Reactivities of electrophilic N-F fluorinating reagents

Electrophilic fluorination represents one of the most direct and useful methods available for the selective introduction of fluorine into organic compounds. Electrophilic fluorinating reagents of the N-F class have revolutionised the incorporation of fluorine atoms into both pharmaceutically- and agrochemically-important substrates. Since the earliest N-F reagents were commercialised in the 1990s, their reactivities have been investigated using qualitative and, more recently, quantitative methods. This review discusses the different experimental approaches employed to determine reactivities of N-F reagents, focussing on the kinetics studies reported in recent years. We make critical evaluations of the experimental approaches against each other, theoretical approaches, and their applicability towards practical problems. The opportunities for achieving more efficient synthetic electrophilic fluorination processes through kinetic understanding are highlighted.

N-Fluorobenzenesulfonimide: a useful and versatile reagent for the direct fluorination and amination of (hetero)aromatic C–H bonds

This review updates recent advances and developments in the direct fluorination and amination of (hetero)aromatic C–H bonds utilizing N-fluorobenzenesulfonimide, classified according to the type of catalyst.

This review updates recent advances and developments in the direct fluorination and amination of (hetero)aromatic C–H bonds utilizing N-fluorobenzenesulfonimide, classified according to the type of catalyst.

Promotional effect of ionic liquids in electrophilic fluorination of methylated uracils

The use of a small amount of ionic liquid as an additive results in acceleration of the fluorination of 6-methyluracil and 1,3,6-trimethyluracil with Selectfluor™ in MeOH and EtOH.

Theoretical study on the mechanism of selective fluorination of aromatic compounds with Selectfluor

The selective fluorination of aromatic compounds with Selectfluor has been studied theoretically. Our calculations indicate that the fluorine bond contributes to the stabilization of the π complexes, and the SET mechanism is preferred over the S_N2 mechanism.