title: Rhodium-catalyzed intramolecular [4 + 2] cycloadditions of alkynyl halides.
abstract: [reaction: see text] Cationic rhodium(I)-catalyzed intramolecular [4 + 2] cycloadditions of diene-tethered alkynyl halides were found to occur in good yields (70-87%). The halide moiety is compatible with the cycloaddition reactions, and no oxidative insertion to the alkynyl halide was observed. The halogen-containing cycloadducts could be transformed into a variety of products that are difficult or impossible to obtain via direct cycloaddition.
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: Woo-Jin
authors.initials: WJ
authors.lastname: Yoo
authors.forename: Anna
authors.initials: A
authors.lastname: Allen
authors.forename: Karine
authors.initials: K
authors.lastname: Villeneuve
authors.forename: William
authors.initials: W
authors.lastname: Tam