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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1674458Generated: October 30, 2026

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

https://huagongshe.com/reaction/1674458

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 numberUS08003082B2
Source datasetuspto-grants-2011_08
ORD IDord-4c1f413e2a77400a9530d17a297c7843
Source noteuspto-grants-2011_08