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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1790157Generated: November 3, 2026

Hydrochloric Acid → HCID 178526561, compound

https://huagongshe.com/reaction/1790157

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
Reactant4-NitroindazoleHCID 18057—
ReactantSodium HypochloriteHCID 23665760—
SolventWaterHCID 962—
ProductHCID 178526561HCID 178526561—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a mixture of NaOH (0.500 g, 12.5 mmol) in H2O (15.0 mL) was added 4-nitroindazole (0.500 g, 3.07 mmol) after which it was heated until a red solution formed. The solution was immediately placed in an ice-water bath for 15 minutes before NaClO (6.00 mL, 5.25%, 4.50 mmol) was added. The mixture was stirred at 0° C. for 5 hour, the pH adjusted to 7 with dilute HCl and extracted with ethyl acetate. The combined organic layer was washed with H2O, concentrated under reduced pressure and purified by flash chromatography to provide the title compound. 1H NMR (300 MHz, DMSO-d6) δ ppm 8.17 (m, 1H), 8.57 (m, 1H), 8.77 (m, 1H), 14.17 (s, 1H); MS (DCI/NH3) m/Z 197[M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07071182B2
Source datasetuspto-grants-2006_07
ORD IDord-931258ae9c17455eb502585125c483a9
Source noteuspto-grants-2006_07