Copper-free Sonogashira Coupling Reaction in Phosphonium Amino Acid Ionic Liquids
Phosphonium amino acid ionic liquids were found to be useful for the copper-free and amine-free Sonogashira coupling reaction. A hydrophobic and lipophobic ionic liquid permitted easy separation of the product from ionic liquid and catalyst, and the recovered ionic liquid containing Pd catalyst coul...
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| Veröffentlicht in: | Chemistry letters 2011-09, Vol.40 (9), p.1027-1029 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Phosphonium amino acid ionic liquids were found to be useful for the copper-free and amine-free Sonogashira coupling reaction. A hydrophobic and lipophobic ionic liquid permitted easy separation of the product from ionic liquid and catalyst, and the recovered ionic liquid containing Pd catalyst could be reused. |
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| ISSN: | 0366-7022 1348-0715 |
| DOI: | 10.1246/cl.2011.1027 |