A Broad Substrate Scope of Aza-Friedel–Crafts Alkylation for the Synthesis of Quaternary α-Amino Esters
作者:Guangkuan Zhao、Shyam S. Samanta、Jessica Michieletto、Stéphane P. Roche
DOI:10.1021/acs.orglett.0c01895
日期:2020.8.7
aza-Friedel–Crafts alkylation has been developed for the synthesis of quaternary α-amino esters. This operationally simple alkylation proceeds under ambient conditions with high efficiency, regioselectivity, and an exceptionally broad scope of arene nucleophiles. A key feature of this alkylation is the role associated with the silver(I) salt counteranions liberated during the reaction. Taking advantage
已经开发了一种用于合成季 α-氨基酯的 aza-Friedel-Crafts 烷基化的通用合成方案。这种操作简单的烷基化在环境条件下以高效率、区域选择性和极其广泛的芳烃亲核试剂进行。这种烷基化的一个关键特征是与反应过程中释放的银 (I) 盐抗衡阴离子相关的作用。利用相转移反阴离子/布朗斯台德酸对机制,我们还报告了该反应的催化对映选择性示例。