title: Chromium-catalyzed arylmagnesiation of alkynes.
abstract: [reaction: see text] Arylmagnesiation of unfunctionalized alkynes in the presence of catalytic amounts of chromium(II) chloride and pivalic acid proceeds with high stereoselectivity. The alkenylmagnesium intermediate reacts with various electrophiles to afford the corresponding tetrasubstituted olefins in good yields.
authors.affiliation: Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Murakami
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Ohmiya
authors.forename: Hideki
authors.initials: H
authors.lastname: Yorimitsu
authors.forename: Koichiro
authors.initials: K
authors.lastname: Oshima