Chiral Pyrrolidine Derivatives as Catalysts for the Enantioselective Addition of Diethylzinc to Aldehydes.
作者:Nobuo IKOTA、Hiroko INABA
DOI:10.1248/cpb.44.587
日期:——
A chiral hydroxylated pyrrolidine derivative (4) and an N-(2-mercaptoethyl)pyrrolidine derivative (1c) were synthesized from D-ribonolactone and were used as chiral catalyst ligands in the reaction of diethylzinc and aldehydes. High asymmetric induction of up to 95% ee was observed in the addition to aromatic aldehydes using the chiral hydroxylated pyrrolidine derivative 4.
合成了一个手性氢氧基吡咯烷衍生物(4)和一个N-(2-巯基乙基)吡咯烷衍生物(1c),这两个衍生物是从D-核糖内酯合成的,作为手性催化剂配体用于二乙基锌与醛的反应。在使用手性氢氧基吡咯烷衍生物4对芳香醛加成的反应中,观察到了高达95%的不对称诱导率(ee)。