反应详情

To a solution of 3-hydroxy-2,2-dimethylpropanenitrile (0.5 g) in dichloromethane (8 mL) and pyridine (1.5 mL) is added at 0° C. p-toluene-sulfonylchloride (1.0 g) in portions. The mixture is stirred for 12 hours at room temperature, diluted with diethylether and washed with 1 M aqueous HCl solution and brine. After drying (MgSO4) the solvent is evaporated and the residue is chromatographed on silica gel (petrole ether/ethyl acetate 90:10→50:50) to give the title compound. Yield: 770 mg; Mass spectrum (ESI+): m/z=254 [M+H]+.

1. washwashed with 1 M aqueous HCl solution and brine
2. dry with materialAfter drying (MgSO4) the solvent
3. customis evaporated
4. customthe residue is chromatographed on silica gel (petrole ether/ethyl acetate 90:10→50:50)