作者:Fulvia Felluga、Walter Baratta、Lidia Fanfoni、Giuliana Pitacco、Pierluigi Rigo、Fabio Benedetti
DOI:10.1021/jo900271x
日期:2009.5.1
alcohols of opposite absolute configuration were obtained by a baker’s yeast reduction of the ketones and by lipase-mediated dynamic kinetic resolution of the racemic alcohols. Their transformation into homochiral 1-methyl-1-heteroarylethanamines occurred without loss of optical purity, giving access to pincer ligands used in enantioselective catalysis.
基于6-苯基-2-氨基甲基吡啶和2-氨基甲基苯并[ h ]喹啉骨架的手性,非外消旋钳配体是通过化学酶法从2-吡啶基和2-苯并喹啉基乙酮开始获得的。在对映异构化步骤中,通过面包酵母的酮还原和脂肪酶介导的消旋外消旋醇的分解,获得了具有相反绝对构型的仲醇。它们转化为高手性的1-甲基-1-杂芳基乙胺类而不会损失光学纯度,从而可以使用对映选择性催化中的钳位配体。