4.4 Article

Easy copper-, ligand- and amine-free sonogashira coupling reaction catalyzed by palladium on carbon at low catalyst loading and by exposure to air

期刊

SYNLETT
卷 -, 期 4, 页码 619-622

出版社

GEORG THIEME VERLAG KG
DOI: 10.1055/s-2005-863720

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sonogashira coupling; palladium; catalysis; heterogeneous

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An easy copper-, ligand and amine-free Sonogashira coupling reaction catalyzed by commercially available palladium on carbon with air at low catalyst loading (0.2 mol% Pd) has been developed. Aryl iodides coupled with aromatic alkynes gave good to excellent yields and with aliphatic alkyne gave moderate to good yields. The reaction system is easy to handle.

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