作者:Ying Chen、Sailuo Li、Lanting Xu、Dawei Ma
DOI:10.1021/acs.joc.2c02882
日期:2023.3.3
6-Dimethylphenyl)-N2-(pyridin-2-ylmethyl)oxalamide (DMPPO) was revealed to be a more effective ligand for copper-catalyzed coupling reaction of (hetero)aryl halides with 1-alkynes than previously reported ones. Only 3 mol % CuCl and DMPPO are required to make the coupling complete at 100 °C (for bromides) and 80 °C (for iodides). Both (hetero)aryl and alkyl substituted 1-alkynes worked well under these conditions
N 1 -(2,6-二甲基苯基)- N 2 -(
吡啶-2-基甲基)草酰胺 (
DMPPO) 被发现是
铜催化的(杂)芳基卤化物与 1-
炔烃偶联反应的更有效
配体以前报道过的。仅需 3 mol% CuCl 和
DMPPO 即可在 100 °C(
溴化物)和 80 °C(
碘化物)下完成偶联。(杂)芳基和烷基取代的 1-
炔烃在这些条件下都表现良好,导致内部
炔烃的形成具有很大的多样性。