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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1590377Generated: November 4, 2026

Dichloromethane → Ethyl 4-bromocinnamate

https://huagongshe.com/reaction/1590377

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantAcetic acid, 2-(triphenylphosphoranylidene)-, methyl esterHCID 17453—
Reactant4-BromobenzaldehydeHCID 70741—
ProductEthyl 4-bromocinnamateHCID 141107—

Reaction Conditions

Temperature25 °C

Reaction Steps

4-Bromobenzaldehyde (9.25 g) was dissolved in dry dichloromethane (250 ml) at 25° C. under nitrogen. Carbomethoxymethylene triphenylphosphorane (17.4 g) (ex Lancaster) was added and the solution stirred at 25° C. for 18 hours. The solvent was removed under vacuum. The residue was washed with hexane and filtered. Removal of the hexane under vacuum gave ethyl 4-bromocinnamate (12.12 g). NMR 1H; 7.35 (5H,m), 6.38 (1H,d), 4.1(2H,q), 1.35(3H,t).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05202356
Source datasetuspto-grants-1993_04
ORD IDord-866bb1633071428c9ef1d5f525a6610b
Source noteuspto-grants-1993_04