ArticleNature communications2022
1,4-Aryl migration in ketene-derived enolates by a polar-radical-crossover cascade.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 39 citations in OpenAlex.
- Metal-free strategy for C-N cross-coupling of benzamide with sulfonamide enabled by a Smiles rearrangement.Communications chemistry · 2026Article
- A radical-polar crossover approach to complex nitrogen heterocycles via the triplet state.Chem · 2026Article
- Smiles-Truce Cascades Enable Heteroaryl Cyclopropane and Sultine Synthesis.Angewandte Chemie (International ed. in English) · 2025Article
- A General Amino-(Hetero)arylation of Simple Olefins with (Hetero)aryl Sulfonamides Enabled by anACS catalysis · 2025Article
- The merger of electro-reduction and hydrogen bonding activation for a radical Smiles rearrangement.Chemical science · 2024Article
- A free-radical design featuring an intramolecular migration for a synthetically versatile alkyl-(hetero)arylation of simple olefins.Chemical science · 2024Article
- Phosphinoyl-Substituted Ketenyl Anions: Synthesis and Substituent Effects on the Structural Properties.Organometallics · 2024Article
- Aryne-Enabled C-N Arylation of Anilines.Angewandte Chemie (International ed. in English) · 2023Article
- Synthesis of Functionalized Pyrrolidinone Scaffolds via Smiles-Truce Cascade.Organic letters · 2023Article
- An NHC-Catalyzed Desulfonylative Smiles Rearrangement of Pyrrole and Indole Carboxaldehydes.The Journal of organic chemistry · 2023Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
The arylation of carboxylic acid derivatives via Smiles rearrangement has gained great interest in recent years. Both radical and ionic approaches, as well as radical-polar crossover concepts, have been developed. In contrast, a reversed polar-radical crossover approach remains underexplored. Here we report a simple, efficient and scalable method for the preparation of sterically hindered and valuable α-quaternary amides via a polar-radical crossover-enolate oxidation-aryl migration pathway. A variety of easily accessible N-alkyl and N-arylsulfonamides are reacted with disubstituted ketenes to give the corresponding amide enolates, which undergo upon single electron transfer oxidation, a 1,4-aryl migration, desulfonylation, hydrogen atom transfer cascade to provide α-quaternary amides in good to excellent yields. Various mono- and di-substituted heteroatom-containing and polycyclic arenes engage in the aryl migration reaction. Functional group tolerance is excellent and substrates as well as reagents are readily available rendering the method broadly applicable.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.