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- W1996337568 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 a condensation reaction between surface silanol groups of the mesoporous silicas and 1,2,2-trifluoro-2-hydroxy-1-trifluoromethyl-ethane sulfonic acid Beta-sultone. The catalysts showed very high activity for the esterification of long-chain fatty acids with ethanol and high-molecular-weight alcohols with essentially complete selectivity at high conversion (>95%). Acylation of anisole was also possible, with high selectivity for 4-methoxyacetophenone. The catalysts showed more activity conversion than commercial Nafion–silica composite catalysts." @default.
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- W1996337568 date "2005-04-01" @default.
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- W1996337568 title "??-functionalized mesoporous MCM-41 silica shows high activity and selectivity for carboxylic acid esterification and Friedel?Crafts acylation reactions" @default.
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- W1996337568 doi "https://doi.org/10.1016/j.jcat.2005.01.007" @default.
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