反应详情

温度

0 °C

Dissolve 3,5 dichlorophenol (1 kg, 6.13 mol) in 3 L dimethylformamide (DMF) and cool to 0° C. Add imidazole (918.74 g, 6.75 mol), followed by tertbutyldimethylsilyl chloride (1017.13 g, 6.75 mol). Warm the mixture to room temperature and stir for 15 minutes. Pour into water (6 L) and extract with ether (4 L). Wash the organic layer with water 2 times, 10% aqueous lithium chloride solution then brine before drying over sodium sulfate. Filter and concentrate under vacuum to obtain tert-butyl-(3,5-dichloro-phenoxy)-dimethyl-silane (1700 g) as an oil.

1. temperatureWarm the mixture to room temperature
2. extractionextract with ether (4 L)
3. washWash the organic layer with water 2 times, 10% aqueous lithium chloride solution
4. dry with materialbrine before drying over sodium sulfate
5. filtrationFilter
6. concentrationconcentrate under vacuum