Gissibl, Anja and Padie, Clement and Hager, Markus and Jaroschik, Florian and Rasappan, Ramesh and Cuevas-Yanez, Erick and Turrin, Cedric-Olivier and Caminade, Anne-Marie and Majoral, Jean-Pierre and Reiser, Oliver (2007) Synthesis and application of phosphorus dendrimer immobilized azabis(oxazolines). ORGANIC LETTERS, 9 (15). pp. 2895-2898. ISSN 1523-7060,
Full text not available from this repository. (Request a copy)Abstract
Phosphorus dendrimer immobilized azabis(oxazoline) ligands can be efficiently synthesized up to the third generation with 48 ligand molecules being attached to the periphery using click chemistry. The so-assembled macromolecules were evaluated in copper(II)-catalyzed asymmetric benzoylations, showing good yields and enantioselectivities. Moreover, the copper(II)-catalysts could be readily recovered and reused in several cycles. The globular structure of the dendritic ligands seems to prevent interference of the triazole moieties in the catalysis, contrasting MeOPEG or polystyrene bound ligands of the same type.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ASYMMETRIC CATALYSIS; BIS(OXAZOLINE) LIGANDS; CLICK-CHEMISTRY; CHIRAL LIGANDS; COPPER-COMPLEXES; TERMINAL ALKYNES; AZIDE-ALKYNE; CYCLOADDITION; CYCLOPROPANATIONS; SELECTIVITY; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Oliver Reiser |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Dec 2020 10:28 |
| Last Modified: | 02 Dec 2020 10:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32498 |
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