反应详情

6-Cyano-1-hexanol (7.1 g, 55.8 mmol) was dissolved in 30 mL of acetic anhydride under argon atmosphere. To this material was added 5.3 mL (65.4 mmol) of pyridine dropwise and the mixture was left to stir for 2 hours. The contents of the flask were then poured into a beaker containing 50 mL of ice water and the material was stirred for 15 minutes. The mixture was transferred to a 250 mL separatory funnel and ether (100 mL) was added. After shaking the ether phase was isolated and the aqueous phase washed twice more with ether (2×100 mL). The combined ether phase was washed with brine, dried (MgSO4) and filtered. Evaporation (rotary evaporator and vacuum pump) provided 6-cyano-1-acetoxyhexane (the compound of formula (C)) which was used immediately in the next step.

1. waitthe mixture was left
2. additionThe contents of the flask were then poured into a beaker
3. stirringthe material was stirred for 15 minutes
4. customThe mixture was transferred to a 250 mL separatory funnel
5. customwas isolated
6. washthe aqueous phase washed twice more with ether (2×100 mL)
7. washThe combined ether phase was washed with brine
8. dry with materialdried (MgSO4)
9. filtrationfiltered
10. customEvaporation (rotary evaporator and vacuum pump)