Tetrahedron letters

Highly chemoselective nitration of aromatic amines using the Ph 3 P/Br 2/AgNO 3 system

N Iranpoor, H Firouzabadi, N Nowrouzi, D Firouzabadi

Index: Iranpoor, Nasser; Firouzabadi, Habib; Nowrouzi, Najmeh; Firouzabadi, Dena Tetrahedron Letters, 2006 , vol. 47, # 38 p. 6879 - 6881

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Citation Number: 28

Abstract

There are many useful reagents for nitration such as concentrated nitric acid, 3 mixtures of nitric acid with sulfuric acid, 4 nitric acid in acetic anhydride, 5 nitrate salts in trifluoroacetic anhydride, 6 ozone and nitrogen dioxide, 7 N 2 O 5 and Fe(acac) 3 , 8 N-nitropyridinium- and quinolinium salts, 9 nitric acid and trifluoromethanesulfonic acid 10 or trifluoromethanesulfonic anhydride, 11 metal nitrates in sulfuric acid, 12 lanthanide(III) nosylates, 13 guanidinium ...