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. 2015 Dec 4;17(23):5780-3.
doi: 10.1021/acs.orglett.5b02875. Epub 2015 Nov 14.

Synthesis of [18F]Arenes via the Copper-Mediated [18F]Fluorination of Boronic Acids

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Free PMC article

Synthesis of [18F]Arenes via the Copper-Mediated [18F]Fluorination of Boronic Acids

Andrew V Mossine et al. Org Lett. .
Free PMC article

Abstract

A copper-mediated radiofluorination of aryl- and vinylboronic acids with K(18)F is described. This method exhibits high functional group tolerance and is effective for the radiofluorination of a range of electron-deficient, -neutral, and -rich aryl-, heteroaryl-, and vinylboronic acids. This method has been applied to the synthesis of [(18)F]FPEB, a PET radiotracer for quantifying metabotropic glutamate 5 receptors.

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Figures

Scheme 1
Scheme 1. Nucleophilic Fluorination of Aryl Boron Reagents
Scheme 2
Scheme 2. Radiofluorination of 1-BPin To Form [18F]-4-Fluoroacetophenone 2
Figure 1
Figure 1
Substrate scope. Conditions: 1:5:125 boronic acid:CuOTf2:pyridine at 4 mM concentration of the boronic acid precursor in DMF, K18F, 110 °C, 20 min.
Scheme 3
Scheme 3. Synthesis of [18F]FPEB

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