反应详情

温度

90 °C

Add 4-(1-hydroxy-2-methyl-butyl)-1-bromo-benzene (1.9 g, 7.8 mmol), zinc cyanide (1.82 g, 15.6 mmol), and tetrakistriphenylphosphine palladium(0) (260 mg, 0.22 mmol) to anhydrous DMF (40 mL) under a nitrogen atmosphere. Heat the mixture at 90° C. for 12 h. Cool the mixture to room temperature, dilute with water and extract the aqueous phase twice with dichloromethane. Wash the combined organic extracts with water and brine. Dry the organic solution over Na2SO4, filter and concentrate in vacuo. Purify by chromatography on silica gel eluting with hexane/EtOAc (1:0 and 20:1) to provide the desired intermediate (1.2 g, 75%). MS (APCI) m/z: 190 (M+H)+.

1. temperatureCool the mixture to room temperature
2. extractionextract the aqueous phase twice with dichloromethane
3. washWash the combined organic extracts with water and brine
4. dry with materialDry the organic solution over Na2SO4
5. filtrationfilter
6. concentrationconcentrate in vacuo
7. customPurify by chromatography on silica gel eluting with hexane/EtOAc (1:0 and 20:1)