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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1-(4-Bromo-2-fluorophenyl)ethan-1-oneHCID 21938581—
ProductHCID 178434209HCID 17843420993.6%

Reaction Conditions

Temperature120 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-860bffac4d7c44fe8ac6c0a62a398aac
Source noteuspto-grants-2014_04