2,4-Difluoronitrobenzene → HCID 68157072, compound

Participants

Reaction Steps

2,4-Difluoro-1-nitrobenzene (0.38 g, 2.4 mmol), 3-aminocyclobutanecarbonitrile (0.23 g, 2.4 mmol) and then DIPEA (0.425 mL, 2.4 mmol) were added to acetonitrile (10 mL) and the resultant mixture stirred at 20° C. for 16 hours under a nitrogen atmosphere. The mixture was concentrated in vacuo and the residue was purified by silica gel chromatography (Si—PPC; eluting with ethyl acetate in cyclohexane 0-50%) to give the title compound as a yellow solid (0.38 g, 68%). 1H NMR (CDCl3) δ: 8.23 (1H, dd, J=9.2, 5.8 Hz), 8.20 (1H, br s), 6.41-6.49 (1H, m), 6.29 (1H, dd, J=11.0, 2.7 Hz), 4.30-4.43 (1H, m), 3.20-3.31 (1H, m), 2.87-2.98 (2H, m), 2.42-2.55 (2H, m)

Provenance & Evidence