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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1978168Generated: October 25, 2026

Ethyl cyanoacetate → Ethyl 2-cyano-3-hydroxy-4,4,5,5,5-pentafluoro-2-pentenoate

https://huagongshe.com/reaction/1978168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl cyanoacetateHCID 7764—
ReactantTriethylamineHCID 8471—
ReactantPerfluoropropionyl chlorideHCID 67911—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 2-cyano-3-hydroxy-4,4,5,5,5-pentafluoro-2-pentenoateHCID 86756713—

Reaction Steps

To 20 ml of tetrahydrofuran, 3.39 g (30 mmol) of ethyl cyanoacetate and 6.06 g (60 mmol) of triethylamine were dissolved and stirred at room temperature. Successively, 5.47 g (30 mmol) of pentafluoropropionyl chloride was dropwise added and stirred for 5 hours at room temperature. However, formation of desired product could not be confirmed.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06235911B1
Source datasetuspto-grants-2001_05
ORD IDord-5ebf959e1e1d4832bd243770b69d9c26
Source noteuspto-grants-2001_05