Palladium nanoparticles as reusable catalyst for the synthesis of <i>N</i>-aryl sulfonamides under mild reaction conditions
作者:Mehdi Khalaj、Majid Ghazanfarpour-Darjani、Mohamad Reza Talei Bavil Olyai、Sakineh Faraji Shamami
DOI:10.1080/17415993.2015.1122010
日期:2016.3.3
An efficient palladium nanoparticles-catalyzed N-arylation of sulfonamides and sulfonyl azides is described. This procedure serves as an active protocol for intermolecular C–N bond formation using Pd(OAc)2 in PEG-400 under air. Aryl bromides and triflates react at 35°C, while aryl chlorides require heating to 50°C and give the desired products only in low yields. This reaction proceeds smoothly in
描述了一种有效的钯纳米粒子催化的磺酰胺和磺酰叠氮化物的 N-芳基化。该过程用作在空气中使用 PEG-400 中的 Pd(OAc)2 形成分子间 C-N 键的主动协议。芳基溴化物和三氟甲磺酸酯在 35°C 下反应,而芳基氯化物需要加热到 50°C,并且只能以低产率得到所需产物。该反应使用低催化剂负载以可接受的产率平稳进行。图形概要