title: Reactions of cycloproparenes with metal carbenes.
abstract: [figure: see text] Benzocyclopropene and cyclopropa[b]naphthalene react with dichloro-bis(tricyclohexylphosphine)methylideneruthenium, incorporating the metallacarbene to form unstable 3-ruthenacyclopentenes, which decompose to give o-xylylenes that can be trapped as Diels-Alder adducts by dimethyl acetylenedicarboxylate. In contrast, bis(eta 5-cyclopentadienyl)methylidenetitanium forms moderately stable 2- and 3-titanacyclopentene complexes.
authors: Department of Chemistry, Rice University, Houston, Texas 77005-1892, USA.
authors: V A
authors: VA
authors: Litosh
authors: R K
authors: RK
authors: Saini
authors: I Y
authors: IY
authors: Guzman-Jimenez
authors: K H
authors: KH
authors: Whitmire
authors: W E
authors: WE
authors: Billups