Abstract
The use of calixarenes in asymmetric catalysis was described. The current progress of asymmetric catalysts based on calixarene scaffold for the enantioselective reactions including allylation, alkylation, addition of diethylzinc to benzaldehyde, Micheal-type addition, aldol reaction, hydrogenation, Friedal Crafts reaction, epoxidation, hydroformylation, and Biginelli reaction was illustrated. In these cases, calixarenes were used as organocatalysts or ligands in metal-catalyzed asymmetric reactions.
Keywords: Calixarene, Asymmetric catalysis, Supramolecular catalyst, enantioselective reactions, allylation, diethylzinc, benzaldehyde, Micheal-type, aldol reaction, hydrogenation, Friedal Crafts reaction, epoxidation, hydroformylation, Biginelli reaction, calixarenes, organocatalysts, diphosphines, palladium complex, enantioselectivity, triisopropylbenzenesulfonate (Otrips), toyl, benzyl carbonate, tetramethoxyresorcinarene, ammonium thiolate complex, binaphthyl groups, Ti-catalytic site, organocatalyst, hydroxyprolinamide moieties, L-Proline, L-hydroxyproline, interaction, regioselectivity, allylbenzylether, Friedel-Crafts reaction, thiophenol