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- W2952647260 abstract "A highly stereo- and regioselective silylative coupling of styrene and p-substituted styrenes with trisubstituted vinylsilanes, siloxanes, and divinyl-substituted silicon compounds catalyzed by [{(cod)Rh(μ-OSiMe3)}2] (I) is reported. The reaction proceeds even at room temperature to give respective E-silyl(siloxyl)styrenes. Quantitative syntheses of silylstyrenes are mostly observed at 60 °C and siloxystyrenes at 90 °C. A labeling study (GC−MS analysis) with the deuterated styrene indicates the exchange of the vinylic proton and suggests the non-metallacarbene mechanism of the reaction proceeding via generation of active metal-hydride species by oxidative addition of C−H to siloxy−rhodium complex Ia. The kinetic measurements allow us to propose the dissociative mechanism of the silylative coupling, which does not involve migratory insertion of olefin into the Rh−Si bond." @default.
- W2952647260 created "2019-06-27" @default.
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- W2952647260 date "2001-07-12" @default.
- W2952647260 modified "2023-10-14" @default.
- W2952647260 title "Activation of the Vinylic C−H Bond of Styrene by a Rhodium−Siloxide Complex: The Key Step in the Silylative Coupling of Styrene with Vinylsilanes" @default.
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- W2952647260 doi "https://doi.org/10.1021/om0100683" @default.
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