反应详情

温度

-40 °C

To a solution of (R)-tert-butyl 3-((R)-(5-fluoro-2-methylphenyl)(hydroxy)methyl)piperidine-1-carboxylate (1.2 g, 0.0037 mol) in MeCN (20 mL), NaH (0.27 g, 0.011 mol) was added at 0° C. The mixture was stirred for 1 hr followed by cooling to −40° C. and adding bromoacetonitrile (1.3 g, 0.011 mol) in portions. The mixture was stirred for 0.5 hour at −20° C. The reaction was quenched with H2O. The mixture was extracted with CH2Cl2. The organic layer was dried by Na2SO4, concentrate to get the target molecule (R)-tert-butyl 3-((R)-(cyanomethoxy)(5-fluoro-2-methylphenyl)methyl)piperidine-1-carboxylate (1.2 g, 90%).

1. stirringThe mixture was stirred for 0.5 hour at −20° C
2. customThe reaction was quenched with H2O
3. extractionThe mixture was extracted with CH2Cl2
4. dry with materialThe organic layer was dried by Na2SO4
5. concentrationconcentrate