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Org Lett. 2008 Sep 18;10(18):3933-6. doi: 10.1021/ol801478y. Epub 2008 Aug 23.

Magnetically separable Pd catalyst for carbonylative Sonogashira coupling reactions for the synthesis of alpha,beta-alkynyl ketones.

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  • 1State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China.

Abstract

A magnetically separable palladium catalyst was simply synthesized through a wet impregnation incorporating palladium nanoparticles and superparamagnetic Fe3O4 nanoparticles in KBH4 solution, which is a highly efficient catalyst for the carbonylative Sonogashira coupling reaction of aryl iodides with terminal alkynes under phosphine-free conditions. This catalyst is completely magnetically recoverable due to the super paramagnetic behavior of Fe3O4 and can be reused with sustained selectivity and activity.

PMID:
18722455
[PubMed]
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