Treatment of (E)-alk-1-enyldicyclohexylborane 1 with B-methoxy-9-borabicyclo[3.3.1]nonane (B-MeO-9-BBN) at 0 °C results in transfer of alk-1-enyl group from boron to boron to give B-[(E)-alk-1-enyl]-9-BBN 2 with retention of configuration.
在 0 °C 下用 B-methoxy-9-borabicyclo[3.3.1]nonane (B-MeO-9-BBN) 处理 (E)-alk-1-enyldicyclohexylborane 1,导致 alk-1-enyl 基团从
硼与
硼反应得到 B-[(E)-alk-1-enyl]-9-BBN 2 并保留构型。