Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Molecules labelled with the unnatural isotope fluorine-18 are used for positron emission tomography. Currently, this molecular imaging technology is not exploited at its full potential because many (18)F-labelled probes are inaccessible or notoriously difficult to produce. Typical challenges associated with (18)F radiochemistry are the short half-life of (18)F (<2 h), the use of sub-stoichiometric amounts of (18)F, relative to the precursor and other reagents, as well as the limited availability of parent (18)F sources of suitable reactivity ([(18)F]F(-) and [(18)F]F2). There is a high-priority demand for general methods allowing access to [(18)F]CF3-substituted molecules for application in pharmaceutical discovery programmes. We report the development of a process for the late-stage [(18)F]trifluoromethylation of (hetero)arenes from [(18)F]fluoride using commercially available reagents and (hetero)aryl iodides. This [(18)F]CuCF3-based protocol benefits from a large substrate scope and is characterized by its operational simplicity.

Original publication




Journal article


Nat Chem

Publication Date





941 - 944


Benzene Derivatives, Fluorine Radioisotopes, Fluoxetine, Flutamide, Hydrocarbons, Fluorinated, Iodobenzenes, Isotope Labeling, Magnetic Resonance Spectroscopy, Methylation, Molecular Imaging, Molecular Structure, Positron-Emission Tomography