Iodine-mediated aryl transfer reaction from arylhydrazine hydrochlorides to nitriles
作者:Zhiguo Zhang、Xiang Li、Yinghua Li、Yan Guo、Xunan Zhao、Yan Yan、Kai Sun、Guisheng Zhang
DOI:10.1016/j.tet.2019.05.034
日期:2019.6
An iodine-promoted, metal-, base-, and solvent-free cross-coupling reaction was developed for the synthesis of various useful secondary amides via an aryl N-addition reaction of aryl groups to cyano groups. This aryl transfer reaction proceeds with arylhydrazine hydrochlorides serving as the aryl donors. A labelling experiment shows that the N atom in the product comes from the cyano group of the nitriles
通过芳基与氰基的芳基N加成反应,开发了碘促进的,无金属,无碱和无溶剂的交叉偶联反应,用于合成各种有用的仲酰胺。该芳基转移反应与用作芳基供体的芳基肼盐酸盐一起进行。标记实验表明,产物中的N原子来自腈的氰基,它们的成本较低。还提出了一种可行的自由基驱动机制。