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EnglishNew 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.
| Titolo: | Synthesis of calix[4]arene derivatives bearing chiral pendant groups as ligands for enantioselective catalysis |
| Autori: | |
| Data di pubblicazione: | 2005 |
| Rivista: | |
| 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. |
| Handle: | http://hdl.handle.net/11386/1058633 |
| Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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