2-Fluoro-5-nitrophenylboronic acid, pinacol ester → 3-Fluoro-5-(2-fluoro-5-nitrophenyl)pyridine

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Reaction Steps

Trifluoromethanesulfonic acid 5-fluoropyridin-3-yl ester was coupled with 2-(2-fluoro-5-nitrophenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane as described in Example 1 to give 3-fluoro-5-(2-fluoro-5-nitrophenyl)pyridine as a white solid: δH (360 MHz, CDCl3) 7.39 (1H, t, J 9), 7.65 (1H, m), 8.31-8.36 (1H, m), 8.42 (1H, dd, J 7 and 3), 8.58 (1H, d, J 3), 8.67 (1H, d, J 1).

Provenance & Evidence