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Unedle Metalle für noble Anwendungen: Asymmetrische Co-, Ni-, Fe- und Mn-katalysierte C-H Aktivierung
Antragsteller
Professor Dr. Lutz Ackermann
Fachliche Zuordnung
Organische Molekülchemie - Synthese, Charakterisierung
Förderung
Förderung von 2017 bis 2021
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 391136690
Erstellungsjahr
2021
Zusammenfassung der Projektergebnisse
Within this project, we devised transition metal-catalyzed highly enantioselective C–H activations. Thus, sustainable cobalt-catalyzed C–H activation permitted the efficient construction of chiral heterocycle motifs including the synthesis of atropisomeric heterobiaryls. The C–H alkylation and arylation were enabled by the design of novel chiral ligands based on carboxylic acids and adamantyl-substituted N-heterocyclic carbenes, respectively. Enantioselective Electrocatalysis was realized in terms of asymmetric C−H activation through transient directing groups with easily-accessible amino acids. Thus, enantiomerically enriched heterobiaryls were achieved by palladaelectro-catalyzed olefination.
Projektbezogene Publikationen (Auswahl)
- Enantioselective Cobalt(III)-Catalyzed C–H Activation Enabled by Chiral Carboxylic Acid Cooperation. Angew. Chem. Int. Ed. 2018, 57, 15425-15429
F. Pesciaioli, U. Dhawa, J. C. A. Oliveira, R. Yin, M. John, L. Ackermann
(Siehe online unter https://doi.org/10.1002/anie.201808595) - Enantioselective C-H Activation with Earth-Abundant 3d Transition Metals. Angew. Chem. Int. Ed. 2019, 58, 12803-12818
J. Loup, U. Dhawa, F. Pesciaioli, J. Wencel-Delord, L. Ackermann
(Siehe online unter https://doi.org/10.1002/anie.201904214) - Enantioselective Palladaelectro‐Catalyzed C–H Activations by Transient Directing Groups: Expedient Access to Helicenes. Angew. Chem. Int. Ed. 2020, 59, 13451-13457
U. Dhawa, C. Tian, T. Wdowik, J. C. A. Oliveira, J. Hao, L. Ackermann
(Siehe online unter https://doi.org/10.1002/anie.202003826) - Enantioselective Palladaelectro-Catalyzed C–H Olefinations and Allylations for N–C Axial Chirality. Chem. Sci. 2021, 12, 14182-14188
U. Dhawa, T. Wdowik, X. Hou, B.Yuan, J. C. A. Oliveira, L. Ackermann
(Siehe online unter https://doi.org/10.1039/d1sc04687j)