Ligand‐Free Copper(0)‐Catalyzed C−S Ullmann‐Type Cross‐Coupling Reaction: S‐Arylation of 5,4‐Disubstituted 2,4‐Dihydro‐3<i>H</i>‐1,2,4‐triazole‐3‐thiones
作者:Artyom V. Petrosyan、Armen G. Ayvazyan、Tariel V. Ghochikyan、Armen S. Galstyan
DOI:10.1002/ejoc.202400199
日期:——
The arylation of 5,4-disubstituted 2,4-dihydro-3H-1,2,4-triazole-3-thiones was investigated under Ullmann-type reaction conditions involving ligand-free Cu(0) catalysis, the results of which showed that the reaction proceeds chemoselectively with the formation of S-arylation products. In some cases, when an electron-withdrawing group is present in the arylating agent, the reaction can proceed without
在无配体 Cu(0) 催化的 Ullmann 型反应条件下研究了 5,4-二取代 2,4-二氢-3H-1,2,4-三唑-3-硫酮的芳基化反应,结果表明该反应以化学选择性进行并形成S-芳基化产物。在一些情况下,当芳基化剂中存在吸电子基团时,反应可以在没有催化剂的情况下进行。