Modular Approach to Reductive C<sub>sp2</sub>–H and C<sub>sp3</sub>–H Silylation of Carboxylic Acid Derivatives through Single-Pot, Sequential Transition Metal Catalysis
作者:Yuanda Hua、Seongjeong Jung、James Roh、Junha Jeon
DOI:10.1021/acs.joc.5b00564
日期:2015.5.1
modular approach to catalytic reductive Csp2–H and Csp3–H silylation of carboxylic acid derivatives encompassing esters, ketones, and aldehydes. Choice of either an Ir(I)/Rh(I) or Rh(I)/Rh(I) sequence leads to either exhaustive reductive ester or reductive ketone/aldehyde silylation, respectively. Notably, a catalyst-controlled direct formation of doubly reduced silyl ethers is presented, specifically
我们报告了一种模块化方法,用于催化还原性C sp2- H和C sp3- H甲酸酯基,包括酯,酮和醛的羧酸衍生物的甲硅烷基化。Ir(I)/ Rh(I)或Rh(I)/ Rh(I)序列的选择分别导致详尽的还原性酯或还原性酮/醛甲硅烷基化。值得注意的是,提出了一种催化剂控制的直接还原的双还原甲硅烷基醚的形成方法,特别是通过Ir催化的详尽的氢化硅烷化反应。生成的甲硅烷基醚在单个容器中进行C sp2- H和苄基C sp3- H甲硅烷基化。