J. Suwiński, K. Świerczek, T. Głowiak
Jun 11, 1993
Citations
0
Influential Citations
19
Citations
Journal
Tetrahedron
Abstract
Abstract 1-aryl-4-nitroimidazoles under action of 4-amino-1,2,4-triazole in the presence of MeONa in DMSO undergo a vicarious nucleophilic substitution of hydrogen to give 5-amino-1-aryl-4-nitroimidazoles. If reacted with hydroxylamine in the presence of KOH or MeONa in methanol (but not in DMSO) 1-aryl-4-nitroimidazoles undergo a transformation to 4-acylamino-2-aryl-1-oxy-2H-1,2,3-triazoles but do not yield amination products.