(4-Bromophenyl)boronic acid → 8-(4-Bromo-phenyl)-2-chloro-[1,2,4]triazolo[1,5-a]pyridine

Participants

Reaction Steps

8-(4-Bromo-phenyl)-2-chloro-[1,2,4]triazolo[1,5-a]pyridine was prepared from 8-bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyridine (1.0 g, 4.5 mmol) and 4-bromobenzeneboronic acid (1.0 g, 5.0 mmol) in a manner analogous to Example 2c. Product isolated as an off-white solid (1.0 g, 72%). 1H NMR (400 MHz, CDCl3, δ, ppm): 8.51 (d, J=6.5 Hz, 1H), 7.88 (d, J=7.1 Hz, 2H), 7.70 (d, J=7.0 Hz, 1H), 7.65 (d, J=7.1 Hz, 2H), 7.16 (t, J=7.5 Hz, 1H). MS=310, 312 (MH)+.

Provenance & Evidence