28 research outputs found

    A Highly Efficient Solvent-Free Acetalization of Aldehydes to 1,1-Diacetates Catalyzed by SiO2-Pr-SO3H

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    1,1-Diacetates are prepared in excellent yields from aldehydes and acetic anhydride under solvent-free conditions at room temperature in short reaction times using catalytic amount of sulfonic acid functionalized silica (SiO2-Pr-SO3H) which could be easily handled and removed from the mixture of reaction.Keywords: 1,1-Diacetates, sulfonic acid functionalized silica, acetalization, solvent-free reaction, SiO2-Pr-SO3

    Recent investigations in the synthesis of spirooxindole derivatives by Iranian researchers

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