Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI: | http://purl.tuc.gr/dl/dias/BB63CC42-F5A9-42B8-AD4F-B88055FAD397 | ||
| Έτος | 2014 | ||
| Τύπος | Σύντομη Δημοσίευση σε Συνέδριο | ||
| Άδεια Χρήσης |
|
||
| Βιβλιογραφική Αναφορά | N. Martin, P. Panagiotopoulou, D.G. Vlachos, "Liquid phase catalytic transfer hydrogenation of furfural over homogeneous Lewis acid-Ru/C catalysts," in Catalysis Club of Philadelphia annual poster contest, 2014, pp. 2046–2054. doi:10.1002/cssc.201500212 https://doi.org/10.1002/cssc.201500212 | ||
| Εμφανίζεται στις Συλλογές |
The catalytic performance of homogeneous Lewis acid catalysts and their interaction with Ru/C catalyst are studied in the catalytic transfer hydrogenation of furfural by using 2-propanol as a solvent and hydrogen donor. We find that Lewis acid catalysts hydrogenate the furfural to furfuryl alcohol, which is then etherified with 2-propanol. The catalytic activity is correlated with an empirical scale of Lewis acid strength and exhibits a volcano behavior. Lanthanides are the most active, with DyCl3 giving complete furfural conversion and a 97 % yield of furfuryl alcohol at 180 °C after 3 h. The combination of Lewis acid and Ru/C catalysts results in synergy for the stronger Lewis acid catalysts, with a significant increase in the furfural conversion and methyl furan yield. Optimum results are obtained by using Ru/C combined with VCl3, AlCl3, SnCl4, YbCl3, and RuCl3. Our results indicate that the combination of Lewis acid/metal catalysts is a general strategy for performing tandem reactions in the upgrade of furans.
Copyright © DIAS 2013
