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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27693Generated: October 29, 2026

Hydrochloric Acid → HCID 178470434, compound

https://huagongshe.com/reaction/27693

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 5-amino-1-(4-chlorophenyl)-1H-1,2,3-triazole-4-carboxylateHCID 7464933—
SolventPyridineHCID 1049—
ProductHCID 178470434HCID 178470434100%

Reaction Steps

A solution of ethyl 5-amino-1-(p-chlorophenyl)-1,2,3-triazole-4-carboxylate (10 g) in dry pyridine (50 ml) was refluxed for 6 hrs. and the cooled solution poured into dilute hydrochloric acid. The precipitated solid was filtered off and recrystallised from 90% ethanol to give 10 g (100%) of the rearrangement product of mp 161° C. (lit mp 162° C. Ger Offen No. 2,009,134 [1970]). (Found; C, 49.46; H, 4.31; N, 20.85; C11H11CIN4O2 requires; C, 49.54; H, 4.16; N, 21.01%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04223032
Source datasetuspto-grants-1980_09
ORD IDord-de20357b97434d4998e8fa49232530da
Source noteuspto-grants-1980_09