反应详情

4-Bromo-2-bromomethyl-6-chlorobenzoic acid methyl ester (3.5 g, 9.35 mmol), (4,4-difluorocyclohexyl)methylamine (1.7 g, 11.39 mmol) and K2CO3 (3.15 g, 22.78 mmol) were stirred in toluene (10 mL) at 95° C. for 12 hours. The reaction was partitioned between ethyl acetate and water and the organic layer was washed with brine and dried over anhydrous Na2—SO4. The solvent was removed under reduced pressure and the product was purified by column chromatography (10-25% EtOAc/Hexanes) to afford the title compound as a yellow foam (2.2 g, 45%), 1H NMR (300 MHz, CDCl3): 7.58 (s, 1H), 7.50 (s, 1H), 4.36 (s, 2H), 3.48 (d, 2H), 2.10-2.14 (m, 2H), 1.64-1.82 (m, 5H), 1.35-1.447 (m, 2H)

1. customThe reaction was partitioned between ethyl acetate and water
2. washthe organic layer was washed with brine
3. dry with materialdried over anhydrous Na2—SO4
4. customThe solvent was removed under reduced pressure
5. customthe product was purified by column chromatography (10-25% EtOAc/Hexanes)