Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1026142Generated: October 26, 2026

1,2-Dibromoethane → HCID 67179206, compound

https://huagongshe.com/reaction/1026142

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DibromoethaneHCID 7839—
ReactantSodium HydroxideHCID 14798—
Reactant3-Chloro-4-fluorobenzyl cyanideHCID 2773725—
CatalystBenzyl triethylammonium chlorideHCID 66133—
SolventWaterHCID 962—
ProductHCID 67179206HCID 67179206—

Reaction Steps

To a mixture of 3-chloro-4-fluoro-phenylacetonitrile (8.48 g), 1,2-dibromoethane (13 ml) and benzyltriethylammonium chloride (0.46 g) was added sodium hydroxide solution (50% in water, 20 ml) at room temperature. The mixture was vigorously stirred overnight. Water was added and the aqueous phase was extracted twice with diethyl ether. The combined organic layers were washed with water and brine, dried over MgSO4 and concentrated. The residue was purified by column chromatography (SiO2; heptane/EtOAc) to give 1-(3-chloro-4-fluorophenyl)-cyclopropanecarbonitrile as light yellow liquid (3.91 g). 1H-NMR (300 MHz, CDCl3, δ): 1.35-1.40 (m, 2H), 1.72-1.76 (m, 2H), 7.10-7.21 (m, 2H), 7.26-7.34 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08729113B2
Source datasetuspto-grants-2014_05
ORD IDord-1e642f8ae77f4603a3cfe5a8d2d15b77
Source noteuspto-grants-2014_05