Reusable, Polymer‐Supported, Palladium‐Catalyzed, Atom‐Efficient Coupling Reaction of Aryl Halides with Sodium Tetraphenylborate in Water by Focused Microwave Irradiation.
Reusable, Polymer‐Supported, Palladium‐Catalyzed, Atom‐Efficient Coupling Reaction of Aryl Halides with Sodium Tetraphenylborate in Water by Focused Microwave Irradiation.
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DOI：
10.1002/chin.200822101
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发表时间：
2008-05
期刊：
影响因子：
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通讯作者：
L. Bai;Jinxia Wang
中科院分区：
文献类型：
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作者：
L. Bai;Jinxia Wang
在聚合物负载的钯催化剂和碳酸钾存在下，在聚焦微波辐射下，在120 °C下，在水中进行四苯硼钠与芳基溴的快速有效的交叉偶联反应。四苯硼钠的四个苯基均参与了反应，并以优异的产率生成了多官能联芳基化合物。该高分子催化剂可以很容易地从反应混合物中分离出来，重复使用10次以上，活性没有任何下降。
A rapid and efficient cross‐coupling reaction of sodium tetraphenylborate with aryl bromides was carried out in water at 120 °C in the presence of a polymer‐supported palladium catalyst and potassium carbonate under focused microwave irradiation. All four phenyl groups of sodium tetraphenylborate participated in the reaction and produced polyfunctional biaryls in excellent yields. The polymeric catalyst can be easily separated from the reaction mixture and reused more than 10 times without showing any decrease in activity.