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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497993Generated: October 25, 2026

2,6-Dichloropyridine → 2-Chloro-6-hydrazinopyridine

https://huagongshe.com/reaction/497993

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,6-DichloropyridineHCID 16989—
ReactantHydrazine hydrate (1:1)HCID 24654—
Product2-Chloro-6-hydrazinopyridineHCID 32000465.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

The title compound was prepared according to the method described in U.S. Pat. No. 4,260,767 (1981). A mixture of 2,6-dichloropyridine (25.0 g, 169 mmol) and hydrazine monohydrate (60 mL, 1.24 mol) was heated and stirred at 100° C. for 4 hours. The solution was ice cooled, and the resulting crude crystals were collected by filtration. The crystals were washed with cold water and air dried. The crystals thus obtained were recrystallized from chloroform/hexane to give the title compound (15.8 g, 65% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949648B2
Source datasetuspto-grants-2005_09
ORD IDord-86ee93274f1242f89fa1d58b842fc784
Source noteuspto-grants-2005_09