Site‐Selective 1,2‐Dicarbofunctionalization of Vinyl Boronates through Dual Catalysis.

A modular, site‐selective 1,2‐dicarbofunctionalization of vinyl boronates with organic halides through dual catalysis is described. This reaction proceeds under mild conditions and is characterized by excellent chemo‐ and regioselectivity. It thus represents a complementary new technique for preparing densely functionalized alkyl boron architectures from simple and accessible precursors. [ABSTRACT FROM AUTHOR]