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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 477528Generated: October 29, 2026

Hydrochloric Acid → HCID 178499043, compound

https://huagongshe.com/reaction/477528

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl 5-amino-1H-1,2,4-triazole-3-carboxylateHCID 77201—
ReactantEthyl isobutyrylacetateHCID 81583—
SolventAcetic AcidHCID 176—
ProductHCID 178499043HCID 17849904355.6%

Reaction Steps

A mixture of 3-amino-5-methoxycarbonyl-s-triazole (60 g) and ethyl 3-oxo-4-methylvalerate (65 g) in 600 ml of acetic acid was refluxed for five hours, the reaction mixture was cooled to room temperature, its pH was lowered to 1 to 2 with concentrated hydrochloric acid, and the separated crystals were recrystallized from ethanol, affording 54 g of the objective compound as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04888332
Source datasetuspto-grants-1989_12
ORD IDord-1837fd41f4b841ae94cca38b944e622b
Source noteuspto-grants-1989_12