Organocatalytic asymmetric tandem condensation–intramolecular rearrangement–protonation: an approach to optically active α-amino thioester derivatives
作者:Francesca Capitta、Angelo Frongia、Pier Paolo Piras、Patrizia Pitzanti、Francesco Secci
DOI:10.1039/c1ob06623d
日期:——
An unprecedented and conceptually novel chiral Brønsted base/Brønsted acid catalytic method for the enantioselective synthesis of α-amino thioesters through a tandem condensation–intramolecular rearrangement–protonation has been developed which provides a number of important synthetic building blocks in good yield and with moderate to good enantioselectivities.
前所未有的,概念上新颖的手性布朗斯台德碱/布朗斯台德酸催化方法,用于对映体的合成 α-氨基 通过串联缩合-分子内重排-质子化反应开发了硫代酸酯,它提供了许多重要的合成构件,具有良好的收率和中等至良好的对映选择性。