作者:Xiaoxia Liang、Chen Wu、Zhipeng Zheng、Patrick J. Walsh
DOI:10.1021/acs.organomet.8b00476
日期:2018.9.24
A novel method to produce disulfoxides diastereoselectively from phenyl benzyl sulfoxides is reported. The Ni(PnBu3)2Cl2]/NIXANTPHOS catalyst system successfully promotes an oxidative coupling reaction of aryl benzylic sulfoxides to disulfoxides. An intermediate aldehyde, produced from the elimination of α-hydroxy sulfoxides, is proposed to generate the key sulfenate anion, enabling the formation of
报道了一种由苯基苄基亚砜非对映选择性地生产二亚砜的新方法。Ni(P n Bu 3)2 Cl 2 ] / NIXANTPHOS催化剂体系成功地促进了芳基苄基亚砜氧化为二亚砜的氧化偶联反应。提出了通过消除α-羟基亚砜而产生的中间体醛,以生成关键的亚磺酸根阴离子,从而能够形成二亚砜产物。以中等至高产率(30-83%)和非对映选择性(rac /内消旋比从3:1到> 20:1)产生了一系列二氧化硫。