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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 440537Generated: October 30, 2026

1,4-Dibromobutane → 1-(2-Chlorophenyl)cyclopentane-1-carbonitrile

https://huagongshe.com/reaction/440537

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DibromobutaneHCID 8056—
ReactantPotassium HydroxideHCID 14797—
Reactant(o-Chlorophenyl)acetonitrileHCID 76112—
SolventDimethyl SulfoxideHCID 679—
Product1-(2-Chlorophenyl)cyclopentane-1-carbonitrileHCID 1574271861.5%

Reaction Steps

A mixture of 2-chlorophenylacetonitrile (20 g), 1,4-dibromobutane (28.5 g) and dimethyl sulphoxide (100 ml) was added dropwise to a stirred suspension of powdered potassium hydroxide (26 g) in dry dimethylsulphoxide (300 ml). The mixture was stirred for one hour, then poured onto ice/water and extracted with ethyl acetate. The extracts yielded an oil which was distilled under vacuum (b.p. 112°-116° C./1 mbar) to give 1-(2-chlorophenyl)cyclopentanecarbonitrile (16.7 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05519034
Source datasetuspto-grants-1996_05
ORD IDord-d4d6b0ed3d174df69eb4aa5a99174889
Source noteuspto-grants-1996_05