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.

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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
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article

Enantioselective Access to N -Alkylindoles via NHC–Nickel-Mediated 1,2-Difunctionalization of 1-Vinylindoles

Mei Luo, Hao Li, Jun Liu, Hongyu Wang
Organic Letters
N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
article

Enantioselective Access to N -Alkylindoles via NHC–Nickel-Mediated 1,2-Difunctionalization of 1-Vinylindoles

Mei Luo, Hao Li, Jun Liu, Hongyu Wang
article en

Abstract

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.

Organic LettersVol. 27(44)
Qingdao National Laboratory for Marine Science and Technology (CN), Ocean University of China (CN), Anhui Polytechnic University (CN)
Openalex Percentile: Top 76%
N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
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