1450594-40-7Relevant articles and documents
Efficient alkene hydrosilation with bis(8-quinolyl)phosphine (NPN) nickel catalysts. The dominant role of silyl-over hydrido-nickel catalytic intermediates
Clot, Eric,Eisenstein, Odile,Fasulo, Meg,Lipschutz, Michael I.,Postils, Verònica,Raynaud, Christophe,Tilley, T. Don,Yang, Jian
, p. 5043 - 5051 (2020/06/09)
A cationic nickel complex 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 more efficient for producing the product. The preferred silyl-based catalysis is not due to a more facile insertion of alkene into the Ni-Si (vs.Ni-H) bond, but by consistent and efficient conversions of the hydride to the silyl complex.