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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1399825Generated: November 3, 2026

4-Bromobenzene-1,2-diamine → HCID 178419336, compound

https://huagongshe.com/reaction/1399825

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromobenzene-1,2-diamineHCID 323593—
ReactantSodium NitriteHCID 23668193—
SolventAcetic acid--water (1/1)HCID 21899381—
ProductHCID 178419336HCID 178419336137.7%

Reaction Steps

The mixture of 4-bromobenzene-1,2-diamine (200 mg, 1.1 mmol) and NaNO2 (569 mg, 5.3 mmol) in H2O/AcOH (5 mL/50 mL) was reacted at 80° C. for 6 hours. The mixture was concentrated, the residue was dissolved in DCM and extracted with water, and the organic phase dried by Na2SO4 and concentrated to give 300 mg of crude product which was used without further purification. LCMS (m/z): 198.1/199.1 [M+H]+/[M+2H]+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906900B2
Source datasetuspto-grants-2014_12
ORD IDord-1a1b377a90434a978991e316430c721b
Source noteuspto-grants-2014_12