title: Reactions of diaryldibromodisilenes with N-heterocyclic carbenes: formation of formal bis-NHC adducts of silyliumylidene cations.
abstract: Reactions of stable 1,2-dibromodisilenes ((E)-Ar(Br)Si=Si(Br)Ar) with N-heterocyclic carbenes (NHC) afforded NHC-arylbromosilylene adducts or bromide salts of the corresponding bis-NHC adducts of the formal arylsilyliumylidene cations ([ArSi:](+)). In some cases, an NHC was able to replace a bromide anion in the coordination sphere of the arylbromosilylene-NHC adduct.
authors.affiliation: Institute for Chemical Research, Kyoto University, Gokasho Uji, Kyoto 611-0011 (Japan), Fax: (+81) 774-3209; Kyoto University Pioneering Research Unit for Next Generation, Gokasho Uji, Kyoto 611-0011 (Japan).
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Agou
authors.forename: Naoki
authors.initials: N
authors.lastname: Hayakawa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Sasamori
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Matsuo
authors.forename: Daisuke
authors.initials: D
authors.lastname: Hashizume
authors.forename: Norihiro
authors.initials: N
authors.lastname: Tokitoh
keywords: N-heterocyclic carbenes; bromosilylenes; dibromodisilenes; reaction mechanisms; silyliumylidenes