反应详情

A mixture of 4-bromo-phenylene-diamine (19.2 g, 0.103 mol) and 2-(4-trifluoromethyl-phenoxy)-acetimidic acid ethyl ester hydrochloride (35.0 g, 0.123 mol) in EtOH (377 mL) was stirred at room temperature for 12 hours. The reaction was concentrated to give a brown solid, which was partitioned between EtOAc and water. The organic fraction(s) were washed with brine, dried over Na2SO4, and the filtrate was concentrated to afford the title compound as a brown solid (100%). 1H NMR (400 MHz, CD3OD) δ (ppm): 7.74 (s, 1H), 7.62 (d, 2H, J=8.0 Hz), 7.50 (d, 1H, J=8.8 Hz), 7.39 (dd, 1H, J=8.4 Hz, J=1.6 Hz), 7.23 (d, 2H, J=8.4 Hz), 5.41 (s, 2H). Mass Spectrum (LCMS, ESI pos.) Calcd. For C15H11BrF3N2O: 372.2 (M+H), Found 372.9.

1. concentrationThe reaction was concentrated
2. customto give a brown solid, which
3. customwas partitioned between EtOAc and water
4. washThe organic fraction(s) were washed with brine
5. dry with materialdried over Na2SO4
6. concentrationthe filtrate was concentrated