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South African Journal of Chemistry

versión On-line ISSN 1996-840X
versión impresa ISSN 0379-4350

S.Afr.j.chem. (Online) vol.65  Durban  2012

 

RESEARCH ARTICLE

 

A highly efficient solvent-free acetalization of aldehydes to 1,1-diacetates catalyzed by SiO2-Pr-SO3H

 

 

Ghodsi Mohammadi ZiaraniI, *; Alireza BadieiII; Fatemeh ShahjafariI; Taiiebeh PourjafarI

IDepartment of Chemistry, Alzahra University, Vanak Square, P.O. Box 1993891176, Tehran, Iran
IISchool of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran

 

 


ABSTRACT

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-SO3H


 

 

Full text available only in PDF format.

 

Acknowledgements

We gratefully acknowledge the financial support from the Research Council of Alzahra University and the University of Tehran.

 

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Received 11 August 2011
Revised 12 September 2011
Accepted 2 December 2011

 

 

* To whom correspondence should be addressed. E-mail: gmziarani@hotmail.com

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