Palladium(I) Dimer Enabled Extremely Rapid and Chemoselective Alkylation of Aryl Bromides over Triflates and Chlorides in Air
作者:Indrek Kalvet、Theresa Sperger、Thomas Scattolin、Guillaume Magnin、Franziska Schoenebeck
DOI:10.1002/anie.201701691
日期:2017.6.12
Disclosed herein is the first general chemo- and site-selective alkylation of C-Br bonds in the presence of COTf, C-Cl and other potentially reactive functional groups, using the air-, moisture-, and thermally stable dinuclear PdI catalyst, [Pd(μ-I)PtBu3 ]2 . The bromo-selectivity is independent of the substrate and the relative positioning of the competing reaction sites, and as such fully predictable
本文公开的是在 COTf、C-Cl 和其他潜在反应性官能团存在下,使用空气稳定、水分稳定和热稳定的双核 PdI 催化剂,对 C-Br 键进行第一个常规化学和位点选择性烷基化,[ Pd(μ-I)PtBu3]2 。溴选择性与底物和竞争反应位点的相对位置无关,因此完全可预测。在室温和开瓶反应条件下以极高的速度(<5 分钟反应时间)引入伯烷基链和仲烷基链。