- Unlocking Amides through Selective C–N Bond Cleavage: Allyl Bromide-Mediated Divergent Synthesis of Nitrogen-Containing Functional Groups
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We report a new set of reactions based on the unlocking of amides through simple treatment with allyl bromide, creating a common platform for accessing a diverse range of nitrogen-containing functional groups such as primary amides, sulfonamides, primary amines, N-acyl compounds (esters, thioesters, amides), and N-sulfonyl esters. The method has potential industrial applicability, as demonstrated through gram-scale syntheses in batch and in a continuous flow system.
- Govindan, Karthick,Chen, Nian-Qi,Chuang, Yu-Wei,Lin, Wei-Yu
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p. 9419 - 9424
(2021/11/30)
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- N-heterocyclic carbene-catalyzed redox amidations of α-functionalized aldehydes with amines
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A catalytic method for the direct synthesis of carboxylic acid amides from amines and α-functionalized aldehydes is possible through the synergistic role of a N-heterocyclic carbene catalyst and imidazole, affording amides via activated carboxylates catalytically generated via an internal redox reaction of the aldehyde substrates. The use of imidazole or other N-heterocycles as an additive is essential to overcoming imine formation and serves as a uniquely reactive substrate for the generation of an acyl imidazolium intermediate that is converted to the final amide product. Copyright
- Bode, Jeffrey W.,Sohn, Stephanie S.
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p. 13798 - 13799
(2008/09/16)
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