Visible-Light-Driven Cobalt-Catalyzed Assembly of Indole-Alcohols Bearing Concurrent Axial and Central Chiralities via Dynamic Kinetic Resolution
N-Arylindoles featuring N–C axially chiral architectures constitute privileged scaffolds prevalent in pharmacologically active natural products and asymmetric catalysis. Despite significance, current synthetic strategies predominantly focus on constructing single stereogenic elements; simultaneous installation of both axial chirality (N–C axis) and central chirality within indole frameworks presents an emerging area. Herein, we disclose that a visible-light-driven cobalt-catalyzed reductive coupling of N-arylindole aldehydes with aryl iodides via dynamic kinetic resolution process enables direct assembly of indole-alcohols bearing both C–N axial and central chiralities with up to 99% ee and >20:1 dr. Mechanistic investigations integrated with DFT calculations reveal a critical axially chiral ketyl radical intermediate, which undergoes cobalt–OH coordination-facilitated SH2-type arylation, delivering enantio-enriched indole-alcohols.
Authors
- Jiaqiong Sun (ORCID: https://orcid.org/0000-0002-8724-2664)
- Jiuli Xia (ORCID: https://orcid.org/0009-0004-0022-0991)
- Guangfan Zheng (ORCID: https://orcid.org/0000-0003-0201-6279)
- Yunliang Guo (ORCID: https://orcid.org/0000-0003-3107-8073)
- Lihan Zhu (ORCID: https://orcid.org/0000-0002-1213-5717)
- Lan Hu
- Ximin Liu (ORCID: https://orcid.org/0000-0002-4827-7936)
- Yujie Li (ORCID: https://orcid.org/0000-0002-7916-1434)
- Qian Zhang (ORCID: https://orcid.org/0000-0002-3136-841X)
Institutions
- Northeast Normal University (CN)
- Chinese Academy of Sciences (CN)
- Shanghai Institute of Organic Chemistry (CN)
- State Key Laboratory of Organometallic Chemistry
Publication Details
- Journal
- ACS Catalysis
- Published
- 2025-10-20
- DOI
- https://doi.org/10.1021/acscatal.5c05979
- Citations
- 9
- Primary Topic
- Axial and Atropisomeric Chirality Synthesis
- Type
- article
- Field-Weighted Citation Impact
- 8.42