چكيده به لاتين
In this work, three-component reaction between malononitrile, active CH-acidic materials (dimedone and …) and 1,2-diketones (isitin, acenaphthoquinone) in the presence of GO-LS-PANI as a catalyst and using ball-mill for synthesis of spirooxindoles and spiroacenaphtilen were performed. GO -LS-PANI can be recoverd easily and reused without any appreciable loss of catalytic activity.The advantages of this procedure are mild and solvent-free conditions, without temperature, short reaction time, high yields, adjustment for environment and green chemistry, easy separation of the catalyst and non-toxic inexpensive catalyst.
Keywords: Polymer nanocomposites, Graphene oxide(GO), Polyaniline(PANI), Lignosulfonate (LS), Pyran, Spirooxindol, Ball-Mill, green chemistry, synthesis
