Phenylacetonitrile → 2-(4-Chlorophenyl)pentanenitrile

Into 4 ml of benzene and 10 ml of 50% sodium hydroxide aqueous solution were added 1.2 ml of α-phenylacetonitrile, 1 ml of bromochloropropane and a catalytic amount of tri-n-butylammonium iodide, and the whole mixture was stirred at room temperature overnight under nitrogen gas stream. Then 0.5 ml of bromochloropropane was further added to the reaction mixture and reacted at 40° C. for 3 hours. After the reaction was completed, the reaction mixture was extracted with diethyl ether, and the extract was washed with an aqueous solution saturated with sodium chloride, and dried with anhydrous magnesium sulfate. The solvent was removed by evaporation under reduced pressure, and the thus obtained residue was purified by means of a silica gel column chromatography (eluent: n-hexane:ethyl acetate =5:1) to yield 1.7 g of 4-chloro-1-cyanobutylbenzene.

1. customreacted at 40° C. for 3 hours
2. extractionthe reaction mixture was extracted with diethyl ether
3. washthe extract was washed with an aqueous solution saturated with sodium chloride
4. dry with materialdried with anhydrous magnesium sulfate
5. customThe solvent was removed by evaporation under reduced pressure
6. customthe thus obtained residue was purified by means of a silica gel column chromatography (eluent: n-hexane:ethyl acetate =5:1)

ORD-Eintrag

ord-dc0292e37c264094a9aa07549c9bc947

Quelldatensatz

uspto-grants-1991_12

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05071856