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Modular Ligands (modular + ligand)
Selected AbstractsChemInform Abstract: Amino-Sugar Modular Ligands,Useful Cores for the Formation of Asymmetric Copper 1,4-Addition Catalysts.CHEMINFORM, Issue 12 2009Antonella De Roma Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Modular Ligands Derived from Amino Acids for the Enantioselective Addition of Organozinc Reactions to Aldehydes.CHEMINFORM, Issue 7 2004Meaghan L. Richmond Abstract For Abstract see ChemInform Abstract in Full Text. [source] Chiral N-Acylethylenediamines as New Modular Ligands for the Catalytic Asymmetric Addition of Alkylzinc Reagents to Aldehydes.CHEMINFORM, Issue 6 2004Christopher M. Sprout Abstract For Abstract see ChemInform Abstract in Full Text. [source] ChemInform Abstract: Polymer-Bound 1-Aryl-3-alkyltriazenes as Modular Ligands for Catalysis.CHEMINFORM, Issue 49 2002Part 2. Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Chiral Diphosphites Derived from D-Glucose: New Highly Modular Ligands for the Asymmetric Catalytic Hydrogenation.CHEMINFORM, Issue 44 2002Montserrat Dieguez Abstract For Abstract see ChemInform Abstract in Full Text. [source] Efficient Synthesis of Structurally Diverse Diazabicycloalkanes: Scaffolds for Modular Dipeptide Mimetics with Tunable Backbone ConformationsEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 7 2004Wolfgang Maison Abstract A stereoselective synthesis of new dipeptide mimetics based on a diazabicycloalkane scaffold is reported. The route starts from enantiomerically pure azabicycloalkenes 1 that are bis(hydroxylated) and coupled N -terminally to a second amino acid. The key step of the reaction sequence is an oxidative cleavage of the resulting dipeptides 5 to give highly functionalised diazabicycloalkanes 6, which can be easily converted into a number of dipeptide mimetics with defined and variable stereochemistry and a number of different amino acid side chains. The backbone dihedral angles within these dipeptide mimetics can be tuned by varying the stereochemistry and the ring sizes of the diazabicycloalkane scaffold. The syntheses of conformationally constrained dipeptide analogues in four to five steps are presented. With the syntheses of dipeptide mimetics 19a,c, suitable linker moieties for conjugation of diazabicycloalkanes to other functional molecules like markers or solid phases are introduced, making these compounds modular dipeptide mimetics that might find applications as modular ligands or as solid-phase-attached scaffolds in combinatorial chemistry. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) [source] |