title: Structure of 4-sila-3-platinacyclobutene and its formation via Pt-promoted gamma-Si-H bond activation of 3-sila-1-propenylplatinum precursor.
abstract: 4-Sila-3-platinacyclobutene was isolated from the reaction of Pt(SiHPh2)2(PMe3)2 with dimethyl acetylenedicarboxylate (DMAD) and characterized by X-ray crystallography. The formation pathway was found to involve gamma-Si-H bond activation of the 3-sila-1-propenylplatinum intermediate that is formed by the insertion of a DMAD into a Pt-Si bond of Pt(SiHPh2)2(PMe3)2.
authors.affiliation: Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Tanabe
authors.forename: Kohtaro
authors.initials: K
authors.lastname: Osakada