HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367304Generated: November 1, 2026
Hydrazine hydrate (1:1) → HCID 178434209, compound
https://huagongshe.com/reaction/2367304
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | 1-(4-Bromo-2-fluorophenyl)ethan-1-one | HCID 21938581 | — |
| Product | HCID 178434209 | HCID 178434209 | 93.6% |
Reaction Steps
A suspension of 1-(4-bromo-2-fluorophenyl)ethanone (8.33 g, 38.4 mmol) in 15 mL of hydrazine monohydrate (309 mmol, 8 equiv) was heated to 120° C. under a reflux condenser for 23 hours. The resulting suspension (after cooling to room temperature) was filtered. The white solids were washed with water (2×15 mL), sucked under house vacuum at room temperature for 24 hours, and then dried under vacuum at room temperature over P2O5 for 24 hours to afford the title compound (7.59 g) as a yellow solid. LC-MS (ES) m/z=211, 213 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08697685B2 |
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| Source dataset | uspto-grants-2014_04 |
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| ORD ID | ord-860bffac4d7c44fe8ac6c0a62a398aac |
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| Source note | uspto-grants-2014_04 |
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