Self-reproduction of chirality. Asymmetric synthesis of β-alkyl-β-amino acids from enantiomerically pure dihydropyrimidinones
作者:Kent S. Chu、Joseph P. Konopelski
DOI:10.1016/0040-4020(93)80005-e
日期:1993.1
Enantiomericallypure heterocycle 2 is deprotonated at C6 with tert-butyllithium at -78 °C. The resulting carbanion reacts with alkyl halides and aldehydes to give the corresponding alkylated products. Reduction of the double bond followed by hydrolysis affords enantiomericallypure β-alkyl-β-amino acids.