Asymmetric aldol reactions of aliphatic ketones or aldehydes with aromatic aldehydes or isatins were
catalyzed by a very simple and flexible N -(2,6-difluorophenyl)-L-vali namide. Interestingly, stereochemical course of the reaction of hydroxyacetones or a-branched aliphatic aldehyde s as aldol donors was
different from that of cycloalkanones