Directed Iridium‐Catalyzed Hydrogen Isotope Exchange Reactions of Phenylacetic Acid Esters and Amides
作者:Mégane Valero、Daniel Becker、Kristof Jess、Remo Weck、Jens Atzrodt、Thomas Bannenberg、Volker Derdau、Matthias Tamm
DOI:10.1002/chem.201901449
日期:2019.5.7
very mild reaction conditions is reported. Using a homogeneous iridium catalyst supported by a bidentate phosphine‐imidazolin‐2‐imine P,N ligand, the HIE reaction on a series of phenylacetic acid derivatives proceeds with high yields, high selectivity, and with deuterium incorporation up to 99 %. The method is fully adaptable to the specific requirements of tritium chemistry, and its effectiveness was
首次报道了在非常温和的反应条件下进行苯乙酸酯和酰胺的高选择性氢同位素交换(HIE)的催化方案。使用由二齿膦-咪唑啉-2-亚胺P,N配体支撑的均相铱催化剂,可以在一系列苯乙酸衍生物上进行HIE反应,产率高,选择性高,氘的掺入率高达99%。该方法完全适合to化学的特定要求,其有效性通过直接by标记杀真菌剂苯那西林和药物卡美洛芬来证明。利用DFT计算,NMR研究和X射线衍射分析,可以进一步了解HIE与催化剂1的反应机理。