3 years ago

Chemoselective Intermolecular Cross-Enolate-Type Coupling of Amides

Chemoselective Intermolecular Cross-Enolate-Type Coupling of Amides
Daniel Kaiser, Pauline Adler, Nuno Maulide, Christopher J. Teskey
A new approach for the synthesis of 1,4-dicarbonyl compounds is reported. Chemoselective activation of amide carbonyl functionality and subsequent umpolung via N-oxide addition generates an electrophilic enolonium species that can be coupled with a wide range of nucleophilic enolates. The method conveys broad functional group tolerance on both components, does not suffer from formation of homocoupling byproducts and avoids the use of transition metal catalysts.

Publisher URL: http://dx.doi.org/10.1021/jacs.7b08813

DOI: 10.1021/jacs.7b08813

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