An Efficient Synthesis of Achiral and Chiral Cyclic Dehydro-α-Amino Acid Derivatives Through Nucleophilic Addition of Amines to β,γ-Unsaturatedα-Keto Esters
作者:Francisco Palacios、Javier Vicario、Domitila Aparicio
DOI:10.1002/ejoc.200600092
日期:2006.6
A very simple and efficient synthesis of 3-amino-1,5-dihydro-2H-pyrrol-2-ones is reported. These cyclic dehydro-amino acid derivatives with a stereogenic center at the 5-position were obtained by the addition of two equivalents of amine to β,γ-unsaturated keto esters. These cyclic enamines can also be obtained by the three-component reaction of ethyl pyruvate, amines and aldehydes. (© Wiley-VCH Verlag
报告了一种非常简单有效的 3-amino-1,5-dihydro-2H-pyrrol-2-ones 合成方法。这些在 5 位具有立体中心的环状脱氢氨基酸衍生物是通过将两当量的胺添加到 β,γ-不饱和酮酯中获得的。这些环状烯胺也可以通过丙酮酸乙酯、胺和醛的三组分反应得到。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)