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Rational design, sensing systems

With Chiral Bis(oxazoline)/metal Complexes Several research groups have developed chiral Lewis acids by using chiral 1,3-bis(oxazoline) ligands for asymmetric Diels-AIder reactions. Evans designed C2-symmetric bis(oxazoline)/Cu(II) complexes derived from chiral bis(oxa-zoline)and Cu(OTf)2, and applied them to asymmetric cycloadditions of acryloyl oxazolidinones and thiazolidine-2-thione analogues. Attractive features of this catalyst system include a clearly interpretable geometry for the catalyst-dienophile complex, which rationalizes the sense of asymmetric induction for the cycloaddition process [26] (Eq. 8A.14). [Pg.472]

Table II. Amino acid residues selected for the rational design of the sensing system. The change in intensity upon sulfate binding is depicted for the MDCC-... Table II. Amino acid residues selected for the rational design of the sensing system. The change in intensity upon sulfate binding is depicted for the MDCC-...

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See also in sourсe #XX -- [ Pg.94 ]




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