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| Melamine-(H2SO4)3 and PVP-(H2SO4)n as solid acids:Synthesis and application in the first mono- and di-nitration of bisphenol A and other phenols |
| Gholamabbas Chehardolia, Mohammad Ali Zolfigolb, Seyedeh Bahareh Azimic, Ebadollah Alizadeh d |
a School of Pharmacy, Hamedan University of Medical Sciences, Hamedan 65178, Iran;
b Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran;
c Islamic Azad University, Shahre Rey Branch, Shahre Rey, Iran;
d Payame Noor University, Hamedan, Iran |
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Abstract Melamine and poly vinylpyrrolidone (PVP) reacted with neat sulfuric acid readily to form two new organic solid acids namely melamine-(H2SO4)3 and PVP-(H2SO4)n· These solid acids were used for the first nitration of bisphenol A as well as other phenols in the presence of NH4NO3. Mono- and di-nitro bisphenol A have been characterized with IR and 1H NMR techniques.
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Received: 29 October 2010
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Corresponding Authors:
Gholamabbas Chehardoli, E-mail addresses:chehardoli@umsha.ac.ir;cheh1002@gmail.com
E-mail: chehardoli@umsha.ac.ir;cheh1002@gmail.com
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