Gold N‐Heterocyclic Carbene Catalysts for the Hydrofluorination of Alkynes Using Hydrofluoric Acid: Reaction Scope, Mechanistic Studies and the Tracking of Elusive Intermediates
作者:Raphaël Gauthier、Nikolaos V. Tzouras、Ziyun Zhang、Sandrine Bédard、Marina Saab、Laura Falivene、Kristof Van Hecke、Luigi Cavallo、Steven P. Nolan、Jean‐François Paquin
DOI:10.1002/chem.202103886
日期:2022.1.19
Unconventional fluorination: The development of the chemoselective gold-catalysed hydrofluorination of terminal alkynes using aqueous HF and an easily accessible N-heterocyclic carbene-gold pre-catalyst is reported. Following the observation and isolation of unprecedented organometallic intermediates and computational studies, a catalytic cycle is proposed, featuring an in situ generation of the chemoselective
非常规氟化:报道了使用 HF 水溶液和易于获得的 N-杂环卡宾-金预催化剂对末端炔烃进行化学选择性金催化氢氟化反应。在观察和分离前所未有的有机金属中间体和计算研究之后,提出了一种催化循环,其特点是原位生成化学选择性催化剂。