2-Fluoro-5-nitrophenylboronic acid, pinacol ester → 4-(2-Fluoro-5-nitrophenyl)nicotinonitrile

Participants

Reaction Steps

4-Bromonicotinonitrile (1.0 g, 5.5 mmol) was coupled to 2-(2-fluoro-5-nitrophenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (1.9 g, 7.1 mmol) using the method in Example 51. Purification by chromatography on silica gel eluting with dichloromethane gave 4-(2-fluoro-5-nitrophenyl)nicotinonitrile as a white solid: δH (400 MHz, CDCl3) 7.44-7.52 (2H, m), 8.38-8.47 (2H, m), 8.95 (1H, d, J 5), 9.06 (1H, s).

Provenance & Evidence