Novel Approach to the Synthesis of Enantioenriched Sulfoxides. Highly Diastereoselective Alkylation of Sulfenate Anions with 1,4-Asymmetric Induction
作者:Franck Sandrinelli、Stéphane Perrio、Marie-Thérèse Averbuch-Pouchot
DOI:10.1021/ol026563s
日期:2002.10.1
[reaction: see text] Efficient 1,4-asymmetric induction with an enantiopure aminoalkyl group as the chiral auxiliary has been achieved in the first example of diastereoselective alkylation (up to 98:2) of a sulfenate anion, readily prepared by oxidation of the corresponding thiolate. The stereochemistry of the sulfoxide produced is the opposite of that obtained by the conventional route based on oxidation
[反应:见正文]在亚磺酸根阴离子的非对映选择性烷基化反应(最高达98:2)的第一个实例中,已经实现了以对映体纯氨基烷基为手性助剂的高效1,4-不对称诱导,该反应很容易通过氧化相应的硫醇盐。产生的亚砜的立体化学与基于硫化物前体的氧化的常规路线获得的立体化学相反。