Base-Promoted C→N Acyl Rearrangement: An Unconventional Approach to α-Amino Acid Derivatives
作者:Iratxe Ugarriza、Uxue Uria、Luisa Carrillo、Jose L. Vicario、Efraim Reyes
DOI:10.1002/chem.201402514
日期:2014.9.8
N‐alkyl aminomalonates undergo a fast and selective intramolecular C→N acyl rearrangement reaction in the presence of a strong base, leading to N‐protected glycinates in excellent yield. Moreover, the fact that the reaction proceeds through a nucleophilic enolate intermediate has been used for implementing a tandem rearrangement/alkylation sequence that has been applied to the preparation of synthetically
我们发现,在强碱的存在下,N-烷基氨基丙二酸酯会进行快速且选择性的分子内C→N酰基重排反应,从而以极高的收率得到N-保护的甘氨酸盐。此外,反应通过亲核的烯醇式中间体进行的事实已被用于实施串联重排/烷基化序列,该序列已被用于以非常简单和简单的方式制备合成上相关的非蛋白的叔N-烷基和叔N-烷基α-氨基酸。可靠的方法。