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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79455Generated: October 29, 2026

Hydrazine → HCID 67259880, compound

https://huagongshe.com/reaction/79455

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactantethyl 2-(3-bromo-4-nitro-1H-indazol-1-yl)acetateHCID 67261176—
SolventEthanolHCID 702—
ProductHCID 67259880HCID 6725988061.1%

Reaction Steps

A solution of ethyl 2-(3-bromo-4-nitro-1H-indazol-1-yl)acetate (1.48 g, 4.51 mmol) in absolute EtOH (20 mL) was treated at ambient temperature with hydrazine (1.45 g, 45.1 mmol) and was heated at reflux for 16 hours under a nitrogen atmosphere. The reaction mixture was cooled to ambient temperature, and the precipitate was isolated by filtration. The solids were dried under vacuum to afford the product (0.865 g) as a tan powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841455B2
Source datasetuspto-grants-2014_09
ORD IDord-bf8e3b566e07458aba1ab44cd33fab30
Source noteuspto-grants-2014_09