Aniline → HCID 11661462, compound

Participants

Reaction Steps

2-(4-Chloro-phenyl)-4-(5-methyl-1H-pyrazol-3-ylamino)-2H-phthalazin-1-one (B-1, 0.10 g, 0.28 mmol), aniline (0.034 g, 0.37 mmol), NaOtBu (0.041 g, 0.43 mmol), tris-(dibenzylideneacetone)-dipalladium (0.026 g, 0.028 mmol) and 2-(di-t-butylphosphino)-biphenyl (0.017 g, 0.057 mmol) under argon were heated to 100° C. for 17 hours, and then allowed to cool to RT. The solvent was evaporated in vacuum, the residue was diluted in H2O (50 ml) and the resulting solid was collected by filtration. Purification of the raw product by chromatography over silica gel with DCM:MeOH (20:1) gave the title compound (0.002 g, 2% yield) as a white solid (example U-1). 1H-NMR: (400 MHz, D6-DMSO) 12.0 (1H, s), 9.23 (1H, s), 8.49 (1H, d), 8.33-8.37 (2H, m), 7.88-7.97 (2H, m), 7.54 (2H, d), 7.28 (2H, t), 7.15 (4H, m), 6.86 (1H, t), 6.25 (1H, s), 2.19 (3H, s); MS (API+)=409.0 (M+H)+.

Provenance & Evidence