Ni–NiFe2O4/carbon nanofiber composites with a favourable performance in catalytic hydrogenation were synthesized by fast pyrolysis of FeCl3 and NiCl2 preloaded biomass.
In this study, magnetic nanoparticles of Fe3O4@SbFx were synthesized. Then, the catalytic activity of Fe3O4@SbFx MNPs was highlighted by one-pot reductive-coupling of aromatic nitro compounds to the corresponding azoarene materials with NaBH4.
A one-pot synthesis of 2-(N-substituted amino)-1,4-naphthoquinones from 1,4-naphthoquinones and nitro compounds in water has been developed. This method features mild reaction conditions and provides aromatic nitro compounds with various functional groups such as halogens, methylthio, ester, amide, even allyl, propargyl, and heterocycles, as well as aliphatic nitro compounds that are well tolerated. This method can be scaled up and we conducted further transformation of the obtained 2-(N-substituted amino)-1,4-naphthoquinones to synthesize carbazolequinone derivatives.
Abstract
Two simple, efficient, and environmentally benign protocols for the synthesis of various N-arylacetamides via N-acetylation of arylamines and straightforward one-pot reductive acetylation of aromatic nitro compounds promoted by CuFe2O4 nanoparticles in water at reflux have been developed. The prepared CuFe2O4 MNPs are well known and fully characterized by various techniques. Furthermore, the CuFe2O4 NPs easily separated from the reaction environment using an external magnetic field and can be reused for several times without significant loss of its activity for both mentioned reactions.
Studies on aromatic nitro compounds. V. A simple one-pot preparation of o-aminoaroylnitriles from some aromatic nitro compounds.