Article ID Journal Published Year Pages File Type
50416 Catalysis Communications 2014 5 Pages PDF
Abstract

•One pot NO2 reduction, ring hydrogenation, and N-alkylation using Ru/C-NaNO2.•Nitrobenzene undergoes –NO2 reduction, ring hydrogenation, and N-alkylation.•Secondary alcohols having less acidity showed good selectivity toward CHA.•Ru/C catalyst is highly stable without any metal leaching up to 5 recycles.

A report to produce alicyclic amines and subsequent N-alkylation with alcohols using Ru/C-NaNO2 catalyzed facile transformation of nitrobenzene was investigated. Effects of solvent, temperature, pressure, reaction time, and molar-ratio of substrate/catalyst on product composition were also studied. These mechanistic studies explain that nitrobenzene undergoes hydrogenation reaction in the following order; –NO2 reduction to –NH2, aromatic ring-hydrogenation to alicyclic, and from the reaction of alcohol to give N-alkylated amines. This investigation shed lights on possible application to polyurethane chemistry since these amines are used as important precursors for diisocyanates.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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