HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1748432Generated: October 30, 2026
Hydrazine hydrate (1:1) → 3,5-Dichloro-2-hydrazinylpyridine
https://huagongshe.com/reaction/1748432
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Pyridine, 2,3,5-trichloro- | HCID 27666 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 3,5-Dichloro-2-hydrazinylpyridine | HCID 600966 | 98.7% |
Reaction Steps
2,3,5-Trichloropyridine (25 g) and hydrazine monohydrate (109.8 g) were added to ethanol (20 ml), stirred at 100° C. and left to stand at room temperature. The precipitated solid was collected by filtration to give 3,5-dichloropyridin-2-ylhydrazine (24.07 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09150555B2 |
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| Source dataset | uspto-grants-2015_10 |
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| ORD ID | ord-db4ed7d204624588bd7b598714824623 |
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| Source note | uspto-grants-2015_10 |
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