Diverse enantioselective synthesis of hetero[7]helicenes via an organocatalyzed double annulation strategy
Tianren Qin,
Wansen Xie,
Wei Liu
et al.
Abstract:A highly efficient catalytic enantioselective double annulation protocol has been developed for the asymmetric synthesis of hetero[7]helicenes. This method involves a sequential chiral phosphoric acid (CPA)-catalyzed three-component double Povarov reaction...
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