反应详情

Under ice-cooling, 15.3 ml of diethylzinc and 6.7 g of diiodomethane were added to 130 ml of dichloromethane. After further adding a solution of 1.07 g of 1-(tert-butoxycarbonyl)-1,2,3,6-tetrahydropyridine-4-methanol in dichloromethane (20 ml), the resulting mixture was stirred at room temperature overnight. Then the reaction mixture was poured into saturated ammonium chloride, extracted with ethyl acetate, washed with a saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate followed by filtration. After distilling off the solvent under reduced pressure, the obtained residue was purified by silica gel column chromatography (eluted with n-hexane/ethyl acetate) to thereby give 90 mg of the title compound as a colorless oily substance.

1. temperatureUnder ice-cooling
2. extractionextracted with ethyl acetate
3. washwashed with a saturated aqueous solution of sodium chloride
4. dry with materialdried over anhydrous magnesium sulfate
5. filtrationfollowed by filtration
6. distillationAfter distilling off the solvent under reduced pressure
7. customthe obtained residue was purified by silica gel column chromatography (eluted with n-hexane/ethyl acetate)