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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 656384Generated: October 28, 2026

Nitric Acid → HCID 16638331, compound

https://huagongshe.com/reaction/656384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactant1',3'-dihydrospiro[imidazolidine-4,2'-indene]-2,5-dioneHCID 279999—
ProductHCID 16638331HCID 16638331—

Reaction Steps

A solution of (±)-spiro[imidazolidine-4,2′-indane]-2,5-dione (3.0 g, 14.8 mmol, described in Intermediate 5) in conc. nitric acid (33 mL) was stirred at ambient temperature for 1 h. The reaction was then poured onto crushed ice and the resultant solid was isolated by filtration. The crude material was recrystallized from ethanol to give the title compound. MS: m/z=248 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071771B2
Source datasetuspto-grants-2011_12
ORD IDord-939cb1d8d2c54df4b5efd3308e5a2e87
Source noteuspto-grants-2011_12