Application of recoverable nanosized palladium(0) catalyst in Sonogashira reaction |
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Authors: | Pinhua Li Hongji Li |
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Institution: | a Department of Chemistry, Huaibei Coal Teachers College, Huaibei, Anhui 235000, People's Republic of China b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China |
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Abstract: | In the absence of ligand, copper and amine, a recoverable nanoparticle palladium(0) catalyzed Sonogashira reaction of aryl iodides and bromides with terminal alkynes was developed. The protocol involved the use of an environmental-friendly reaction system with ethanol as the solvent, potassium carbonate as a base, and poly(vinylpyrrolidone) (PVP) supported nanosized palladium metal colloids as the catalyst. The palladium metal was recovered and recycled by a simple decantation of the reaction solution and used for eight consecutive trials without significant loss of its reactivity. |
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Keywords: | Nanoparticle palladium metal Sonogashira reaction Ligand free Copper free Amine free |
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