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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629508Generated: October 29, 2026

Carbamic acid, N-(3-bromo-5-chloro-2-fluorophenyl)-, 1,1-dimethylethyl ester → 3-Bromo-5-chloro-2-fluorobenzenamine

https://huagongshe.com/reaction/629508

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbamic acid, N-(3-bromo-5-chloro-2-fluorophenyl)-, 1,1-dimethylethyl esterHCID 51034463—
SolventTrifluoroacetic acid methylene chlorideHCID 21863450—
Product3-Bromo-5-chloro-2-fluorobenzenamineHCID 51034225117.9%

Reaction Steps

A solution of tert-butyl 3-bromo-5-chloro-2-fluorophenylcarbamate (900 mg, 2.78 mmol) in DCM/TFA (1:1, 20 mL) was stirred at rt for 1 h. The reaction mixture was concentrated, then the residue was taken up in ethyl acetate and washed with aqueous sodium bicarbonate and brine. The organic layer was dried over sodium sulfate, filtered, and concentrated to provide the crude title compound (736 mg). MS m/z 223.9 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09314464B2
Source datasetuspto-grants-2016_04
ORD IDord-7beb5bf129ce49069191e4f6e5b83498
Source noteuspto-grants-2016_04