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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1424821Generated: October 29, 2026

Hydrogen Bromide → HCID 131732282, compound

https://huagongshe.com/reaction/1424821

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 131732281HCID 131732281—
Catalystcopper(I) bromideHCID 24593—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
ProductHCID 131732282HCID 13173228273%

Reaction Conditions

Temperature0 °C

Reaction Steps

Sodium nitrite (0.18 g, 2.55 mmol) was added to a 0° C. solution of 6-(N-(4-amino-3-(trifluoromethyl)phenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide (1.3 g, 2.32 mmol) in acetonitrile (14 ml) and aq HBr (48%) (14 mL). The reaction mixture was stirred for 30 min at 0° C. and copper (I) bromide (0.40 g, 2.78 mmol) was added. The reaction mixture was stirred at 60° C. for 1 h and diluted with EtOAc and water. The organic layer was washed with brine, dried (Na2SO4), filtered, evaporated and purified by silica gel chromatography (0-50% EtOAc/hexanes) to afford the title compound (1.06 g, 73%) as a white foam. LCMS (m/z, ES+)=625.2, 627.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08927593B2
Source datasetuspto-grants-2015_01
ORD IDord-4d7377a8573843b09e1095c81d10467f
Source noteuspto-grants-2015_01