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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1766057Generated: November 1, 2026

Hydrochloric Acid → HCID 178489905, compound

https://huagongshe.com/reaction/1766057

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl cyanoacetateHCID 7764—
ReactantPotassium CarbonateHCID 11430—
Reactant3-MethoxybenzaldehydeHCID 11569—
Reactant2-Methyl-2-thiopseudourea sulfateHCID 75270—
SolventEthanolHCID 702—
ProductHCID 178489905HCID 178489905—

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of S-methylisothiourea sulfate (139 mg), 3-methoxybenzaldehyde (243 μl), ethyl cyanoacetate (112 μl) and potassium carbonate (145 mg) in abs. ethanol (2 ml) was stirred at 60° C. for 5 h. The reaction mixture was cooled to 0° C. in an ice bath, filtered and the residue was heated in water (H2O) until a clear solution was obtained. The solution was acidified with 2N aq. HCl to pH 2 and cooled to 0° C. in an ice bath. The resulting crystals were collected by filtration and dried in vacuo.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07229990B2
Source datasetuspto-grants-2007_06
ORD IDord-1b6563b6873c45168dcfde0140d5799d
Source noteuspto-grants-2007_06