Modulating stereoselectivity in allylic C(sp3)-H bond arylations via nickel and photoredox catalysis

The selective construction of C-C double bonds in alkenes, which can be one of two isomers, is a fundamental focus of organic chemistry. Here, the authors systematically investigated the stereoselectivity in allylic C(sp3)-H bond arylations and demonstrated a ligand switch could allow a stereodivergent synthesis of silyl enol ethers.