Palladium-Catalyzed Cross-Coupling of Monochlorosilanes and Grignard Reagents
作者:Bojan Vulovic、Andrew P. Cinderella、Donald A. Watson
DOI:10.1021/acscatal.7b03465
日期:2017.12.1
of the Si–Cl bond (113 kcal/mol) and is a rare example of a transition-metal catalyzed process involving its activation. Because of the availability of both chlorosilanes and organomagnesium halide reagents, this method allows for the preparation of a wide range of alkyl and aryl silanes.
Intramolecular reactions of (alkenyldimethylsilyl)carbenes
作者:John W. Connolly、Paul F. Fryer
DOI:10.1016/s0022-328x(00)87515-4
日期:1971.8
The reaction between compounds of the type [CH2CH(CH2)n](CH3)2SiCH2Cl and sodium has been studied. Intermediacy of the corresponding carbene (or carbenoid reagent) is proposed and evidence for intramolecularcarbene addition to the olefinic linkage is presented in the case where n=0, 2 and 3.
Effect of Ether on Regioselectivity in Hydrosilylation of 1,5-Hexadiene with Chlorohydrosilanes Catalyzed by Homogeneous Platinum Catalysts
作者:Takeaki Saiki
DOI:10.1080/10426500701693388
日期:2008.6.9
Hydrosilylation of 1,5-hexadiene with chlorohydrosilanes catalyzed by homogeneous platinum catalyst to produce 5-hexenylchlorosilanes was studied. The presence of ether additives was highly effective in improving the regioselectivity and the yield. The formation of a double-bond rearrangement isomer, cis-, or trans-4-hexenylchlorosilanes, during the hydrosilylation was reduced drastically, as well
[EN] PROCESSES FOR SYNTHESIZING UNSYMMETRICAL DISILOXANES<br/>[FR] PROCÉDÉS DE SYNTHÈSE DE DISILOXANES ASYMÉTRIQUES
申请人:DOW SILICONES CORP
公开号:WO2021119437A1
公开(公告)日:2021-06-17
Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with an alkyl halosilane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the alkyl halosilane is about 10:1 to about 1:10. The alkenyl halosilane and the alkyl halosilane are mixed at about 20 °C to about 45 °C. The reaction product is separated and washed with saturated alkali carbonate solution.
Reversible Immobilization of a Molecular Catalyst and Challenges of Catalyst Characterization
作者:R. Palkovits、D. Arlt、H. Stepowska、F. Schüth
DOI:10.1002/chem.200802389
日期:2009.9.14
The immobilization of molecularcatalysts on support materials enables the combination of easy separation of solid catalysts with the high activity and selectivity of molecularcatalysts. We have been able to apply a cross‐metathesis reaction between terminal olefins, as versatile tool with which to reversibly immobilize ligands and complexes on a support material. Diphosphine ligands and corresponding