title: Alkyne cycloaddition to a titanocene oxide as a route to cyclopentadienyl modification.
abstract: Addition of terminal or internal alkynes to a base-free titanocene oxide results in synthesis of the corresponding oxometallocyclobutene. With appropriate cyclopentadienyl substitution, these compounds undergo reversible C-C reductive elimination offering a unique approach to cyclopentadienyl modification.
authors.affiliation: Princeton University, Princeton (USA).
authors.forename: Iraklis
authors.initials: I
authors.lastname: Pappas
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Chirik
keywords: cycloaddition; group transfer; oxo ligands; titanium