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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2308945Generated: October 30, 2026

1-Piperazinecarboxylic acid, ethyl ester → HCID 13957256, compound

https://huagongshe.com/reaction/2308945

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
Reactant5,8-QuinoxalinedioneHCID 11355645—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 13957256HCID 1395725647.5%

Reaction Steps

A mixture of 160 mg of 5,8-quinoxalinedione and 316 mg of 1-piperazinecarboxylic acid ethyl ester in 10 ml of dioxane was stirred for 3 hours. The resulting solid was collected, washed with ether and dried, giving 150 mg of the desired product as a red solid, mp 180°-195° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04692449
Source datasetuspto-grants-1987_09
ORD IDord-3de90c4c43e24e7282bc5b9440e6243c
Source noteuspto-grants-1987_09