Hydrazinoaminocarbene–palladium complexes as easily accessible and convenient catalysts for copper-free Sonogashira reactions

EA Savicheva, DV Kurandina, VA Nikiforov…

文献索引：Savicheva, Elizaveta A.; Kurandina, Daria V.; Nikiforov, Vladimir A.; Boyarskiy, Vadim P. Tetrahedron Letters, 2014 , vol. 55, # 13 p. 2101 - 2103

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被引用次数: 18

摘要

Abstract Two easily accessible hydrazinoaminocarbene complexes of Pd (II) are shown to be efficient catalysts for copper-free Sonogashira cross-couplings of a variety of aryl iodides with aryl-and alkylalkynes under mild conditions, in ethanol as the solvent and using potassium carbonate as the base. The reactions were carried out with 0.05 mol% of the catalysts which demonstrated exceptional stability in the solid state and in ethanol. ...