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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | 2-Bromo-3-methylpyridine | HCID 220832 | — |
| Product | 2-Hydrazinyl-3-methylpyridine | HCID 250843 | 60.1% |
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
| 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-af4f456eadba4a52a495a7bd0bf6a21c |
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| Source note | uspto-grants-2005_09 |
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