Katayev Research Group has recently published an article in the journal Angewandte Chemie, entitled "Radical Trifluoroacetylation of Alkenes Triggered by a Visible-Light-Promoted C−O Bond Fragmentation of Trifluoroacetic Anhydride".

https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202109235

Abstract

The elusive trifluoroacyl radical can be generated via C−O bond fragmentation of trifluoroacetic anhydride under photoredox conditions and undergoes olefinic C−H bond trifluoroacetylation in a mechanistically unique fashion. The protocol is operationally simple, scalable, and enables the late-stage diversification of complex biorelevant molecules delivering the corresponding a,b-unsaturated trifluoromethyl ketones in a single chemical step.