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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249960Generated: October 30, 2026

Bromine → HCID 57423043, compound

https://huagongshe.com/reaction/249960

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantSodium ThiosulfateHCID 24477—
Reactant2-Amino-4-nitrobenzonitrileHCID 11147897—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 57423043HCID 5742304336%

Reaction Conditions

Temperature60 °C

Reaction Steps

2-Amino-4-nitrobenzonitrile (1.6 g, 9.81 mmol) is presented as an initial charge in 30 mL of dioxane and is mixed at 10° C. with bromine (0.56 mL, 11 mmol). This is followed by stirring at 60° C. for 6 hours. After cooling to room temperature, the batch is added to dilute sodium thiosulphate solution. After extraction of dichloromethane, the combined organic phases are dried over sodium sulphate to leave, after removal of the solvent and chromatographic purification (silica gel, n-hexane/ethyl acetate: 0→100% ethyl acetate), the product in 36% yield (820 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863283B2
Source datasetuspto-grants-2011_01
ORD IDord-b9a5937cd98e47a68b97f74cd27c51cb
Source noteuspto-grants-2011_01