Journal
JOURNAL OF CATALYSIS
Volume 192, Issue 2, Pages 441-447Publisher
ACADEMIC PRESS INC
DOI: 10.1006/jcat.2000.2861
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Protection of aldehydes by formation of the corresponding dimethyl acetals and protection of alcohols and phenols by formation of the corresponding tetrahydropyranyl ethers have been carried out successfully using ITQ-2 zeolite as acid catalyst. Its catalytic activity for these reactions is compared with those obtained with MCM-22, Beta zeolites, and the mesoporous aluminosilicate MCM-41, all of them with similar Si/Al ratios. The results obtained indicate that when the reactions involve bulky reactants, ITQ-2 shows, in all cases, the highest activity as a consequence of the combination of its delaminated structure and the presence of strong acid sites. (C) 2000 Academic Press.
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