反应详情

温度

0 °C

In a 15 mL round-bottomed flask, 3-(tert-butoxycarbonylamino)pyrrolidine (0.50 g, 2.68 mmol) was dissolved in CH2Cl2 (5 mL). Triethylamine (0.45 mL, 3.22 mmol) was added and the reaction mixture was cooled to 0° C. Methanesulfonyl chloride (0.25 mL, 3.22 mmol) was added dropwise and the reaction mixture was slowly warmed to room temperature and stirred overnight. The reaction was diluted with CH2Cl2 (20 mL) and quenched with 1.0 M aqueous HCl (5 mL). The aqueous layer was extracted with CH2Cl2 then the combined organics were dried over Na2SO4, filtered and concentrated to afford 0.90 g of (1-methanesulfonyl-pyrrolidin-3-yl)-carbamic acid tert-butyl ester as a light brown solid which was used without further purification.

1. temperaturethe reaction mixture was slowly warmed to room temperature
2. customquenched with 1.0 M aqueous HCl (5 mL)
3. extractionThe aqueous layer was extracted with CH2Cl2
4. dry with materialthe combined organics were dried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated