Ruthenium-Catalyzed <i>ortho</i>-Alkenylation of Phenylphosphine Oxides through Regio- and Stereoselective Alkyne Insertion into C–H Bonds
作者:Masaki Itoh、Yuto Hashimoto、Koji Hirano、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/jo401393b
日期:2013.8.16
Direct ortho-substitution took place efficiently upon treatment of tri-, di-, and monoarylphosphine oxides with internal alkynes in the presence of a ruthenium catalyst to produce (o-alkenylphenyl)phosphine oxides regio- and stereoselectively. Chemoselective reduction of a product gave the corresponding (o-alkenylphenyl)phosphine, which may be useful as a ligand for transition metals.
在钌催化剂的存在下,用内部炔烃处理三,二和单芳基膦氧化物有效地进行直接邻位取代,从而选择性和立体选择性地生成(邻链烯基苯基)膦氧化物。化学选择性还原产物得到相应的(邻链烯基苯基)膦,其可用作过渡金属的配体。