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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 277364Generated: October 30, 2026

Nitric Acid → HCID 178526505, compound

https://huagongshe.com/reaction/277364

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
ReactantHCID 178518983HCID 178518983—
ProductHCID 178526505HCID 178526505—

Reaction Steps

1,2-Benzisoxazol-3-ol (19.7 g, 0.146 mol) is added portionwise to concentrated sulfuric acid. The resultant reaction mixture is treated dropwise with 70% nitric acid (11.3 mL), stirred for 90 minutes, and poured onto ice. The resultant aqueous mixture is filtered to obtain a waxy paste. The paste is recrystallized from a methanol/water mixture to give the title product as a solid which is identified by 1H NMR spectral analysis.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06355796B1
Source datasetuspto-grants-2002_03
ORD IDord-e501d0eb9aa446cc8c0d8a901b5ad299
Source noteuspto-grants-2002_03