反应详情

Stir the mixture of 1-bromo-3-nitro-5-(trifluoromethyl)benzene (6 g, 22.2 mmol), sodium methanesulfinate (2.8 g, 26.7 mmol), cuprous iodide (0.5 g, 2.22 mmol), L(−)-proline (0.5 g, 4.44 mmol) and sodium hydroxide (0.088 g, 4.44 mmol) in DMSO (20 mL) at 100° C. for 15 hrs under nitrogen atmosphere. Add water, extract the mixture with ethyl acetate (200 mL×3), combine the organic layers, dry over anhydrous sodium sulfate, and concentrate the mixture under reduced pressure. Purify the residue by flash chromatography to afford the desired product (2 g, 33.3%).

1. extractionAdd water, extract the mixture with ethyl acetate (200 mL×3)
2. dry with materialdry over anhydrous sodium sulfate
3. concentrationconcentrate the mixture under reduced pressure
4. customPurify the residue by flash chromatography