水溶性氮杂环卡宾钯金属配合物催化的Sonogashira反应

催化学报 , 2015, (8): 1387-1391. doi: 10.1016/S1872-2067(15)60843-9

水溶性氮杂环卡宾钯金属配合物催化的Sonogashira反应

1.中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室，甘肃兰州730000; 中国科学院大学，北京100049

2.中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,甘肃兰州,730000

3.中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,甘肃兰州,730000

基金项目: 国家自然科学基金(21373248和21133011).@@@@This work was supported by the National Natural Science Foundation of China (21373248 and 21133011)

关键词：氮杂环卡宾钯金属配合物 , Sonogashira反应 , 水 , 碘代芳烃 , 端基炔烃

Easily prepared water soluble Pd-NHC complex as an efficient, phosphine-free palladium catalyst for the Sonogashira reaction

Keywords： Pd-NHC complex , Sonogashira reaction , Water , Aryl iodide , Terminal alkyne

成功合成了一种磺酸钠基团官能团化的水溶性氮杂环卡宾钯金属配合物。在无膦、以水作溶剂的反应条件下，这种水溶性卡宾钯金属配合物能高效催化碘代芳烃和端基炔烃的Sonogashira偶联反应，反应结束后，可以通过萃取的方式把催化剂从反应混合物中分离出来，该催化剂可以重复循环使用四次。

A water soluble Pd-NHC complex was prepared and its catalytic activity in the Sonogashira reaction of terminal alkynes and aryl iodides using water as solvent under phosphine-free conditions was shown. This gives an efficient approach to diarylalkynes. The water soluble Pd-NHC complex can be easily recovered by extraction of the reaction solution and it was reused four times with only a slight loss of catalytic activity.

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