title: Rearrangement/Fragmentation Reactions of Oligosilanes with Aluminum Chloride.
abstract: Reinvestigation of the Lewis acid catalyzed rearrangement of some open-chain permethyloligosilanes with the Al(Fe)Cl(3) catalyst system exhibited several cases of additional reactivity: namely, a fragmentation/cyclization reaction. Introduction of (trimethylsilyl)methyl substituents into the oligosilane substrates strongly facilitated this reaction, yielding cyclic or bicyclic carbacyclosilanes. Investigations concerning the composition of the catalyst system indicated that the incorporation of about 0.1% FeCl(3) into the AlCl(3) lattice provided an effective catalyst.
authors.affiliation: Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, A-8010 Graz, Austria.
authors.forename: Harald
authors.initials: H
authors.lastname: Wagner
authors.forename: Judith
authors.initials: J
authors.lastname: Baumgartner
authors.forename: Christoph
authors.initials: C
authors.lastname: Marschner
authors.forename: Peter
authors.initials: P
authors.lastname: Poelt