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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2,6-Dichloropyridine | HCID 16989 | — |
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Product | 2-Chloro-6-hydrazinopyridine | HCID 320004 | 65.1% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06949648B2 |
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| Source dataset | uspto-grants-2005_09 |
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| ORD ID | ord-86ee93274f1242f89fa1d58b842fc784 |
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| Source note | uspto-grants-2005_09 |
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