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.