Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 31497Generated: October 26, 2026

1-Bromo-2-Chloroethane → 1-(3-Bromophenyl)cyclopropane-1-carbonitrile

https://huagongshe.com/reaction/31497

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-ChloroethaneHCID 7849—
ReactantSodium HydroxideHCID 14798—
Reactant(3-Bromophenyl)acetonitrileHCID 36023—
CatalystBenzyl triethylammonium chlorideHCID 66133—
SolventWaterHCID 962—
Product1-(3-Bromophenyl)cyclopropane-1-carbonitrileHCID 20026178—

Reaction Steps

25 g (0.13 mol) of 3-bromo-benzylcyanide are taken up in 32 ml (0.38 mol) of 1-bromo-2-chloro-ethane and combined with 0.6 g (2.6 mmol) of benzyltriethylammonium chloride. Then a solution of 105.8 g (2.65 mol) of sodium hydroxide in 106 ml of water is added dropwise at 10 to 25° C. After 20 hours at 55° C. the reaction solution is poured onto ice water and extracted with ethyl acetate. The organic extracts are dried and evaporated down. The residue is triturated with petroleum ether, suction filtered and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07425641B2
Source datasetuspto-grants-2008_09
ORD IDord-b3bcfc84b2f1474e97d064fd72e6f4ff
Source noteuspto-grants-2008_09