title: Highly regio- and stereoselective carbostannylation reaction of fluorine-containing internal acetylenes with allylstannanes.
abstract: Carbostannylation of fluoroalkylated alkynes with various allylstannanes in the presence of AIBN was investigated. In the case of the allylstannane having an electron-withdrawing group at the beta position, the reaction proceeded highly regio- and stereoselectively to give the corresponding allylstannylated products in high yields. Even in the absence of AIBN, the reaction took place smoothly in a highly regio- and stereoselective manner under an atmosphere of air. Thus-obtained vinylstannanes were subjected to the Migita-Kosugi-Stille coupling reaction conditions, affording the tetrasubstituted alkenes in excellent yields.
authors.affiliation: Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. konno@chem.kit.ac.jp
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Konno
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Takehana
authors.forename: Jungha
authors.initials: J
authors.lastname: Chae
authors.forename: Takashi
authors.initials: T
authors.lastname: Ishihara
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yamanaka