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Showing 1 to 5 of 5 for “"Rhodiumkomplexe"”.
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Quantitative NMR-Untersuchungen zur Dynamik und Konformation von Chelatkomplexen
… detaillierte NMR-Analyse chiraler Bisphosphan-Rhodiumkomplexe. Die Komplexe des Typs HOCH(CH2PR2)(CH2PR’2)Rh(COD) können als Katalysatoren in der enantioselektiven Hydrierung eingesetzt werden. Die Flexibilität des von Ligand und Zentralmetall gebildeten Chelatsechsringes verursacht dynamische …
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Rhodium-katalysierte, asymmetrische Synthese: Ligandendesign und Methodik
The development of new and efficient catalysts is of utterly importance for the improvement of existing reactions and the discovery of new catalytic reactions. On the one hand this PhD thesis deals with the synthesis of novel, enantiopure diphosphines and phosphine-olefin-complexes bearing a …
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Optically active [(eta 6 -arene)Cr(CO) 3]-based diphosphines : synthesis and application in asymmetric homogeneous hydrogenation
Chiral diphosphines have become an important class of ligands for asymmetric catalysis. It is the success itself of enantioselective catalysis that has enhanced the demand for new chiral ligands for essentially two reasons. The first one is that no class of ligands can be considered universal …
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Exploring the reactivity of alpha-triorganylsilyl alpha-diazo esters : C-H activation, insertion reactions, and rearrangements
The metal-catalyzed reactions of Alpha-triorganylsilyl Alpha-diazo esters have been studied, with an emphasis on: · Dirhodium(II)-catalyzed insertions of Alpha-triorganylsilyl Alpha-diazo esters into activated C-H bonds. · Dirhodium(II)-catalyzed reactions of -triorganylsilyl Alpha-diazo esters …
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Axial chirale Phosphite als Liganden in der enantioselektiven Rhodium-katalysierten Hydrierung
In the pharmaceutical and agrochemical industry enantiomerically pure substances become more and more important as drugs or chiral building blocks. The Rhodium-catalyzed hydrogenation is a very effective way to produce such enantiomerically pure substances. Activity and selectivity of the …