反应详情

温度

0 °C

A mixture of (2R)-1-Boc-2-(hydroxymethyl)azetidine (1.5 g, 8.0 mmol; see Tetrahedron Asym. 1998, 9, 2791) and triethylamine (3.5 g, 35 mmol; Spectrum) in dry THF (20 mL) was cooled to 0° C., and methanesulfonyl chloride (0.75 mL, 9.7 mmol; Aldrich) was added slowly with stirring. The reaction mixture was allowed to warm to room temperature and stir for 1 hour, then the solid was removed by filtration and the organic phase was concentrated. The residue was dissolved in dichloromethane (40 mL), washed with water (20 mL), and then concentrated to afford the title compound (800 mg, 3.0 mmol; 38% yield). MS (DCl/NH3): 266 (M+1)+, 283 (M+18)+.

1. temperatureto warm to room temperature
2. stirringstir for 1 hour
3. customthe solid was removed by filtration
4. concentrationthe organic phase was concentrated
5. dissolutionThe residue was dissolved in dichloromethane (40 mL)
6. washwashed with water (20 mL)
7. concentrationconcentrated