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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 126985Generated: October 30, 2026

Hydrochloric Acid → HCID 431907, compound

https://huagongshe.com/reaction/126985

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 4-chloroacetoacetateHCID 69484—
ReactantThiosemicarbazideHCID 2723789—
ProductHCID 431907HCID 431907—

Reaction Steps

Reaction of thiosemicarbazide and ethyl 4-chloroacetoacetate in warm concentrated hydrochloric acid yielded 2-imino-3-aminothiazoline-4-acetic acid (Compound IIIA), which is also obtained by heating the hydrochloride of Compound IA in hydrochloric acid. Refluxing Compound IIIA in ethanolic hydrochloric acid produces the hydrochloride of the corresponding acetate, Compound IIIB (ethyl 2-imino-3-aminothiazoline 4-acetate.)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04254259
Source datasetuspto-grants-1981_03
ORD IDord-f99f589d7eca4be99e4be32e453f9046
Source noteuspto-grants-1981_03