title: Ruthenium-catalyzed [2 + 2] cycloadditions between bicyclic alkenes and alkynyl halides.
abstract: Ru-catalyzed [2 + 2] cycloadditions between norbornadiene and alkynyl halides were found to occur in moderate to good yields (32-89%). The presence of the halide moiety greatly enhances the reactivity of the alkyne component in the cycloaddition and can be transformed into a variety of products that are difficult or impossible to obtain via direct cycloaddition. [reaction: see text]
authors.affiliation: Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1.
authors.forename: Karine
authors.initials: K
authors.lastname: Villeneuve
authors.forename: Nicole
authors.initials: N
authors.lastname: Riddell
authors.forename: Robert W
authors.initials: RW
authors.lastname: Jordan
authors.forename: Gavin C
authors.initials: GC
authors.lastname: Tsui
authors.forename: William
authors.initials: W
authors.lastname: Tam