Bromine → HCID 9889757, compound

Participants

Reaction Steps

A mixture of 4-[2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]benzenesulfonamide (0.062 g 0.17 mmol) and bromine (0.03 g 0.17 mmol) in chloroform (3 ml) was heated under reflux for 24 hours. The reaction mixture was diluted with chloroform (20 ml), washed with M sodium thiosulphate (10 ml), water (10 ml) and dried. Removal of solvent gave a brown solid which was purified by SPE chromatography. Elution with cyclohexane/ethyl acetate (10/1) gave the title compound as a white solid (0.025 g 32%). MH+: 446, 448; NMR: (d6-acetone): δ 6.55 (2H, br) 7.05 (2H, t) 7.30 (1H, d) 7.45 (2H, d) 7.50 (2H, m) 7.55 (1H, d) 7.80 (2H, d) 8.80 (1H, s).

Provenance & Evidence