Nucleophilic Aromatic Substitution for Heteroatoms: An Oxidative Electrochemical Approach
作者:Iluminada Gallardo、Gonzalo Guirado、Jordi Marquet
DOI:10.1021/jo010847t
日期:2002.4.1
The nucleophilic aromatic substitution for heteroatom through electrochemical oxidation of the intermediate sigma-complexes (Meisenheimer complexes) in simple nitroaromatic compounds is reported for the first time (NASX process). The studies have been carried out with hydride, cyanide, fluoride, methoxy, and ethanethiolate anions and n-butylamine as a nucleophile, at the cyclic voltammetry (CV) and
首次报道了通过简单的硝基芳族化合物中的中间sigma-配合物(Meisenheimer配合物)的电化学氧化对杂原子进行亲核芳族取代(NASX工艺)。已经在循环伏安法(CV)和制备型电解水平下,以氢化物,氰化物,氟离子,甲氧基和乙硫醇根阴离子和正丁胺为亲核试剂进行了研究。循环伏安法实验可以检测和表征sigma复合物,它们使我们提出了氧化步骤机理的建议。此外,还介绍了CV技术在整个化学和电化学过程中对反应混合物进行分析的能力。