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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367371Generated: November 1, 2026

Hydrazine → HCID 58504781, compound

https://huagongshe.com/reaction/2367371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Bromo-2,6-difluorobenzonitrileHCID 2756916—
SolventEthanolHCID 702—
ProductHCID 58504781HCID 58504781410.7%

Reaction Conditions

Temperature150 °C

Reaction Steps

Five batches of the below reaction were run in sequence in a microwave reactor: To a 5-mL microwave vial was added 4-bromo-2,6-difluorobenzonitrile (3 g, 13.76 mmol), hydrazine (0.864 mL, 27.5 mmol), Hunig's base (4.81 mL, 27.5 mmol) and ethanol (10 mL). The vial was capped and stirred for 10 minutes at 150° C. in a microwave reactor. The reaction mixture was cooled (ice-water bath) and a yellow precipitate formed. The yellow precipitates were collected, combined and the solids were washed with cold ethanol to yield pale yellow rods of the title compound (13.0 g). LC-MS (ES) m/z=230 and 232 (1:1 intensity) [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-831549215c384c47b1dfecc80ddc3762
Source noteuspto-grants-2014_04