Cross-coupling reactions catalyzed by an N-heterocyclic carbene–Pd(II) complex under aerobic and CuI-free conditions
Cross-coupling reactions catalyzed by an N-heterocyclic carbene–Pd(II) complex under aerobic and CuI-free conditions
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DOI：
10.1039/c4ra02480j
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发表时间：
2014-07
期刊：
影响因子：
3.9
通讯作者：
Hongfei Lu;Lin Wang;Feifei Yang;Runze Wu;Wei Shen
中科院分区：
文献类型：
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作者：
Hongfei Lu;Lin Wang;Feifei Yang;Runze Wu;Wei Shen
钯配合物（催化剂3）已成功地用作芳基溴与各种末端乙炔和烯烃的Sonogashira和Heck反应的高效和可回收催化剂。在有氧和无CuI条件下，催化反应以优异的产率进行，催化剂负载量低（1.0摩尔%）。一个合理的机制也已提出的反应。
A Pd-complex, (Cat. 3), has been successfully employed as a highly efficient and recyclable catalyst for the Sonogashira and Heck reactions of aryl bromides with various terminal acetylenes and olefins. The catalytic reactions proceed with excellent yields with a low catalyst loading (1.0 mol%) under aerobic and CuI-free conditions. A plausible mechanism has also been proposed for the reaction.