HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 456632Generated: October 30, 2026
Hydrazine hydrate (1:1) → HCID 178469891, compound
https://huagongshe.com/reaction/456632
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | ethyl 5-(2-chloronicotinoyl)-1H-pyrrole-3-carboxylate | HCID 86592241 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178469891 | HCID 178469891 | — |
Reaction Steps
A mixture of 5-(2-chloro-pyridine-3-carbonyl)-1H-pyrrole-3-carboxylic acid ethyl ester (1.2 g, 4.32 mmol) and hydrazine hydrate (6.27 mL) in ethanol (50 mL) was heated at 80° C. for 24 hours. The reaction was concentrated and the residue was neutralized to pH 7 with 1N HCl, extracted with ethyl acetate. The combined ethyl acetate was dried, concentrated and purified on a silica gel column to give the titled compound as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07186716B2 |
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| Source dataset | uspto-grants-2007_03 |
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| ORD ID | ord-cf11c95bd4e749a0aaf8dee585cee705 |
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| Source note | uspto-grants-2007_03 |
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