Remote Stereocontrol in the Synthesis of Acyclic 1,4-Diols and 1,4-Aminoalcohols from 2-Sulfinyl Dienes
作者:Roberto Fernández de la Pradilla、Marina Velado、Ignacio Colomer、Carmen Simal、Alma Viso、Heinz Gornitzka、Catherine Hemmert
DOI:10.1021/ol502592y
日期:2014.10.3
The highly diastereoselective conjugate addition of alcohols and amines (RXH) to enantiopure 2-sulfinyl dienes renders transient allylic sulfoxides which undergo sulfoxide–sulfenate rearrangement and sulfenate cleavage providing 2-ene-1,4-diols and 2-ene-1,4-aminoalcohols with up to 99:1 dr. The method allows for the generation of two stereocenters in a single synthetic operation with remote chirality
对映体纯的2-亚磺酰基二烯高度非对映选择性共轭添加醇和胺(RXH),使瞬态烯丙基亚砜发生亚砜-亚磺酸酯重排和亚磺酸酯裂解,生成2-烯-1,4-二醇和2-烯-1,4-氨基醇含量高达99:1博士 该方法允许在单个合成操作中产生两个立体中心,其中一个中心向另一个中心的远程手性转移。