反应详情

A mixture of 4-aminobenzonitrile (1.58 g), triethylamine (1.36 g), and dichloromethane (20 mL) was cooled in ice under a nitrogen atmosphere. To this mixture was added perfluorobutyryl chloride (3.11 g) in dichloromethane (10 mL) and the resulting mixture was allowed to warm to room temperature and was then stirred for three hours. The reaction mixture was diluted with HCl solution (1N, 50 mL) and the layers were partitioned in a separatory funnel. The organic phase was washed with a saturated brine solution, dried over MgSO4, filtered and concentrated with a rotary evaporator. The residue was dissolved in dichloromethane. Upon dilution with hexane the product precipitated to give 1.55 g of 2,2,3,3,4,4,4-heptafluoro-N-[4-(cyano)phenyl]butanamide, m.p. 116°-118° C.

1. temperaturewas cooled in ice under a nitrogen atmosphere
2. customthe layers were partitioned in a separatory funnel
3. washThe organic phase was washed with a saturated brine solution
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. concentrationconcentrated with a rotary evaporator
7. dissolutionThe residue was dissolved in dichloromethane
8. customUpon dilution with hexane the product precipitated