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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 405801Generated: October 30, 2026

5-Bromo-4-fluoro-2-methylaniline → 5-Amino-2-fluoro-4-methylbenzonitrile

https://huagongshe.com/reaction/405801

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-4-fluoro-2-methylanilineHCID 2782786—
ReactantHCID 178418546HCID 178418546—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product5-Amino-2-fluoro-4-methylbenzonitrileHCID 8667744936%

Reaction Conditions

Temperature195 °C

Reaction Steps

A mixture of 5-bromo-4-fluoro-2-methylaniline (2.04 g, 10.0 mmol), CuCN (889 mg, 10.0 mmol) and CuI (1.9 g, 10.0 mmol) in NMP was purged with N2 for 5 minutes and then sealed and heated at 195° C. for 30 minutes under microwave condition. The mixture was subjected to standard aqueous workup to give a residue which was purified by silica chromatography to yield 5-amino-2-fluoro-4-methylbenzonitrile (51) (540 mg, 36% yield). MS m/z 151.0 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08754071B2
Source datasetuspto-grants-2014_06
ORD IDord-b2064c9d8a294fa5b052e6e3f4e86f91
Source noteuspto-grants-2014_06