Supported sulfonic acids: reusable catalysts for more sustainable oxidative coupling of xanthene-like compounds with nucleophiles

Supported sulfonic acids: reusable catalysts for more sustainable oxidative coupling of xanthene-like compounds with nucleophiles

The oxidative coupling of xanthene and thioxanthene with methylene active compounds can be achieved in good yields (55-92%) and selectivities (83-99%) by using the commercial catalyst Amberlyst-15, an inexpensive, safe to handle and easy to recycle sulfonic resin. The method is completely metal-free...

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Veröffentlicht in:Catalysis science & technology 2012-01, Vol.2 (12), p.2449-2452
Hauptverfasser: Piscopo, Calogero G., Bühler, Sofie, Sartori, Giovanni, Maggi, Raimondo
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
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Zusammenfassung:The oxidative coupling of xanthene and thioxanthene with methylene active compounds can be achieved in good yields (55-92%) and selectivities (83-99%) by using the commercial catalyst Amberlyst-15, an inexpensive, safe to handle and easy to recycle sulfonic resin. The method is completely metal-free and shows a very high atom economy (99.2%).
ISSN:2044-4753
2044-4761
DOI:10.1039/c2cy20428b