A highly regio- and stereoselective transition metal-catalyzed hydrosilylation of terminal alkynes under ambient conditions of air, water, and room temperature
作者:Wei Wu、Chao-Jun Li
DOI:10.1039/b302259e
日期:——
A highly efficient and stereoselectivehydrosilylation of terminalalkynes was developed at room temperature in air and water.
在室温下在空气和水中开发了末端炔烃的高效和立体选择性氢化硅烷化。
Manganese-catalysed divergent silylation of alkenes
challenge in organic synthesis, with current methods suffering from low selectivity and narrow scope. In this study, we report a general and simple method for the manganese-catalysed dehydrosilylation and hydrosilylation of alkenes, with Mn2(CO)10 as a catalyst precursor, by using a ligand-tuned metalloradical reactivity strategy. This enables versatility and controllable selectivity with a 1:1 ratio
A Platinum Molecular Complex Immobilised on the Surface of Graphene as Active Catalyst in Alkyne Hydrosilylation
作者:Andres Mollar‐Cuni、Pilar Borja、Santiago Martin、Gregorio Guisado‐Barrios、Jose A. Mata
DOI:10.1002/ejic.202000356
日期:2020.12.7
A platinum complex bearing a N‐heterocycliccarbene (NHC) ligand functionalised with a pyrene‐tag is immobilised onto the surface of reduced graphene oxide (rGO). The hybrid material composed of an organometallic complex and a graphene derivative is ready available in a single‐step process under mild reaction conditions. This methodology preserves the inherent properties of the active catalytic centre
Carbon supported hybrid catalysts for controlled product selectivity in the hydrosilylation of alkynes
作者:Max Roemer、Vinicius R. Gonçales、Sinead T. Keaveney、Indrek Pernik、Jiaxin Lian、James Downes、J. Justin Gooding、Barbara A. Messerle
DOI:10.1039/d0cy02136a
日期:——
A series of Rh- and Ir-hybrid catalysts with varying tether lengths has been prepared by immobilization of RhI, RhIII and IrIII complexes on carbon black via radical grafting. The performance of the different catalysts was assessed for the hydrosilylation of phenylacetylene with Et3SiH. The efficiency of the catalysts was dependent on the length of the tethers to the surface. The RhIII- and IrIII hybrids