Trifluoromethanesulfinamide from Ephedrine: A More Efficient Trifluoro-methylating Reagent
作者:Thierry Billard、Bernard R. Langlois、Solveig Roussel、Laurent Saint-Jalmes
DOI:10.1055/s-2004-831322
日期:——
Nucleophilic trifluoromethylation of non-enolizable and enolizable carbonyl compounds was achieved with the trifluoromethanesulfinamide derived from O-silylated ephedrine. In contrast to the trifluoroacetamide analog, previously described, this reagent is able to trifluoromethylate more acidic enolizable compounds.
Trifluoroacetic Acid Derivatives as Nucleophilic Trifluoromethylating Reagents
作者:Thierry Billard、Bernard R. Langlois、Lukas Jablonski、Jérôme Joubert
DOI:10.1055/s-2003-36787
日期:——
Secondary trifluoroacetamides and alkyl trifluoroacetates can be used as nucleophilictrifluoromethylatingreagents towards non-enolizable ketones by action of potassium tert-butoxide.