Formic Acid Reduction. XIX. Formic Acid Reduction of 4-Dialkylaminosubstituted Nitro-, Nitroso-, Azoxy-and Azobenzenes

Abstract

4-Dimethylamino-substituted nitro-and nitrosobenzene and 4, 4'-bis(dimethylamino)-substituted azoxy-and azobenzene have been shown to react with the distillable liquid formate, TMAF, composed of formic acid and trimethylamine to give a number of the products, N-methyl and N-formyl derivatives of p-phenylenediamine. Control experiments with several substrates, mostly nitrobenzene derivatives, and with the other formates and formic acid have been made, revealing source of the increasing N-methyl of the products and some features of the reaction.