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. Author manuscript; available in PMC: 2017 Mar 24.
Published in final edited form as: Angew Chem Int Ed Engl. 2016 Mar 1;55(14):4567–4572. doi: 10.1002/anie.201600105

Scheme 2.

Scheme 2

Reactions were performed on a 0.100 mmol scale to determine yields by 19F NMR spectroscopy. Yields of isolated products are shown in parentheses for reactions performed on a 0.400 mmol scale. General conditions: aryl bromide (1 equiv), 2 (1.5 equiv), CuOAc (20 mol %), KF (1.2 equiv), 100 °C, 24 h. aReactions performed with toluene as solvent and 18-cr-6 (1.2 equiv) as additive.