作者:Takuji Kawamoto、Aoi Sato、Ilhyong Ryu
DOI:10.1002/chem.201503164
日期:2015.10.12
Transition metal‐catalyzed aminocarbonylation of aryl halides with CO and amines, pioneered by Heck and co‐workers in the 1970s, is among the most commonly employed reactions to make aromatic amides. A catalyst‐free aminocarbonylation of aryl iodides with CO and amines, which simply uses photoirradiation conditions by Xe‐lamp, has now been developed. This methodology shows broad functional‐group tolerance
Heck及其同事在1970年代率先提出,过渡金属催化的卤化芳基卤化物与CO和胺的氨基羰基化反应是制备芳族酰胺最常用的反应之一。现已开发出仅使用Xe-lamp的光辐照条件,就可以用CO和胺进行无碘芳基碘的氨基羰基化反应。该方法论显示了广泛的功能基团耐受性,包括杂芳族酰胺的耐受性。提出了一种自由基/离子杂化链机理,涉及电子从两性离子自由基中间体的转移,该中间体是由胺的亲核攻击生成的芳酰基自由基。