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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2246784Generated: November 1, 2026

1-Bromo-2-Chloroethane → 1-(4-Bromophenyl)Cyclopropanecarbonitrile

https://huagongshe.com/reaction/2246784

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-ChloroethaneHCID 7849—
ReactantSodium HydroxideHCID 14798—
ReactantBenzeneacetonitrile, 4-bromo-HCID 27914—
CatalystBenzyl triethylammonium chlorideHCID 66133—
SolventDiethyl EtherHCID 3283—
Product1-(4-Bromophenyl)CyclopropanecarbonitrileHCID 2795273—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a room temperature solution of 4-bromophenylacetonitrile (18.0 g) in a solution of 22 mL of sodium hydroxide (50% in water W/W) were added 1-bromo-2-chloroethane and (2.0 mL) and benzyltriethylammonium chloride (627 mg). The mixture was heated at 60° C. overnight. The reaction mixture was cooled to room temperature and diethyl ether was added (300 mL) and partitioned. The ether layer was washed with water (100 mL), hydrogen chloride (100 mL, 10% HCl in water) and brine. Then dried with magnesium sulfate and the solvent removed in vacuo. The residue was purified by swish using diethyl ether and hexanes to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07687524B2
Source datasetuspto-grants-2010_03
ORD IDord-defc3bb75698410da119f75ac8a86ae9
Source noteuspto-grants-2010_03