Regioselective installation of enolizable ketones and unprotected mercaptoacetic acid into olefins using GO as a phase transfer catalyst
作者:Prashant Shukla、Manorama Singh、Vijai K. Rai、Ankita Rai
DOI:10.1039/d1nj05870c
日期:——
We report herein an unprecedented conjugate addition of enolizable ketones and unprotected mercaptoacetic acid to electron-poor alkenes using graphene oxide as a phase transfer catalyst. The envisaged protocol is versatile and applicable to structurally different Michael acceptors such as α,β-unsaturated aldehyde/ketone/acid/ester/amide/nitrile, and β-nitroalkene to afford their corresponding adducts
我们在此报道了使用氧化石墨烯作为相转移催化剂,将烯醇化酮和未保护的巯基乙酸与缺电子烯烃的前所未有的共轭加成。设想的协议是通用的,适用于结构不同的迈克尔受体,如 α、β-不饱和醛/酮/酸/酯/酰胺/腈和 β-硝基烯烃,以提供相应的加合物。产品操作简单的区域选择性、环境反应条件、优异的产品产率(高达 92%)和催化剂的可回收性高达五次而形态没有任何实质性变化以及催化效率是所设想协议的显着特征.