反应详情

To a solution of 3,4-dimethyl-4-(3-(1H-1,2,3-triazol-4-yl)phenyl)piperidine (Preparation 44, 80 mg, 0.31 mmol) in N,N-dimethyl-formamide (6 mL) was added 1-(2-bromoethyl)-3-methylbenzene (Preparation 46, 67 mg, 0.31 mmol) and sodium hydrogencarbonate (40 mg, 0.47 mmol). The resultant mixture was heated to 80° C. and stirred overnight. The reaction mixture was cooled, poured onto saturated aqueous sodium hydrogencarbonate solution (100 mL) and extracted with ethyl acetate (3×20 mL). The combined extracts were dried over MgSO4, filtered and concentrated in vacuo to give an off-white gum. The crude product was partially purified by column chromatography on a 5 g silica Waters Sep-Pak3 eluting with dichloromethane and then 5% methanol in dichloromethane. The pure fractions were collected to give the title compound as a clear oil (15 mg, 12.8%).

1. temperatureThe reaction mixture was cooled
2. extractionextracted with ethyl acetate (3×20 mL)
3. dry with materialThe combined extracts were dried over MgSO4
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customto give an off-white gum
7. customThe crude product was partially purified by column chromatography on a 5 g silica Waters Sep-Pak3
8. washeluting with dichloromethane
9. customThe pure fractions were collected