Cobalt-Catalyzed Enantioselective Synthesis of Chiral <i>gem</i>
-Bis(boryl)alkanes
作者:Wei Jie Teo、Shaozhong Ge
DOI:10.1002/anie.201805705
日期:2018.9.24
We report an asymmetric synthesis of enantioenriched gem‐bis(boryl)alkanes in an enantioselective diborylation of 1,1‐disubstituted alkenes catalyzed by Co(acac)2/(R)‐DM‐segphos. A range of activated and unactivated alkenes underwent this asymmetric diborylation in the presence of cyclooctene as a hydrogen acceptor, affording the corresponding gem‐bis(boryl)alkanes with high enantioselectivity. The