%0 Journal Article
%T Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions
%A Mohammad Ali Zolfigol
%A Elahe Madrakian
%A Ezat Ghaemi
%J Molecules
%D 2002
%I MDPI AG
%R 10.3390/71000734
%X Nitrophenols can be obtained in moderate to high yields via nitrosationoxidation of phenols with silica sulfuric acid, NaNO2 and wet SiO2 at room temperature. In situ generation of HNO2 and a radical cation mechanism via the nitrous acid catalyzed (NAC) pathway appear to be applicable to phenol nitration using these reagents.
%K Silica sulfuric acid
%K nitrosation-oxidation
%K nitration
%K nitrophenols
%U http://www.mdpi.com/1420-3049/7/10/734