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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 491847Generated: October 30, 2026

Nitric Acid → HCID 21097332, compound

https://huagongshe.com/reaction/491847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSodium HydroxideHCID 14798—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 178497763HCID 178497763—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 21097332HCID 2109733222%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a suspension of 85 mg (0.261 mmol) of 3-(2-mercapto-4-pyridin-3-yl-imidazol-1-yl)-4-methyl-benzoic acid methyl ester in 1.8 mL of water was added 0.68 mL of concentrated HNO3 and 2 mg of NaNO2. After 2 h, the mixture was cooled to 0° C. and 4N NaOH was added until the pH reached about 10. The mixture was stirred for 30 min then HOAc was added until the pH reached about 6. The resulting precipitate was filtered, washed with water and dried to provide 16 mg (0.057 mmol, 22%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531560B2
Source datasetuspto-grants-2009_05
ORD IDord-048ca3e5ba7e46ff9c006e641d690ac2
Source noteuspto-grants-2009_05