反应详情

温度

80 °C

A mixture of (R)-tert-butyl 3-((R)-(3-chlorophenyl)(hydroxy)methyl)piperidine-1-carboxylate (0.2234 g, 0.68 mmol), 60% NaH (1.460 g, 36.5 mmol), and 1-bromo-2,2-dimethoxypropane (7.760 g, 42.4 mmol) in THF (20 mL) was heated at 80° C. for 3 d and then cooled to rt. The reaction mixture was then quenched with water, extracted with ethyl acetate (3×), and dried over Na2SO4. After the solvent was evaporated under reduced pressure, the crude product (R)-tert-butyl 3-((R)-(3-chlorophenyl)(2,2-dimethoxypropoxy)methyl)piperidine-1-carboxylate was directly used in the next step without further purification.

1. temperaturecooled to rt
2. customThe reaction mixture was then quenched with water
3. extractionextracted with ethyl acetate (3×)
4. dry with materialdried over Na2SO4
5. customAfter the solvent was evaporated under reduced pressure
6. customthe crude product (R)-tert-butyl 3-((R)-(3-chlorophenyl)(2,2-dimethoxypropoxy)methyl)piperidine-1-carboxylate was directly used in the next step without further purification