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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 334382Generated: October 26, 2026

Hydrazine → HCID 178509224, compound

https://huagongshe.com/reaction/334382

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant5-Bromo-2-methoxynicotinonitrileHCID 26369922—
ProductHCID 178509224HCID 17850922472%

Reaction Steps

35 ml (23.47 mmol) of hydrazine is added at room temperature to 5 g (23.47 mmol) of 5-bromo-2-methoxynicotinonitrile. The reaction medium is carried at 100° C. for 3 hours. After returning to room temperature, the precipitate obtained is filtered, rinsed with water and then dried at 50° C. to yield 3.6 g (72%) of 5-bromo-1H-pyrazolo[3,4-b]pyridine-3-amine in the form of a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883821B2
Source datasetuspto-grants-2014_11
ORD IDord-0169b87339f84558bb73083e1a75dc0a
Source noteuspto-grants-2014_11