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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1374489Generated: October 30, 2026

Syringaldehyde → Ethyl-alpha-acetyl-3,5-dimethoxy-4-hydroxy-cinnamate

https://huagongshe.com/reaction/1374489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSyringaldehydeHCID 8655—
ReactantEthyl AcetoacetateHCID 8868—
ReactantPiperidin-1-yl-acetic acidHCID 201097—
SolventBenzeneHCID 241—
ProductEthyl-alpha-acetyl-3,5-dimethoxy-4-hydroxy-cinnamateHCID 54431732—

Reaction Steps

Condensation of 3,5-Dimethoxy-4-hydroxy benzaldehyde (syringaldehyde) with ethyl acetoacetate in the presence of piperidine-acetic acid and benzene as the reaction medium at reflux temperature yields the title product. The reaction takes about 3.5 hours for completion.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07166273B2
Source datasetuspto-grants-2007_01
ORD IDord-8fcc5cfecdda4a91b87bd31d63eb0661
Source noteuspto-grants-2007_01