Green and highly efficient approach for the reductive coupling of nitroarenes to azoxyarenes using the new mesoporous Fe3O4@SiO2@Co–Zr–Sb catalyst
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DOI: 10.1007/s11164-020-04126-7
Abstract: Efficient, green, simple and environmentally friendly approach for the straightforward reductive coupling of nitroarenes to the corresponding azoxyarenes has been developed in the presence of Fe3O4@SiO2@Co–Zr–Sb as a novel recyclable nanocatalyst. The Co–Zr–Sb trimetallic nanoparticles… read more here.
Keywords: fe3o4 sio2; coupling nitroarenes; reductive coupling; approach ... See more keywords
Photomediated reductive coupling of nitroarenes with aldehydes for amide synthesis
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DOI: 10.1039/d2sc03047k
Abstract: In view of the widespread significance of amide functional groups in organic synthesis and pharmaceutical studies, an efficient and practical synthetic protocol that avoids the use of stoichiometric activating reagents or metallic reductants is highly… read more here.
Keywords: aldehydes amide; nitroarenes aldehydes; photomediated reductive; reductive coupling ... See more keywords
Transition metal-free hydrogenative coupling of nitroarenes mediated with dihydropyridine: chemoselective formation of aromatic azoxy, azo, hydrazine and phenazine
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DOI: 10.1039/d5ra04782j
Abstract: Due to the diversity of the compounds containing dinitrogen bonds, chemoselectivity is a key issue to be addressed for the hydrogenative coupling of nitroarenes. A system consisting of Hantzsch 1,4-dihydropyridine (HEH) and a base was… read more here.
Keywords: transition metal; metal free; aromatic azoxy; hydrogenative coupling ... See more keywords
Copper-Catalyzed Redox Coupling of Nitroarenes with Sodium Sulfinates
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DOI: 10.3390/molecules24071407
Abstract: A simple copper-catalyzed redox coupling of sodium sulfinates and nitroarenes is described. In this process, abundant and stable nitroarenes serve as both the nitrogen sources and oxidants, and sodium sulfinates act as both reactants and… read more here.
Keywords: coupling nitroarenes; redox coupling; sodium sulfinates; catalyzed redox ... See more keywords