Dichloropalladium complexes ligated by 4,5-bis(arylimino)pyrenylidenes: Synthesis, characterization, and catalytic behavior towards Heck-reaction

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• 作者：Kuifeng Song ; Shaoliang Kong ; Qingbin Liu ; Wen-Hua Sun ; Carl Redshaw
• 关键词：伪-Diimine ; Palladium complex ; Heck-reaction
• 刊名：Journal of Organometallic Chemistry
• 出版年：1 February, 2014
• 年：2014
• 卷：751
• 期：Complete
• 页码：453-457
• 全文大小：772 K

文摘

A series of 4,5-bis(arylimino)pyrenylidenylpalladium(II) chloride complexes (C1-C4) were synthesized and characterized by FT-IR and NMR spectroscopy, elemental analysis as well as by single crystal X-ray diffraction for the representative complexes C1 and C3, which revealed a square planar geometry at the palladium center. All palladium complexes exhibited high activity for the Heck cross-coupling reaction, which were effective when conducted in various solvents. Furthermore, the in-situ mixture of palladium dichloride and the ligand (L1) provided an effective catalytic system for the Heck-reaction.