An Easily Accessed Nickel Nanoparticle Catalyst for Alkene Hydrosilylation with Tertiary Silanes
作者:Ivan Buslov、Fang Song、Xile Hu
DOI:10.1002/anie.201606832
日期:2016.9.26
non‐precious nanoparticlecatalyst for alkenehydrosilylation with commercially relevant tertiarysilanes has been developed. The nickelnanoparticlecatalyst was prepared in situ from a simple nickel alkoxide precatalyst Ni(OtBu)2⋅x KCl. The catalyst exhibits high activity for anti‐Markovnikov hydrosilylation of unactivated terminal alkenes and isomerizing hydrosilylation of internal alkenes. The catalyst
Diverse Alkyl–Silyl Cross-Coupling via Homolysis of Unactivated C(sp<sup>3</sup>)–O Bonds with the Cooperation of Gold Nanoparticles and Amphoteric Zirconium Oxides
the degradation of polyesters and the synthesis of organosilanes were realized concurrently by the unique catalysis of supported gold nanoparticles. Mechanistic studies corroborated the notion that the generation of alkyl radicals is involved in C(sp3)–Si coupling and the cooperation of gold and an acid–base pair on ZrO2 is responsible for the homolysis of stable C(sp3)–O bonds. The high reusability and