An unsymmetrical diboron,(pin)B–B(aam),is smoothly added across a carbon–carbon triple bond of various terminal alkynes under platinum catalysis,resulting in the regio-and stereoselective formation of cis-vic-dibory...An unsymmetrical diboron,(pin)B–B(aam),is smoothly added across a carbon–carbon triple bond of various terminal alkynes under platinum catalysis,resulting in the regio-and stereoselective formation of cis-vic-diborylalkenes via B(aam)-installation at the terminal carbon.The use of a highly electron-deficient triarylphosphine ligand,P(BFPy)_(3),is indispensable for the regiocontrol,and electron-deficiency in ligands has been proven to be closely correlated with the regioselectivity.展开更多
基金Jialun Li thanks the China Scholarship Council(CSC)for a PhD fellowship(202108050140).
文摘An unsymmetrical diboron,(pin)B–B(aam),is smoothly added across a carbon–carbon triple bond of various terminal alkynes under platinum catalysis,resulting in the regio-and stereoselective formation of cis-vic-diborylalkenes via B(aam)-installation at the terminal carbon.The use of a highly electron-deficient triarylphosphine ligand,P(BFPy)_(3),is indispensable for the regiocontrol,and electron-deficiency in ligands has been proven to be closely correlated with the regioselectivity.
