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Novel asymmetric mono‐ and dialkylation reactions of α‐substituted 2,5‐diketopiperazines catalyzed by new chiral spirocyclic‐amide‐derived triazolium organocatalysts have been developed, resulting in a range of enantioenriched 2,5‐diketopiperazine derivatives containing one or two tetrasubstituted carbon stereocenters. The reactions feature high yields (up to 98%), and excellent cis‐diastereo‐ and...
Novel asymmetric mono‐ and dialkylation reactions of α‐substituted 2,5‐diketopiperazines catalyzed by new chiral spirocyclic‐amide‐derived triazolium organocatalysts have been developed, resulting in a range of enantioenriched 2,5‐diketopiperazine derivatives containing one or two tetrasubstituted carbon stereocenters. The reactions feature high yields (up to 98%), and excellent cis‐diastereo‐ and...
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