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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 436367Generated: October 25, 2026

Ethyl orthoformate → (1,2,4)Triazolo(4,3-a)quinoxaline

https://huagongshe.com/reaction/436367

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthoformateHCID 31214—
Reactant2-HydrazinoquinoxalineHCID 289847—
Product(1,2,4)Triazolo(4,3-a)quinoxalineHCID 15988533—

Reaction Steps

One hundred ml. of triethylorthoformate was mixed with 8.98 g. of 2-hydrazinoquinoxaline. The mixture was stirred at reflux and cooled as in the example above, and 9 g. of crude product was collected. After recrystallization from ethanol, the product was identified as s-triazolo[ 4,3-a]quinoxaline, m.p. 238°-39° C. The final yield was 5 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04008322
Source datasetuspto-grants-1977_02
ORD IDord-4941fc61c7d84f7bb702bd12ee5fd484
Source noteuspto-grants-1977_02