可提供所需的产物(收率60-74%)。所需的α,β-环氧羧酸酯是通过Darzens缩合和α,β-不饱和酯的环氧化制备的,但在某些情况下还可以通过α-氧代羧酸酯与重氮甲烷的反应制得。