Monohydrosilanes can be prepared selectively in high yields from the reaction of various aryl and alkyl iodides with ytterbium metal followed by the reaction with dihydrosilanes.
Light-Promoted Arylsilylation of Alkenes with Hydrosilanes
作者:Wanyao Zheng、Yongjie Xu、Hang Luo、Yunhui Feng、Jinqiao Zhang、Luqing Lin
DOI:10.1021/acs.orglett.2c02835
日期:2022.10.7
Herein, we report light-promoted photo/hydrogen atom transfer dual catalysis for arylsilylation of alkenes via the radical–radical cross-coupling with diverse hydrosilanes, which provides a simple and efficient method to prepare various organosilicon compounds with a wide range of substrate scope and good functional group tolerance under transition-metal- and chemical-oxidant-free conditions. Furthermore
The photocatalyzed synthesis of silanols from tertiary silanes has been carried out using eosin Y under air. This is a metal-free method that uses a low catalyst loading, atmospheric oxygen as the oxidant, and visible-light conditions (blue light).
使用曙红 Y 在空气中进行了由叔硅烷光催化合成硅烷醇。这是一种无金属方法,使用低催化剂负载、大气中的氧气作为氧化剂和可见光条件(蓝光)。
Practical and Selective Bio-Inspired Iron-Catalyzed Oxidation of Si–H Bonds to Diversely Functionalized Organosilanols
作者:Song Li、Haibei Li、Chen-Ho Tung、Lei Liu
DOI:10.1021/acscatal.2c02678
日期:2022.8.5
oxidant at an iron catalyst loading of 0.1 mol % is reported. The practical and highlyselective oxidation exhibits good functional group tolerance, allowing effective access to diverselyfunctionalized alkyl-, aryl-, alkynyl-, and alkoxysilanols, silanediols, as well as mono-, oligo-, and polymeric siloxanols with various substituent patterns. Late-stage gram-scale application in functional-molecule-containing