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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1737259Generated: October 26, 2026

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

https://huagongshe.com/reaction/1737259

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-2-carboxylic 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 numberUS05962457
Source datasetuspto-grants-1999_10
ORD IDord-09d87626a78e48dbae57f4faed0fa2c0
Source noteuspto-grants-1999_10