Issue 6, 2002
From the journal:

Green Chemistry

Silica modified sulfuric acid/NaNO2 as a novel heterogeneous system for the oxidation of 1,4-dihydropyridines under mild conditions

Mohammad Ali Zolfigol,*a   Farhad Shirini,b   Arash Ghorbani Choghamarania  and  Iraj Mohammadpoor-Baltorkc  

* Corresponding authors

a Chemistry Department, College of Science, Bu-Ali Sina University, Post Box No. 4135, Hamadan, I. R. Iran
E-mail: Zolfi@basu.ac.ir
Fax: (+98) 81 8272404

b Chemistry Department, College of Science, Gilan University, Rasht, Iran

c Chemistry Department, College of Science, Isfahan University, Isfahan, I. R. Iran

Abstract

A combination of silica modified sulfuric acid and sodium nitrite in the presence of wet SiO2 were used as an effective oxidizing agent for the oxidation of dihydropyridines to their corresponding pyridine derivatives under mild and heterogeneous conditions in moderate to excellent yields.

Graphical abstract: Silica modified sulfuric acid/NaNO2 as a novel heterogeneous system for the oxidation of 1,4-dihydropyridines under mild conditions

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Article information

DOI
https://doi.org/10.1039/B208328K
Article type
Paper
Submitted
27 Aug 2002
First published
08 Oct 2002

Green Chem., 2002,4, 562-564

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Silica modified sulfuric acid/NaNO2 as a novel heterogeneous system for the oxidation of 1,4-dihydropyridines under mild conditions

M. A. Zolfigol, F. Shirini, A. G. Choghamarani and I. Mohammadpoor-Baltork, Green Chem., 2002, 4, 562 DOI: 10.1039/B208328K

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