Stereoselective Reactions. XXXII. Enantioselective Deprotonation of 4-tert-Butylcyclohexanone by Fluorine-Containing Chiral Lithium Amides Derived from 1-Phenylethylamine and 1-(1-Naphthyl)ethylamine.
作者:Kazumasa AOKI、Kenji KOGA
DOI:10.1248/cpb.48.571
日期:——
examined using 1-phenylethylamine- and 1-(1-naphthyl)ethylamine-derived chiral lithium amides having an alkyl or a fluoroalkyl substituent at the amide nitrogen. The lithium amides having a 2,2,2-trifluoroethyl group on the amide nitrogen are easily accessible in both enantiomeric forms, and were found to induce good enantioselectivity in the present reaction.