P. Pazdera, M. Potáček
Jan 17, 1989
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Journal
ChemInform
Abstract
4-Substituted 2-nitrophenylguanidines were prepared by either an acid-catalyzed addition of 4-substituted 2-nitroanilines to cyanamide or a nucleophilic substitution of chlorine atom in l-chloro-2,4-dinitrobenzene and 4-chloro-3-nitrobenzonitrile with guanidine. The products were isolated and identified as nitrates. 4-Substituted 2-nitrophenylguanidines nitrates under basic catalysis were cyclized to 3-amino-7-substituted 1,2,4-benzotriazine-1-oxides.