Enantioselective Access to <i>N</i> -Alkylindoles via NHC–Nickel-Mediated 1,2-Difunctionalization of 1-Vinylindoles
The indole scaffold is a ubiquitous pharmacophore in natural products and pharmaceuticals, yet the enantioselective construction of enantioenriched <i>N</i>-alkylindoles remains underdeveloped. We report a Ni-NHC-catalyzed enantioselective 1,2-dicarbofunctionalization of readily available 1-vinylindoles, providing a direct route to enantioenriched <i>N</i>-alkylindoles. This protocol accommodates a wide range of aryl triflates, indoles, and arylmagnesium bromides, delivering products in up to 99% ee. A complementary 1,2-hydrocarbofunctionalization was also realized, affording structurally diverse <i>N</i>-alkylindoles with high enantioselectivity. Together, these results establish a general strategy for divergent and efficient access to enantioenriched <i>N</i>-alkylindoles from simple vinylindole precursors.
Authors
- Mei Luo (ORCID: https://orcid.org/0000-0003-4106-4476)
- Hao Li (ORCID: https://orcid.org/0000-0003-1744-1526)
- Jun Liu (ORCID: https://orcid.org/0000-0002-5002-6183)
- Hongyu Wang (ORCID: https://orcid.org/0000-0003-2146-2143)
Institutions
- Qingdao National Laboratory for Marine Science and Technology (CN)
- Ocean University of China (CN)
- Anhui Polytechnic University (CN)
Publication Details
- Journal
- Organic Letters
- Published
- 2025-10-30
- DOI
- https://doi.org/10.1021/acs.orglett.5c03887
- Primary Topic
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.00