Feb 14, 2024 · Moreover, nitrobenzene is catalytically reduced to the least toxic aniline in the presence of sodium borohydride as a mild reducing agent in just 10 min of contact time. The magnetically separable catalyst offers good recovery, higher stability, selectivity, reproducibility, and real-time monitoring of the contaminants.

Rate-limiting steps in electrochemical nitrobenzene reduction on late-transition-metal surfaces are determined using density functional theory calculations. A rationale for electrocatalyst optimization is presented and used to suggest optimal nitroaromatic reduction electrocatalysts.

α,β-Unsaturated nitro compounds can be reduced to saturated amines by: Lithium aluminium hydride [27] (Note: Hydroxylamines and oximes are typical impurities.) Aliphatic nitro compounds can be reduced to aliphatic hydroxylamines using diborane. [30] The reaction can also be carried out with zinc dust and ammonium chloride: [31][32][33]

Aug 24, 1998 · A great variety of monosubstituted nitrobenzene derivatives has been reduced in good yield to the corresponding anilines with hydrazine hydrate in the presence of an iron oxide hydroxide catalyst prepared by precipitation from an aqueous iron(III) solution with …

Oct 27, 2023 · Several alternative methods for reducing nitro groups to amines are known. These include zinc or tin in dilute mineral acid, and sodium sulfide in ammonium hydroxide solution. The procedures described above are sufficient for most cases.

The catalytic reduction reaction involves the transfer of nitroaromatics and hydrogen reduction, highlighting the importance of the hydrogen source and electron transfer in exploring the mechanism. Additionally, further research focuses on the …

Dec 16, 2022 · Here, we describe the selective reduction of nitrobenzene to aniline under mild conditions, using water as the ultimate source of the required protons and electrons. We describe the electrochemical cell assembly, and detail steps for electrochemical reduction followed by organic extraction and analysis of the extracts using NMR.

I would like to know if it is possible to reduce nitrobenzene by the use of aluminium metal in an acidic medium, such as hydrochloric acid, to yield the aromatic amine, aniline. Typical methods for the reaction call for the use of iron filings with hydrochloric acid, the bechamp reduction , or tin in hydrochloric acid.

Catalytic hydrogenation is commonly used in the reduction of aromatic and aliphatic nitro compounds to amines, in the conversion of acids, esters and ketones to...

Reduction of nitrobenzene with hydrazine hydrate, in the presence of a metal, such as copper, iron, zinc, or aluminum, was carried out. It was found that zinc and aluminum do not show almost any catalytic activity while nitrobenzene was reduced in good yield to aniline in the presence of copper or iron powder.