ArticleAngewandte Chemie (International ed. in English)2025
Transition Metal-Free Formal C─H/C─H Coupling of Arylacetamides and Sulfoxides: An Interrupted Pummerer/[2,3]-sigmatropic Rearrangement Sequence.
Article in Angewandte Chemie (International ed. in English), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Transition Metal-Free Formal C─H/C─H Coupling of Arylacetamides and Sulfoxides: An Interrupted Pummerer/[2,3]-sigmatropic Rearrangement Sequence.Angewandte Chemie (International ed. in English) · 2025Article
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Abstract
Arylacetamides are important structural motifs found in many bioactive compound classes. Given their significance, the selective decoration of arylacetamides by transition metal-catalyzed C─H activation has attracted considerable attention. Here, we report a two-step transition metal-free formal C─H/C─H coupling of arylacetamides with sulfoxides that proceeds via the formation and rearrangement of little-known α-amido sulfonium salts; the amide motif "catches" the sulfoxide partner prior to its delivery to the ortho-position of the aromatic ring by rearrangement of a sulfur ylide intermediate. The approach delivers alkylated arylacetamides bearing sulfide functional handles that can be exploited in downstream manipulations. This protocol has allowed the synthesis of a dopamine D1 receptor allosteric modulator without recourse to the use of transition metals.
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