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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 430514Generated: October 26, 2026

Acetic Anhydride → 3-Acetamidopyrazine-2-carboxylic acid o-toluamide

https://huagongshe.com/reaction/430514

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant3-Aminopyrazine-2carboxylic acid o-toluamideHCID 69709687—
Product3-Acetamidopyrazine-2-carboxylic acid o-toluamideHCID 6970977276%

Reaction Steps

A mixture of 3-aminopyrazine-2carboxylic acid o-toluamide (1.0 g, 4.39 mmol) and acetic anhydride (12 mL) was refluxed 2 hours. The solvent was removed and the residue was triturated with hot ethyl acetate. The ethyl acetate slurry was cooled and the product was collected and rinsed with ether to afford 0.893 g (76%) of 3-acetamidopyrazine-2-carboxylic acid o-toluamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06323208B1
Source datasetuspto-grants-2001_11
ORD IDord-00264fb35d554e869a4f49c0ccb5dfa0
Source noteuspto-grants-2001_11