反应详情

Combine potassium hydroxide (3 g, 0.054 mol) and phenol (15 g, 0.16 mol), and heat to 110° C. until the potassium hydroxide is dissolved. Cool the mixture to room temperature and add 5-fluoro-2-nitrotoluene (7.75 g, 0.05 mol) in one aliquot. Heat the reaction mixture to 130° C. for 30 min, cool to room temperature, and then pour into 10% NaOH (200 mL). Extract the aqueous solution with ether (2×100 mL), combine the organic layers and wash with 10% NaOH (2×100 mL), water (2×100 mL), dry over Na2SO4 and concentrate in vacuo. Chromatograph on silica gel eluting with hexanes/ethyl acetate to give 2-nitro-5-phenoxytoluene as a solid: 1H NMR (300 MHz, CDCl3) 2.59 (s, 3H), 6.81-6.85 (m, 2H), 7.06-7.09 (m, 2H), 7.22-7.26 (m, 1H), 7.40-7.45 (m, 2H), 8.03-8.06 (m, 1H).

1. dissolutionis dissolved
2. temperatureHeat the reaction mixture to 130° C. for 30 min
3. temperaturecool to room temperature
4. extractionExtract the aqueous solution with ether (2×100 mL)
5. washwash with 10% NaOH (2×100 mL), water (2×100 mL)
6. dry with materialdry over Na2SO4
7. concentrationconcentrate in vacuo