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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497943Generated: October 30, 2026

Hydrazine hydrate (1:1) → 2-Hydrazinyl-3-methylpyridine

https://huagongshe.com/reaction/497943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-Bromo-3-methylpyridineHCID 220832—
Product2-Hydrazinyl-3-methylpyridineHCID 25084360.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

The title compound was prepared according to the procedure described in U.S. Pat. No. 4,260,767 (1981). A mixture of 2-bromo-3-methylpyridine (29.0 g, 169 mmol) and hydrazine monohydrate (60 mL, 1.24 mol) was heated and stirred at 100° C. for 4 hours. The mixture was ice cooled, and the resulting crude crystals were filtered. The crystals were washed with cold water and air dried, and recrystallized from chloroform/hexane to give the title compound (12.5 g, 60% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949648B2
Source datasetuspto-grants-2005_09
ORD IDord-af4f456eadba4a52a495a7bd0bf6a21c
Source noteuspto-grants-2005_09