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NEW JOURNAL OF CHEMISTRY
Volume -, Issue -, Pages -Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3nj03331
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Colloidal polystyrene-supported cooperative imidazolidinone/thiourea catalysts were developed for efficient aldol reaction and substrate-selective Knoevenagel condensation in water, with the synergistic effect of hydrophobic interaction and hydrogen bonding between the substrates and catalysts playing a crucial role. These catalysts show great potential for efficient and selective catalysis in other reactions.
The development of immobilized cooperative catalysts that are efficient and selective is of paramount importance. Here we have developed colloidal polystyrene-supported cooperative imidazolidinone/thiourea catalysts by nanoprecipitation. The well-matched pairing of imidazolidinone and thiourea groups contributed to highly cooperative catalysis in aldol reaction and substrate-selective Knoevenagel condensation in water due to the synergistic effect of hydrophobic interaction and hydrogen bonding between the substrates and catalysts. Such colloidal polystyrene-supported cooperative imidazolidinone/thiourea catalysts have the potential for efficient and selective catalysis of other reactions. Colloidal polystyrene-supported cooperative imidazolidinone/thiourea catalysts were developed for efficient aldol reaction and substrate-selective Knoevenagel condensation in water.
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