Catalysis of Organic..

Ardizzi et al. 87Experimental SectionThe catalytic tests were carried out in a batch-wise three-neck flask, with mechanicalstirring and internal thermocouple. The reaction mixture contained 0.05 mol phenol,0.05 mol benzoic acid and 1.5 g of catalyst, in the absence of solvent. The reactionwas carried out by first mixing phenol, benzoic acid and the catalyst in the powderform (this corresponds to the starting time for the reaction) and then by heating thesolid mixture up to 200°C. The result taken at 0.5 h reaction time corresponds to thebeginning of the isothermal period, after the heating step. The reaction mixture wasanalyzed by gas chromatography (Carlo Erba GC 6000 Vega Series 2 instrument),equipped with a HP-5column. The zeolite used for catalytic tests is a commercial H-β sample (Si/Al ratio 75), provided by Süd-Chemie.AcknowledgementsWe thank Süd-Chemie for providing us the zeolite sample.References1. H.W. Kouwenhoven and H. van Bekkum, Handbook of HeterogeneousCatalysis, G. Ertl, H. Knözinger, J. Weitkamp, Eds., VCH, Weinheim, Vol. 5, p.2358, 1997.2. A. Corma, Chem. Rev., 95, 559 (1995).3. B. Chiche, A. Finiels, C. Gauthier, P. Geneste, J. Graille and D. Pioch, J. Org.Chem., 51, 2128 (1986).4. A. Corma, M.J. Climent, H. Garcia and J. Primo, Appl. Catal., 49, 109 (1989).5. A.J. Hoefnagel and H. van Bekkum, Appl.Catal. A, 97, 87 (1993).6. I. Neves, F. Jayat, P. Magnoux, G. Perot, F.R. Ribeiro, M. Gubelmann and M.Guisnet, J. Molec. Catal., 93, 164 (1994).7. C. Castro, A. Corma and J. Primo, J. Molec. Catal. A, 177, 273 (2002).8. P. Marion, R. Jacquot, S. Ratton and M. Guisnet, Zeolites for CleanerTechnologies, M. Guisnet, J.-P. Gilson, Eds., ICP, 2003, p. 281.9. F. Bigi, S. Carloni, C. Flego, R. Maggi, A. Mazzacani, M. Rastelli and G.Sartori, J. Molec. Catal. A, 178, 139 (2002).10. M. Bolognini, F. Cavani, M. Cimini, L. Dal Pozzo, L. Maselli, D. Venerito, F.Pizzoli and G. Veronesi, Comptes Rendus Chimie, 7, 143 (2004).11. A. Vogt, H.W. Kouwenhoven and R. Prins, Appl. Catal A, 123, 37 (1995).12. Y. Pouilloux, J.P. Bodibo, I. Neves, M. Gubelmann, G. Perot and M. Guisnet,Heterogeneous Catalysis and Fine Chemicals II, Elsevier, Amsterdam, 1991, p.513.