“Nafion”-functionalized mesoporous MCM-41 silica shows high activity and selectivity for carboxylic acid esterification and Friedel–Crafts acylation reactions

作者: M ALVARO , A CORMA , D DAS , V FORNES , H GARCIA

DOI: 10.1016/J.JCAT.2005.01.007

关键词:

摘要: Abstract Hybrid organic–inorganic MCM-41 silicas functionalized with perfluoroalkylsulfonic acid groups analogous to that of Nafion were prepared in a simple single step by condensation reaction between surface silanol the mesoporous and 1,2,2-trifluoro-2-hydroxy-1-trifluoromethyl-ethane sulfonic Beta-sultone. The catalysts showed very high activity for esterification long-chain fatty acids ethanol high-molecular-weight alcohols essentially complete selectivity at conversion ( > 95 % ). Acylation anisole was also possible, 4-methoxyacetophenone. more than commercial Nafion–silica composite catalysts.

参考文章(22)
W Van Rhijn, Dirk De Vos, Wim Bossaert, J Bullen, Bart Wouters, Pierre Grobet, Pierre Jacobs, None, Sulfonic acid bearing mesoporous materials as catalysts in furan and polyol derivatization Studies in Surface Science and Catalysis. ,vol. 117, pp. 183- 190 ,(1998) , 10.1016/S0167-2991(98)80992-0
George A. Olah, Friedel-Crafts and related reactions Interscience Publishers. ,(1963)
Karen Wilson, Adam F Lee, Duncan J Macquarrie, James H Clark, Structure and reactivity of sol-gel sulphonic acid silicas Applied Catalysis A-general. ,vol. 228, pp. 127- 133 ,(2002) , 10.1016/S0926-860X(01)00956-5
J. S. Beck, J. C. Vartuli, W. J. Roth, M. E. Leonowicz, C. T. Kresge, K. D. Schmitt, C. T. W. Chu, D. H. Olson, E. W. Sheppard, S. B. McCullen, J. B. Higgins, J. L. Schlenker, A new family of mesoporous molecular sieves prepared with liquid crystal templates Journal of the American Chemical Society. ,vol. 114, pp. 10834- 10843 ,(1992) , 10.1021/JA00053A020
Rickey D. Badley, Warren T. Ford, Silica-bound sulfonic acid catalysts Journal of Organic Chemistry. ,vol. 54, pp. 5437- 5443 ,(1989) , 10.1021/JO00284A014
J. Kaur, K. Griffin, B. Harrison, I.V. Kozhevnikov, Friedel–Crafts Acylation Catalysed by Heteropoly Acids Journal of Catalysis. ,vol. 208, pp. 448- 455 ,(2002) , 10.1006/JCAT.2002.3592
D. Margolese, J. A. Melero, S. C. Christiansen, B. F. Chmelka, G. D. Stucky, Direct Syntheses of Ordered SBA-15 Mesoporous Silica Containing Sulfonic Acid Groups Chemistry of Materials. ,vol. 12, pp. 2448- 2459 ,(2000) , 10.1021/CM0010304
Yudao Ma, Q.L. Wang, Wei Jiang, Bojun Zuo, FriedalȓCrafts acylation of anisole over zeolite catalysts Applied Catalysis A: General. ,vol. 165, pp. 199- 206 ,(1997) , 10.1016/S0926-860X(97)00201-9
Xingdong Yuan, Hyung Ik Lee, Jin Won Kim, Jae Eui Yie, Ji Man Kim, Periodic Mesoporous Organosilicas Functionalized with Sulfonic Acid Group. Synthesis and Alkylation of Phenol Chemistry Letters. ,vol. 32, pp. 650- 651 ,(2003) , 10.1246/CL.2003.650
Bich Chiche, Annie Finiels, Catherine Gauthier, Patrick Geneste, Jean Graille, Daniel Pioch, Friedel-Crafts acylation of toluene and p-xylene with carboxylic acids catalyzed by zeolites Journal of Organic Chemistry. ,vol. 51, pp. 2128- 2130 ,(1986) , 10.1021/JO00361A039