Journal
CATALYSIS COMMUNICATIONS
Volume 5, Issue 8, Pages 463-468Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2004.05.013
Keywords
ZrO2-pillared clay; THP; l,n-symmetrical diols; MW
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ZrO2-pillared clay (Zr-PILC) a mild recyclable solid Lewis acid catalyst prepared by a short and simple novel method by us, has been used for the selective, monotetrahydropyranylation under solvent-free condition both by heating and microwave irradiation of 1,n-symmetrical diols and simple alcohols with good selectivity and conversion in high yields for the first time. HO-(CH2)(n)-OH + DHP -->(Zr-PILC)(MW) HO-(CH2)(n)-OTHP A comparative study with previously reported methods and other acid catalysts has been done to demonstrate the efficacy of the present developed methodology. (C) 2004 Elsevier B.V. All rights reserved.
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