title: Base-free dehydrogenative coupling of enolizable carbonyl compounds with silanes.
abstract: A dehydrogenative coupling between enolizable carbonyl compounds and equimolar amounts of triorganosilanes catalyzed by a tethered ruthenium complex with a Ru-S bond is reported. The complex is assumed to fulfill a dual role by activating the Si-H bond to release a silicon electrophile and by abstracting an α-proton from the intermediate silylcarboxonium ion, only liberating dihydrogen as the sole byproduct. Reaction rates are exceedingly high at room temperature with very low loadings of the ruthenium catalyst.
authors.affiliation: Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany.
authors.forename: C David F
authors.initials: CD
authors.lastname: Königs
authors.forename: Hendrik F T
authors.initials: HF
authors.lastname: Klare
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ohki
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Tatsumi
authors.forename: Martin
authors.initials: M
authors.lastname: Oestreich