Catalytic hydrogenation of olefins containing functionalized
were prepared from the cyclopentenyl-substituted precursors 10 and 12. The 3-vinyl-substituted silacyclobutanes 15, 17, silicon groups affords the saturated products in good yields. Chloro and alkoxy substituents at the silicon atom remain and 18 were also hydrogenated in a simple apparatus with diethyl ether or THF as solvent, and Pd/C as a recoverable unaffected and, in the case of heterocyclic compounds, the cyclic or bicyclic moieties remain intact. The 2-catalyst system. A basic organosilicon compound, trichloro(vinyl)silane, is hydrogenated in a nearly silanorbornanes 4, 5, and 6 were synthesized from the corresponding 2-silanorbornenes 1, 2, and 3, and quantitative yield to form the saturated trichloro(ethyl)silane;
this emphasizes the general applicability of this method. organosilanes 13 and 14 possessing the cyclopentyl group, rivatives, since the catalyst (e.g. AdamЈs platinum or [ ] Part 34: Ref. [1] [a] Institut für Anorganische Chemie, Johann-Wolfgang-Goethe-For the hydrogenation of a series of silaheterocycles Pd/C Universität, was used as a catalyst at room temperature in ether or THF Marie-Curie-Str. 11, D-60439 Frankfurt am Main, Germany as solvent. Starting from the 2-silanorbornenes 1, and 2