Sulfuric Acid Adsorbed on Silica Gel. An Efficient Catalyst for the Tetrahydropyranylation of Alcohols

Flavio Chávez Syntex S.A. de C.V. Chemical Division Technical Services Department, Apartado Postal 517, Cuernavaca, Mor., 62000, México

Raul Godinez Syntex S.A. de C.V. Chemical Division Technical Services Department, Apartado Postal 517, Cuernavaca, Mor., 62000, México

Abstract

Sulfuric acid adsorbed on silica gel is an efficient catalyst for the tetra-hydropyranylation of alcohols and phenols. The reaction takes 1 to 10 minutes to be completed and nearly quantitative yields are obtained. The method is remarkable simple and inexpensive.

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Sulfuric Acid Adsorbed on Silica Gel. An Efficient Catalyst for the Tetrahydropyranylation of Alcohols

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Sulfuric Acid Adsorbed on Silica Gel. An Efficient Catalyst for the Tetrahydropyranylation of Alcohols

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