Tetrahedron Letters p. 7589 - 7591 (2002)
Update date:2022-09-26
Topics:
Romanelli, Gustavo P.
Baronetti, Graciela
Thomas, Horacio J.
Autino, Juan C.
A simple and efficient procedure to form 2-tetrahydropyranyl acetals of phenols and alcohols is reported. Wells-Dawson heteropolyacid catalyst is used both in bulk form or supported on silica, reaction conditions include room temperature and toluene as solvent. Fast deprotection of THP-acetals can be attained by mere change of the solvent using THF-1% MeOH. In both reactions the supported catalyst is easily recoverable and reusable, and the yields are good to excellent.
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