Copper catalysed protoboration of allenyl-Bdans: efficient synthesis of β-boryl allyl-Bdans

An efficient Cu-catalysed protoboration of allenyl-Bdans is presented. Under the optimized reaction conditions, a series of allenyl-Bdans reacted smoothly with B(2)Pin(2) to afford beta-boryl allyl-Bdans in moderate to high yields with excellent regio- and stereoselectivity.

Automated summary

An efficient Cu-catalysed protoboration of allenyl-Bdans has been developed, leading to moderate to high yields of β-boryl allyl-Bdans with excellent regio- and stereoselectivity.