Reduction of aromatic nitro compounds with hydrazine hydrate in the presence of an iron oxide/hydroxide catalyst. III. The selective reduction of nitro groups in aromatic azo compounds

Iron oxide nanoparticles supported on activated carbon fibers catalyze chemoselective reduction of nitroarenes under mild conditions

“…No intermediates were detected by GC analysis. While such a high selectivity has been already reported for unsupported Fe oxide catalysts, the activity of our Fe 2 O 3 /ACF catalysts is at least one order of magnitude higher as compared to the previously reported results [7,8,10,25,27,30,31].…”

Carbon–Iron Microfibrous Material Produced by Thermal Treatment of Self-rolled Poly(4-vinyl pyridine) Films Loaded by Fe2O3 Particles

“…Fe2O3 particles were used here as the precursor of the catalytic component of the filters, because the iron oxides are very popular as catalysts due to their low cost, easy handling and nontoxicity. Iron minerals are used for acceleration of a broad range of reactions, in particular the decomposition of industrial dyes [26,27] , and conversion of harmful aromatic compounds [28,29] . Iron-promoted catalytic decomposition of hydrogen peroxide is explored in water treatment technologies for degrading of organic pollutants [30] .…”

Iron Catalysis in Synthetic Chemistry

“…The same group reported the reduction of a series of monosubstituted 3-and 4-nitrophenylazobenzenes with hydrazine hydrate in the presence of the iron oxide-hydroxide catalyst (Scheme 194) (280). Their study revealed that selectivity for the nitro group reduction versus that of the azo bridge in substituted NH 2 Fe/ HCl NO 2 Scheme 193. nitrophenylazobenzenes is higher than for the para nitro group than for the azo bridge, than for the corresponding meta counterparts.…”