[EN] FIRST ROW METAL-BASED CATALYSTS FOR HYDOSILYLATION<br/>[FR] CATALYSEURS D'HYDROSILYLATION À BASE DE MÉTAUX DE LA PREMIÈRE RANGÉE
申请人:UNIV CALIFORNIA
公开号:WO2013120057A1
公开(公告)日:2013-08-15
In various embodiments, the invention provides phosphine ligand supported first row metal catalysts with surprising and efficacious catalytic activity for hydrosilylation of pi-bonded substrates. Also provided are methods of using the catalysts of the invention to prepare hydrosilylated compounds.
Efficient alkene hydrosilation with bis(8-quinolyl)phosphine (NPN) nickel catalysts. The dominant role of silyl-over hydrido-nickel catalytic intermediates
作者:Jian Yang、Verònica Postils、Michael I. Lipschutz、Meg Fasulo、Christophe Raynaud、Eric Clot、Odile Eisenstein、T. Don Tilley
DOI:10.1039/d0sc00997k
日期:——
A cationicnickelcomplex of the bis(8-quinolyl)(3,5-di-tert-butylphenoxy)phosphine (NPN) ligand, [(NPN)NiCl]+, is a precursor to efficient catalysts for the hydrosilation of alkenes with a variety of hydrosilanes under mild conditions and low catalyst loadings. DFT studies reveal the presence of two coupled catalytic cycles based on [(NPN)NiH]+ and [(NPN)NiSiR3]+ active species, with the latter being