Melamine trisulfonic acid catalyzed regioselective nitration of aromatic compounds under solvent-free conditions

Subject Areas : Journal of the Iranian Chemical Research

Jalal  Albadi ¹ (Young Research Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran)
Farhad  Shirinib ² (Department of Chemistry, College of Science, University of Guilan, Rasht, Iran)
Masoumeh  Abedini ³ (Department of Chemistry, College of Science, University of Guilan, Rasht, Iran)
Tayebeh  Seiadatnasab ⁴ (Department of chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran)

Received: 2012-04-17 Accepted : 2012-07-12 Published : 2012-09-20

Keywords: Nitration, Melamine trisulfonic acid, Aromatic compounds,

Abstract :

A simple, mild and efficient method for the regioselective nitration of various aromatic compounds usingpoly(4-vinylpyridinium nitrate) (P4VPyN) in the presence of melamine trisulfonic acid (MTSA), is reported.This method provides several advantages such as good selectiveity between ortho and para positions ofaromatic compounds, clean procedure, simple work-up, short reaction times, solvent-free conditions andhigh yields of products. This methodology is useful for nitration of activated and deactivated aromatic rings.

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