bearing 2,9-diaryl-1,10-phenanthroline ligands exhibit not only unprecedented catalytic activity but also unusual ligand-controlled divergent regioselectivity in hydrosilylation reactions of various alkynes. The hydrosilylation protocol described herein provides a highly efficient method for preparing useful di- and trisubstituted olefins on a relatively large scale under mild conditions, and its use
Cobalt-Catalyzed Diastereoselective and Enantioselective Hydrosilylation of Achiral Cyclopropenes
作者:Longyang Dian、Ilan Marek
DOI:10.1021/acs.orglett.0c01833
日期:2020.6.19
A mild diastereoselective and enantioselective cobalt-catalyzed hydrosilylation reaction of achiral cyclopropenes has been developed. In this protocol, various substituted cyclopropenes and arylsilanes were transformed, in the presence of readily available chiral cobalt complex, into silylcyclopropanes with high selectivities.
3-disubstituted and 1,2-disubstituted cyclopropenes, and hence provides a facile and straightforward route to synthetically valuable polysubstituted and challenging fully substituted cyclopropylsilanes with high efficiency and diastereoselectivity.