Abstract
Herein, we synthesized biological magnetic glycoluril tetrakis(methylene phosphorous acid) as a new heterogeneous nano-catalyst. The magnetic nano-catalyst Fe3O4@GTMPA was used for the synthesis of diphenyl nicotinonitrile derivatives by multi-component reaction of wide spread aldehydes, acetophenones, ammonium acetate, and 3-(1H-indol-3-yl)-3-oxopropanenitrile in the solvent-free conditions at 110 °C. The final step of reaction mechanism was preceded via a cooperative vinylogous anomeric-based oxidation (CVABO) as green and convenient approach.
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