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Molecules 2002, 7(10), 734-742; doi:10.3390/71000734
Article

Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions

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Received: 2 October 2002; in revised form: 14 October 2002 / Accepted: 14 October 2002 / Published: 31 October 2002
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Abstract: 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.
Keywords: Silica sulfuric acid; nitrosation-oxidation; nitration; nitrophenols Silica sulfuric acid; nitrosation-oxidation; nitration; nitrophenols
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Zolfigol, M.A.; Madrakian, E.; Ghaemi, E. Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions. Molecules 2002, 7, 734-742.

AMA Style

Zolfigol MA, Madrakian E, Ghaemi E. Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions. Molecules. 2002; 7(10):734-742.

Chicago/Turabian Style

Zolfigol, Mohammad A.; Madrakian, Elahe; Ghaemi, Ezat. 2002. "Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions." Molecules 7, no. 10: 734-742.


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