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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 321976Generated: October 25, 2026

Hydrochloric Acid → HCID 178418386, compound

https://huagongshe.com/reaction/321976

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 2,4-dioxo-4-(2,4,6-trimethylphenyl)butanoateHCID 14945000—
ReactantSodium NitriteHCID 23668193—
SolventEthanolHCID 702—
ProductHCID 178418386HCID 178418386—

Reaction Steps

N2O3 gas was slowly passed into a stirred solution of the product of step A (16.2 g) in 300 mL of ethanol until the disappearance of starting material was confirmed by TLC. N2O3 gas was generated by the dropwise addition of 12N aqueous HCl solution into an aqueous slurry of NaNO2. The solvent was removed from the mixture and 200 mL of water was added to the residue. The product was then extracted into ether. The ether extract was dried over Na2SO4 and evaporated to give 16.1 g of a semi-solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211187B1
Source datasetuspto-grants-2001_04
ORD IDord-2c0368633ec242138ca06c698cd783de
Source noteuspto-grants-2001_04