New chiral calix[4]arene derivatives have been synthesized by appending at the lower rim amino acid (L-tyrosine, L-aspartic, acid, L-valine, and L-tryptophan) or pinene-like (myrtenyl and homomyrtenyl) units or by distal intrabridging with a binaphthyl amine scaffold. The application of these derivatives in enantioselective catalysis was studied by testing the catalytic activities of the corresponding Ti(IV)/calixarene complexes, prepared in situ, in the asymmetric aldol reaction of Chans silyloxydiene with p-nitrobenzaldehyde.

Synthesis of calix[4]arene derivatives bearing chiral pendant groups as ligands for enantioselective catalysis

GAETA, CARMINE;DE ROSA, Margherita;SORIENTE, Annunziata;NERI, Placido
2005-01-01

Abstract

New chiral calix[4]arene derivatives have been synthesized by appending at the lower rim amino acid (L-tyrosine, L-aspartic, acid, L-valine, and L-tryptophan) or pinene-like (myrtenyl and homomyrtenyl) units or by distal intrabridging with a binaphthyl amine scaffold. The application of these derivatives in enantioselective catalysis was studied by testing the catalytic activities of the corresponding Ti(IV)/calixarene complexes, prepared in situ, in the asymmetric aldol reaction of Chans silyloxydiene with p-nitrobenzaldehyde.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/1058633
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