Rhodium-Catalyzed Oxidative Coupling Reaction of Isocyanides with Alcohols or Amines and Molecular Oxygen as Oxygen Source: Synthesis of Carbamates and Ureas
作者:Xiu-Bin Bu、Zhuo Wang、Yuan-Hong Wang、Tao Jiang、Lu Zhang、Yu-Long Zhao
DOI:10.1002/ejoc.201601484
日期:2017.2.17
The first Rh-catalyzed aerobic oxidative coupling reaction of isocyanides with alcohols or amines has been developed. The reaction takes place under very mild conditions, by using air as the terminal oxidant and oxygen-atom source. It provides a simple, efficient, and general method for the construction of N-arylcarbamates and ureas in an atom-economic manner. Moreover, the new mechanism, involving
已经开发了第一个 Rh 催化的异氰化物与醇或胺的有氧氧化偶联反应。该反应在非常温和的条件下进行,使用空气作为末端氧化剂和氧原子源。它为以原子经济的方式构建 N-芳基氨基甲酸酯和脲提供了一种简单、有效和通用的方法。此外,涉及作为卡宾前体的 α-重氮羰基化合物和 RhI/RhIII 与氧催化循环的新机制可能为铑化学开辟新的途径。