反应详情

Dissolve 5-benzyloxy-2-mercapto-phenol (17.8 g, 76.72 mmol) in DMF (300 mL) and add K2CO3 (31.8 g, 0.23 mol) and MeI (32.7 g, 0.23 mol). Stir the reaction mixture at room temperature overnight. Add water (800 mL) and extract the aqueous layer with EtOAc (3×800 mL). Combine the organic layers and dry with Na2SO4, filter, concentrate and purify by flash column chromatography (silica, 5-20% of EtOAc/hexane) to give 13.5 g of 4-benzyloxy-2-methoxy-1-methylsulfanyl-benzene (68%).

1. extractionAdd water (800 mL) and extract the aqueous layer with EtOAc (3×800 mL)
2. dry with materialCombine the organic layers and dry with Na2SO4
3. filtrationfilter
4. concentrationconcentrate
5. custompurify by flash column chromatography (silica, 5-20% of EtOAc/hexane)