The first enantioselective copper-catalyzed conjugate addition of α-substituted benzyl nitriles to alkyl acrylates is described. This protocol allows the direct and 100% atom-economic generation of a nitrile-containing quaternary stereogenic center in a highly enantioselective manner. The practical application of our methodology was demonstrated through the concise formal synthesis of (−)-aphanorphine.
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Samanta et al. (2024) studied this question.
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