Spanish Sepiolite Clay as a New Heterogeneous Catalyst for the Tetrahydropyranylation of Alcohols and Phenols
- 1 May 1994
- journal article
- research article
- Published by Informa UK Limited in Synthetic Communications
- Vol. 24 (10), 1345-1350
- https://doi.org/10.1080/00397919408011737
Abstract
OH-protection of alcohols and phenols by heating the hydroxylated compound with 3,4-dihydro-2H-pyrane in the presence of a readily available and inexpensive spanish sepiolite heterogeneous acid clay catalyst is described. Isolated yields, not optimized, were in the range 29–99%.Keywords
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