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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1761651Generated: November 2, 2026

Acetic Anhydride → Ethyl 2-(3-bromo-2,4,5-trifluorobenzoyl)-3-ethoxyacrylate

https://huagongshe.com/reaction/1761651

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantEthyl 3-bromo-2,4,5-trifluorobenzoylacetateHCID 10592111—
ReactantEthylorthoformateHCID 53630039—
ProductEthyl 2-(3-bromo-2,4,5-trifluorobenzoyl)-3-ethoxyacrylateHCID 5423214399.5%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of ethyl 3-bromo-2,4,5-trifluorobenzoylacetate (1.5 g), ethyl orthoformate (1.0 g) and acetic anhydride (1.2 g) was stirred at 130° C. for 4.5 hours and then concentrated to give the title compound (1.75 g) as yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04826982
Source datasetuspto-grants-1989_05
ORD IDord-3df0a3e839aa47b588a6a3e3ad71faaa
Source noteuspto-grants-1989_05