New Highly Active and Selective Heterogeneous Catalytic System for the Synthesis of Unsymmetrical Organic Carbonates: A Green Protocol
A green, efficient, and selective synthesis of unsymmetrical organic carbonates is realised in the liquid phase by direct condensation of an alcohol and diethyl carbonate, in an eco‐compatible route, in the presence of a recyclable heterogeneous solid‐base CsF/α‐Al2O3 catalyst. The catalyst displaye...
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| Veröffentlicht in: | European Journal of Organic Chemistry 2005-05, Vol.2005 (10), p.1972-1976 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | A green, efficient, and selective synthesis of unsymmetrical organic carbonates is realised in the liquid phase by direct condensation of an alcohol and diethyl carbonate, in an eco‐compatible route, in the presence of a recyclable heterogeneous solid‐base CsF/α‐Al2O3 catalyst. The catalyst displayed unprecedented activity after activation at 393 K for 4 h and produced quantitative yields with a greater rate compared with solid bases reported so far. The present process is a potential alternative to replace soluble bases in commercial synthesis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005) |
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| ISSN: | 1434-193X 1099-0690 |
| DOI: | 10.1002/ejoc.200400888 |