title: Regioselective [2 + 2 + 2] cycloaddition of a nickel-benzyne complex with 1,3-diynes.
abstract: [reaction: see text] Reactions of nickel(0)-benzyne complexes with a range of symmetrically substituted 1,3-diynes in the presence of triethylphosphine lead to the regioselective formation of 2,3-dialkynyl naphthalenes. The regioselectivity can be reversed when the diyne possesses substituents of high steric bulk, allowing selective formation of either symmetric dialkynyl naphthalene.
authors.affiliation: Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
authors.forename: Kimberly R
authors.initials: KR
authors.lastname: Deaton
authors.forename: Mary S
authors.initials: MS
authors.lastname: Gin