Abstract
AbstractOrganolithium reagents are one of the most widely used reagents in chemical synthesis. Herein, we reported the first study of organolithium reagents used in asymmetric allylic alkylation (AAA) reactions with racemic cyclic substrates. A simple and efficient Cu‐catalyzed synthesis of enantiomerically enriched cycloalkene derivatives from various racemic cyclic allylic bromides was developed. The standard method employed 5 % CuBr⋅SMe2 in combination with phosphoramidite ligand L2 in DCM. Meanwhile, transfer of the reactions into flow condition for more convenient application was also studied. This new Cu‐catalyzed protocol was speculated to undergo an enantioconvergent transformation mechanism here.
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