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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1661052Generated: October 30, 2026

Acetic Acid → (E)-ethyl 2-cyano-2-(5-fluoro-2,3-dihydro-1H-inden-1-ylidene)acetate

https://huagongshe.com/reaction/1661052

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantEthyl cyanoacetateHCID 7764—
Reactant5-Fluoro-1-indanoneHCID 136537—
ReactantAmmonium AcetateHCID 517165—
SolventBenzeneHCID 241—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
Product(E)-ethyl 2-cyano-2-(5-fluoro-2,3-dihydro-1H-inden-1-ylidene)acetateHCID 68217618—

Reaction Steps

A mixture of 5-Fluoro-indan-1-one (150 g, 1 mol, commercially available), and ethyl cyanoacetate (125 g, 1.1 mol), ammonium acetate (154 g, 2 mol) and glacial acetic acid (500 ml) in benzene (1 L) was refluxed with a Dean Stark water trap for 16 h. Then ethyl acetate was added to the reaction mixture and washed with water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08030322B2
Source datasetuspto-grants-2011_10
ORD IDord-d831c262bec94f699eeb0b57372db768
Source noteuspto-grants-2011_10