Dw. Ma et K. Ding, Synthesis of enantiopure alpha,alpha-disubstituted amino acids from the asymmetric Strecker reaction products of aldehydes, ORG LETT, 2(16), 2000, pp. 2515-2517
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Treatment of the enolates of 4 generated from the asymmetric Strecker react
ion products with alkyl halides or aldehydes provided the corresponding fun
ctionalized products with high diastereoselectivity. Deprotection of these
products afforded the corresponding enantiopure alpha,alpha-dialkyl amino a
cids.