Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 28, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202103365
Keywords
atropisomers; C-H functionalisation; chiral Cp-x complexes; indoles; indolines; rhodium
Categories
Funding
- Max-Planck-Gesellschaft
- Alexander von Humboldt Foundation
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC-2033, 390677874, ME 4267/5-1, 418661145]
- Projekt DEAL
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Axially chiral atropisomeric compounds, especially indole- and indoline-based frameworks, are important heterobiaryl classes widely applied in asymmetric catalysis and medicinal chemistry. The synthesis of C7-substituted indole biaryls and the analogous indoline derivatives is particularly challenging, and efficient methods for their synthesis are in high demand. Transition-metal catalysis is considered one of the most efficient methods for constructing atropisomers.
Axially chiral atropisomeric compounds are widely applied in asymmetric catalysis and medicinal chemistry. In particular, axially chiral indole- and indoline-based frameworks have been recognised as important heterobiaryl classes because they are the core units of bioactive natural alkaloids, chiral ligands and bioactive compounds. Among them, the synthesis of C7-substituted indole biaryls and the analogous indoline derivatives is particularly challenging, and methods for their efficient synthesis are in high demand. Transition-metal catalysis is considered one of the most efficient methods to construct atropisomers. Here, we report the enantioselective synthesis of C7-indolino- and C7-indolo biaryl atropisomers by means of C-H functionalisation catalysed by chiral RhJasCp complexes.
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