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South African Journal of Chemistry
versão On-line ISSN 1996-840X
versão impressa 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