Surface Grafted Ppi (G2)dendrimer Stabilized Aunps in Organo Catalysis: Poly (Styrene) Beads with Surface Grafted Ppi (G2) Dendrimer for Stabilization of Aunps : Catalysis to Knovenegal Reaction

In the present study, a stable and convenient form of bead-shaped heterogeneous nanoparticle catalyst viz., PS-PVBC-PPI-(G2)-AuNPs was synthesized using insoluble cross-linked polymer-supported PS-PVBC beads as a matrix and its catalytic activity was examined with Knovenegal condensation reaction. These PS-PVBC-PPI-G2-AuNPs catalyst was able to catalyze the reaction 24 times faster compared to conventional technique. These catalysts maintained its catalytic efficiency even upto five times of recycles. As these catalysts are bead shaped, it can be very well packed into a column reactor and thus the condensation reaction can be conducted in continue mode operation.