作者:B. Achmatowicz、E. Baranowska、A.R. Daniewski、J. Pankowski、J. Wicha
DOI:10.1016/s0040-4020(01)86203-7
日期:——
A new method for stereospecific construction of the allylic alcohol moiety of prostaglandins, based on application of optically active α-hydroxy aldehydes, is described. In the presence of BF3 .Et2O, lithiated sulphones prepared from Corey aldehyde, and carbonyl compounds give t or only their traces were formed. The addition products , in the form of benzoates, mesylates or free alcohols, were subjected
描述了基于光学活性α-羟基醛的立体定向构建前列腺素的烯丙基醇部分的新方法。在BF 3 .Et 2 O的存在下,由Corey醛和羰基化合物制得的锂化砜给出t或仅形成痕量。苯甲酸酯,甲磺酸酯或游离醇形式的加成产物借助汞齐钠进行还原消除,得到烯烃。化合物和转化到外消旋的和天然PGF 2α分别,与已知的方法一致。