反应详情

温度

0 °C

13.9 g (74 mmol) of 3-bromo-2-methylphenol are dissolved in 120 mL of dimethylformamide and the mixture is cooled to 0° C. 3.6 g (90 mmol) of 60% sodium hydride are then added portionwise and the medium is stirred for 1 hour. 6.8 mL (90 mmol) of methoxymethyl chloride are then added slowly and the medium is warmed to room temperature and then stirred for 1 hour. After the usual treatment, the residue is purified by chromatography on silica gel (eluent: 80 heptane/20 ethyl acetate). The desired product is obtained in the form of a colourless oil (m=16.2 g; Y=95%).

1. temperaturethe medium is warmed to room temperature
2. stirringstirred for 1 hour
3. customAfter the usual treatment, the residue is purified by chromatography on silica gel (eluent: 80 heptane/20 ethyl acetate)