A metal‐free and direct alkene C−H cyanation is described. Directing groups are not required and the mechanism involves electrophilic activation of the alkene by a cyano iodine(III) species generated in situ from a [bis(trifluoroacetoxy)iodo]arene and trimethylsilyl cyanide as the cyanide source. This C−H functionalization can be conducted on gram scale, and for noncyclic 1,1‐ and 1,2‐disubstuted alkenes
Ni‐Catalyzed Cyanation of Allylic Alcohols with Formamide as the Cyano Source
作者:Lin‐Fang Deng、Jing Cheng、Jun‐Jia Chen、Luo Yang
DOI:10.1002/ejoc.202200339
日期:2022.7.7
Formamide as the safe cyanosource to replace toxic cyanide for the cyanation of unactivated allylicalcohols to provide various α,β-unsaturated nitriles was realized for the first time.