NHC-Copper Mediated Ligand-Directed Radiofluorination of Aryl Halides
| Autor: | Katarina J. Makaravage, Peter J. H. Scott, Wade Winton, Allen F. Brooks, Liam S. Sharninghausen, Melanie S. Sanford |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.diagnostic_test
Ligand Chemistry Aryl Copper mediated Halide General Chemistry Ligands 010402 general chemistry 01 natural sciences Biochemistry Combinatorial chemistry Article Catalysis 0104 chemical sciences Fluorides chemistry.chemical_compound Colloid and Surface Chemistry Positron emission tomography medicine Copper |
| Zdroj: | J Am Chem Soc |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.0c02637 |
| Popis: | [(18)F]-labeled aryl fluorides are widely used as radiotracers for positron emission tomography (PET) imaging. Aryl halides (ArX) are particularly attractive precursors to these radiotracers, as they are readily available, inexpensive, and stable. However, to date, the direct preparation of [(18)F]-aryl fluorides from aryl halides remains limited to S(N)Ar reactions between highly activated ArX substrates and K(18)F. This report describes an aryl halide radiofluorination reaction in which the C(sp(2))–(18)F bond is formed via a copper-mediated pathway. Copper N-heterocyclic carbene complexes serve as mediators for this transformation, using aryl halide substrates with directing groups at the ortho position. This reaction is applied to the radiofluorination of electronically diverse aryl halide derivatives, including the bioactive molecules vismodegib and PH-089. |
| Databáze: | OpenAIRE |
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