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Electrophilic trifluoromethylation of carbonyl compounds and their nitrogen derivatives under copper catalysis

Prieto, Alexis and Baudoin, Olivier and Bouyssi, Didier and Monteiro, Nuno. (2016) Electrophilic trifluoromethylation of carbonyl compounds and their nitrogen derivatives under copper catalysis. Chemical Communications, 52. pp. 869-881.

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Abstract

Recent advances in electrophilic trifluoromethylation reactions of carbonyl compounds and their usual surrogates are highlighted with particular focus on copper-catalysed (or mediated) C–CF3 bond forming reactions. Ketones and aldehydes (notably via their enol ether and enamine derivatives) enable electrophilic trifluoromethylation at the α-carbon of the carbonyl compounds, whereas aldehyde N,N-disubstituted hydrazones undergo electrophilic attack of the cationic or radical CF3 species at the azomethine carbon, thus providing an umpolung alternative to nucleophilic trifluoromethylation of carbonyl compounds. A reversal in reactivity is also observed for conjugated systems. While α,β-unsaturated ketones regioselectively incorporate the CF3 moiety at the α-position of the enones, trifluoromethylation occurs preferentially at the olefinic β-carbon of the corresponding hydrazones.
Faculties and Departments:05 Faculty of Science
05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Synthetische Chemie (Baudoin)
UniBasel Contributors:Baudoin, Olivier
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Royal Society of Chemistry
ISSN:1359-7345
e-ISSN:1364-548X
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:02 Jul 2019 08:39
Deposited On:09 Jan 2017 15:22

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