Peptide Catalyzed Asymmetric Conjugate Addition Reactions of Aldehydes to Nitroethylene—A Convenient Entry into γ<sup>2</sup>-Amino Acids
作者:Markus Wiesner、Jefferson D. Revell、Sandro Tonazzi、Helma Wennemers
DOI:10.1021/ja801027s
日期:2008.4.1
The peptide H-D-Pro-Pro-Glu-NH2 is a highly effective catalyst for conjugateadditionreactions between aldehydes and nitroethylene. Only 1 mol % of H-d-Pro-Pro-Glu-NH2 and a 1.5-fold excess of aldehyde with respect to nitroethylene suffice to obtain gamma-nitroaldehydes and, after reduction, monosubstituted gamma-nitroalcohols in excellent yields and optical purities. The products can be readily converted