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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.62  Durban  2009

 

SHORT COMMUNICATION

 

Silica-supported Preyssler nanoparticles as new catalysts in the synthesis of 4(3H)-quinazolinones

 

 

Majid M. HeraviI; Samaheh SadjadiI; Sodeh SadjadiI; Hossein A. OskooieI; R. Hekmat ShoarI; Fatemeh F. BamoharramII

IDepartment of Chemistry, School of Sciences, Azzahra University, Vanak, Tehran, Iran
IIDepartment of Chemistry, School of Sciences, Islamic Azad University, Mashad Branch, Mashad, Iran

 

 


ABSTRACT

A new and efficient method for the preparation of 4(3H)-quinazolinones from the condensation of anthranilic acid, orthoester and substituted anilines, in the presence of catalytic amounts of silica-supported Preyssler nanoparticles is reported. The catalyst performs very well in comparison with other catalysts reported before. An important advantage of this catalyst is the ease of separating it from the reaction mixture, as well as the fact that it could be recycled a number of times.

keywords: 4(3H)-Quinazolinones, recyclable catalyst, silica-supported Preyssler nanoparticles, heteropolyacids


 

 

Full text available only in PDF format.

 

Acknowledgement

M.M.H. is thankful for partial financial assistance from Azzahra University Research Council.

 

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Received 10 August 2008
Revised 23 September 2008
Accepted 16 October 2008

 

 

* To whom correspondence should be addressed. E-mail: mmh1331@yahoo.com

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