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Communication
Chem. Commun., 2003, 566 - 567, DOI: 10.1039/b211523a
Asymmetric protonation of lithium enolates of
-amino acid derivatives with -amino acid-based chiral Brønsted acidsKentaro Futatsugi, Akira Yanagisawa and Hisashi Yamamoto
The reaction of lithium enolates of
-amino acid derivatives with chiral amides, easily synthesized from L-tert-leucine, gives corresponding optically active unnatural -amino acid derivatives with up to 87% ee.
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