title: Five-membered metallacycles of titanium and zirconium--attractive compounds for organometallic chemistry and catalysis.
abstract: In these days a renaissance of metallacycles as an increasingly important class of organometallic compounds for synthetic and catalytic applications is evident, making such very attractive for a plethora of investigations. Titanocene and zirconocene bis(trimethylsilyl)acetylene complexes, regarded as three-membered metallacycles (1-metallacyclopropenes), present a rich chemistry towards unsaturated molecules. By elimination of the alkyne these complexes form by reaction with unsaturated compounds five-membered titana- and zirconacycles, all of which are relevant to stoichiometric and catalytic C-C coupling and cleavage reactions of unsaturated molecules.
authors.affiliation: Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Str. 29a, Germany. uwe.rosenthal@catalysis.de
authors.forename: Uwe
authors.initials: U
authors.lastname: Rosenthal
authors.forename: Vladimir V
authors.initials: VV
authors.lastname: Burlakov
authors.forename: Marc A
authors.initials: MA
authors.lastname: Bach
authors.forename: Torsten
authors.initials: T
authors.lastname: Beweries