(E)-selective hydrosilylation of alkynes with PhSiH3 has been developed for the synthesis of (E)-β-vinylsilanes with high regio- and stereoselectivity and wide functional group tolerance. It is the first report of using porous organic polymer as a recyclable regio- and stereoselective and efficient ligand in hydrosilylation reactions in which the polymer could be recycled numerous times in a continuous flow
Supported Ni nanoparticles with a phosphine ligand as an efficient heterogeneous non-noble metal catalytic system for regioselective hydrosilylation of alkynes
作者:Hongli Wang、Yongji Huang、Xinzhi Wang、Xinjiang Cui、Feng Shi
DOI:10.1039/d0ob01693d
日期:——
heterogeneous non-noble metal catalytic system for regioselective hydrosilylation of alkynes was successfully developed by the combination of Ni/Al2O3 with a xantphos ligand. The resulting catalytic system displayed excellent catalytic performance in the heterogeneous hydrosilylation of PhSiH3 with a wide range of aromatic and aliphatic terminal alkynes, affording the corresponding (E)-vinylsilanes in good
Ni / Al 2 O 3与黄原磷配体的结合成功地开发了一种便捷有效的炔烃非均相非贵金属催化体系。所得的催化体系在PhSiH 3与多种芳族和脂族末端炔烃的异质氢化硅烷化反应中显示出优异的催化性能,从而提供了相应的(E)-乙烯基硅烷,具有良好或优异的收率和高的区域选择性。
Cobalt-Catalyzed (<i>E</i>)-Selective<i>anti</i>-Markovnikov Hydrosilylation of Terminal Alkynes
作者:Caizhi Wu、Wei Jie Teo、Shaozhong Ge
DOI:10.1021/acscatal.8b01410
日期:2018.7.6
regioselective and stereoselective hydrosilylation of terminalalkynes with catalysts generated from bench-stable Co(acac)2 and bisphoshpine ligands. The cobalt catalyst precursors are activated by the reaction with hydrosilanes, and air-sensitive activators, such as Grignard reagents or NaBHEt3, are not required for catalyst activation. A wide range of aromatic and aliphatic terminalalkynes underwent this