Dehydrogenative silylation of alkenes with silanes to produce allylsilanes is achieved through manganese catalysis with a wide scope of substrate tolerance. This transformation involves silane radicals initiated by manganese complex without addnl. oxidant additives.

2014年7月28日 · The aryl-substituted bis(imino)pyridine cobalt methyl complex, (Mes PDI)CoCH 3 (Mes PDI = 2,6-(2,4,6-Me 3 C 6 H 2-N═CMe) 2 C 5 H 3 N), promotes the catalytic dehydrogenative silylation of linear α-olefins to selectively form the corresponding allylsilanes with commercially relevant tertiary silanes such as (Me 3 SiO) 2 MeSiH and (EtO) 3 SiH.

2020年12月14日 · In this study, we report a general and simple method for the manganese-catalysed dehydrosilylation and hydrosilylation of alkenes, with Mn 2 (CO) 10 as a catalyst precursor, by using a ligand-tuned...

2022年5月15日 · In this pioneering protocol, the silyl ethers containing Si–H moieties are generated in the first step via Ir-catalyzed dehydrogenative silylation of alcohols or hydrosilylation of ketones.

2021年10月11日 · In this article, we report on the catalytic silylation of alkynylsilanes with hydrosilanes for the selective formation of several symmetrical and unsymmetrical silylacetylenes, by using cobalt complexes stabilized by PN5P ligands as the (pre)catalysts (Scheme 1).

2011年12月29日 · Instead of the product expected from the well-known hydrosilylation reaction, the product obtained is that characteristic of dehydrogenative silylation at one vinyl group and hydrogenation at the other vinyl group of 1,3-divinyldisiloxane. Based on deuterium labeling experiments, a catalytic cycle for this new reaction has been proposed.

2023年10月20日 · Selective dehydrogenative silylation is one of the most valuable tools for synthesizing organosilicon compounds. In this study, a regio- and stereoselective ruthenium-catalyzed dehydrogenative intermolecular silylation was firstly developed to access (E)-alkenyl silyl-ether derivatives and silyl-ether heterocycles with good functional group ...

2019年6月5日 · A synergistic catalytic method of combining photoredox catalysis, hydrogen-atom transfer, and proton-reduction catalysis for the dehydrogenative silylation of alkenes was developed. The reaction features high regioselectivity, excellent tolerance of functional groups, wide substrate scope, and mild reaction conditions.

2020年6月25日 · Dehydrogenative silylation of alkenes with silanes to produce allylsilanes is achieved through manganese catalysis with a wide scope of substrate tolerance. This transformation involves silane radicals initiated by manganese …

2020年1月1日 · The actual aryl Si–H/C–H silylation is a dehydrogenative coupling catalyzed by platinum, iridium, or rhodium complexes, presumably proceeding through formation of a cyclometalated species. Higher yields are usually obtained when a sacrificial H 2 acceptor (e.g., norbornene) is added to the reaction mixture because hydrogen is released as a ...