Ether-Imidazolium Carbenes for Suzuki鈥揗iyaura Cross-Coupling of Heteroaryl Chlorides with Aryl/Heteroarylboron Reagents
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- 作者：Masami Kuriyama ; Seira Matsuo ; Mina Shinozawa ; Osamu Onomura
- 刊名：Organic Letters
- 出版年：2013
- 出版时间：June 7, 2013
- 年：2013
- 卷：15
- 期：11
- 页码：2716-2719
- 全文大小：326K
- 年卷期：v.15,no.11(June 7, 2013)
- ISSN：1523-7052
文摘
Easily accessible and handled ether-imidazolium chlorides were developed as ligand precursors. The coupling reactions of heteroaryl chlorides with aryl/heteroarylboronic acids and esters were catalyzed by the palladium/ether-imidazolium chloride system with high substrate tolerance to give various heterobiaryls in good to excellent yields.