An Efficient Method for the Nitration of Phenols with NaNO2 in the Presence of 3-Methyl-1-Sulfonic Acid Imidazolium Chloride

نویسندگان

1 Department of Chemical Engineering,Amirkabir University of Technology

2 Department of Chemical Engineering,Amirkabir University of Technology

3 Department of Chemical Engineering,Amirkabir University of Technology

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چکیده

Nitrophenols can be obtained in high yields via nitrosation-oxidation of phenols by 3- methyl-1-sulfonic acid imidazolium chloride f[Msim]Clg as a new Brnsted acidic ionic liquid and NaNO2 at room temperature. In situ generation of HNO2 and a radical-cation mechanism via the nitrous acid catalyzed pathway appear to be applicable to phenol nitration using this reagent system.