作者:Nagaraju Mupparapu、Narsaiah Battini、Satyanarayana Battula、Shahnawaz Khan、Ram A. Vishwakarma、Qazi Naveed Ahmed
DOI:10.1002/chem.201405477
日期:2015.2.9
on the ability of such iminium cations to promote reactions via an iminium‐catalyzed or iminium‐equivalent pathway are apparently unavailable. Previously, tandem cross‐coupling reactions were reported, in which an iminium ion undergoes nucleophilic 1,2‐addition to give a putative three‐component intermediate that abstracts a proton in situ and undergoes self‐deamination followed by unprecedented DMSO/aerobic
鉴于亚胺离子具有直接在表面上不反应的位置上官能化分子的吸引力,因此亚胺离子的反应性(其中αCH 2探索了用CO代替该基团的方法。显然尚无有关此类亚胺阳离子通过亚胺催化或亚胺等效途径促进反应的能力的背景研究。以前,曾报道过串联交叉偶联反应,其中亚胺离子经历亲核1,2-加成反应,产生推定的三组分中间体,该中间体原位提取质子并进行自我脱氨,然后进行空前的DMSO /好氧氧化生成α-酮酰胺。但是,后来发现亚胺离子可通过简单的好氧氧化反应生成有价值的α-酮酰胺。在所有反应中,亚氨基离子是由2-氧醛与仲胺反应原位生成的。