AgSbF6-controlled diastereodivergence in alkyne hydroarylation: facile access to Z- and E-alkenyl arenes
作者:Minsik Min、Donghee Kim、Sungwoo Hong
DOI:10.1039/c4cc03602f
日期:——
AgSbF6-controlled diastereodivergent hydroarylation reactions were developed. Unprecedented and remarkable switching of the E/Z-stereoselectivity could be obtained by adjusting the AgSbF6 loading.
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.