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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 338972Generated: October 29, 2026

Ammonium Hydroxide → HCID 70983878, compound

https://huagongshe.com/reaction/338972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
ReactantCrotonaldehydeHCID 447466—
Reactant3-Bromo-4-fluoroanilineHCID 2779286—
SolventHydrochloric AcidHCID 313—
ProductHCID 70983878HCID 7098387825.8%

Reaction Conditions

Temperature106 °C

Reaction Steps

To a solution of 3-bromo-4-fluoroaniline (10.00 g, 52.63 mmol) in 6N HCl (150 mL) was added (E)-but-2-enal (7.524 mL, 92.10 mmol) dropwise over 10 minutes at 106° C. The reaction was stirred at 106° C. for 2 hours. After cooling to ambient temperature, the reaction mixture was basified with ammonium hydroxide to about pH 12, extracted with DCM (2×100 mL), dried (sodium sulfate), filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (hexane/ethyl acetate 5:1) to give 7-bromo-6-fluoro-2-methylquinoline (3.26 g, 25.8%) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889704B2
Source datasetuspto-grants-2014_11
ORD IDord-4abe69c73301442cabd2ba0972c5aaca
Source noteuspto-grants-2014_11