M-Phenylenediamine → HCID 24711068, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-bromo-1-fluoro-2-nitro-benzene (1.14 ml, 9.25 mmol), benzene-1,3-diamine (1.96 g, 18.1 mmol) and DIPEA (1.93 ml, 11.1 mmol) in dry NMP (5 ml) was deoxygenated by evacuate/fill N2 (×3), then stirred and heated at 120° C. under N2 for 18 hours. After cooling to RT the mixture was partitioned between EtOAc and 0.5N HCl. The organic layer was washed with H2O (×1), brine (×1) then dried (MgSO4), filtered and evaporated. The residue was purified by chromatography on silica (10→40% EtOAc/petrol) to give the title compound (1.8 g) as a red solid. 1H NMR (400 MHz, DMSO-d6): 9.28 (1H, s), 8.20 (1H, d), 7.63 (1H, dd), 7.14 (1H, d), 7.07 (1H, t), 6.49 (1H, s), 6.48-6.39 (2H, m), 5.24 (2H, s).

Provenance & Evidence