sp2-sp3 hybridized mixed diboron: synthesis, characterization, and copper-catalyzed beta-boration of alpha,beta-unsaturated conjugated compounds.
A novel sp(2)-sp(3) hybridized mixed diboron and its reactivity on the copper-catalyzed beta-boration of alpha,beta-unsaturated conjugated compounds to afford the corresponding beta-borated compounds is reported. The presence of sp(3)-hybridized boron provides a mild beta-boration condition in the absence of phosphine and base additives. Finally, our investigations demonstrate that the sp(2)-hybridized boron of the mixed diboron is selectively transferred to the beta-carbon of conjugated substrates.
Gao
Ming
M
Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
Thorpe
Steven B
SB
Santos
Webster L
WL
D001895:Boron / Q000737:chemistry*; D001896:Boron Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D003300:Copper / Q000737:chemistry*
D001896:Boron Compounds; D002244:Carbon; D003300:Copper; D001895:Boron