title: Synthesis of vinylphosphines and unsymmetric diphosphines: iron-catalyzed selective hydrophosphination reaction of alkynes and vinylphosphines with secondary phosphines.
abstract: Iron complex-catalyzed regioselective single hydrophosphination of terminal arylalkynes with secondary phosphines was achieved. Unsymmetric 1,2-bis(phosphino)ethanes with different phosphino groups were obtained by using our catalytic systems. The structures of the obtained vinylphosphine, unsymmetric 1,2-bis(phosphino)ethane, and iron catalyst precursors were confirmed by single crystal X-ray diffraction studies.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. mitazaki@sci.osaka-cu.ac.jp nakazawa@sci.osaka-cu.ac.jp.
authors.forename: Masumi
authors.initials: M
authors.lastname: Itazaki
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. mitazaki@sci.osaka-cu.ac.jp nakazawa@sci.osaka-cu.ac.jp.
authors.forename: Shinya
authors.initials: S
authors.lastname: Katsube
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. mitazaki@sci.osaka-cu.ac.jp nakazawa@sci.osaka-cu.ac.jp.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kamitani
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. mitazaki@sci.osaka-cu.ac.jp nakazawa@sci.osaka-cu.ac.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakazawa