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An efficient kinetic resolution (KR) protocol for 1,2‐diamines has been developed through asymmetric electrophilic aminations of anilines enabled by chiral phosphoric acid catalysis. A wide array of substituted 1,2‐diamines were compatible with this method, generating both the recovered staring materials and the amination products with high enantioselectivities (with s‐factor up to 218). Notably,...
An efficient method for asymmetric synthesis of acyclic α‐tertiary amine derivatives has been achieved through enantioselective aminations of α‐branched ynones with azodicarboxylates enabled by chiral phosphoric acid catalysis. Moreover, kinetic resolution of racemic starting material was realized under these conditions, which gave access to valuable enantioenriched α‐substituted ketones. A wide array...
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