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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1972220Generated: November 1, 2026

Hydrogen Bromide → HCID 59485630, compound

https://huagongshe.com/reaction/1972220

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPhenolHCID 996—
ReactantHCID 59485820HCID 59485820—
SolventAcetic AcidHCID 176—
ProductHCID 59485630HCID 5948563049.3%

Reaction Steps

A solution of N-(2-(4-(4-chlorophenoxy)phenylamino)-2-(3-(trifluoromethyl)phenyl)ethyl)-4-methylbenzenesulfonamide (358 mg, 0.638 mmol) and phenol (180 mg, 1.92 mmol) in 30 wt % HBr in acetic acid (3.5 mL) is heated at 80° C. for 2 h. After cooling down to room temperature, most of the solvent is removed under vacuo. The residue is then quenched with cold saturated NaHCO3 aqueous solution (40 mL) and extracted with EtOAc (3×20 mL). The combined organic layer is concentrated and purified by reverse phase HPLC to provide N1-(4-(4-chlorophenoxy)phenyl)-1-(3-(trifluoromethyl)phenyl)ethane-1,2-diamine (128 mg, 49% yield) as a light yellow oil-like product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431607B2
Source datasetuspto-grants-2013_04
ORD IDord-cc2e6cb801f44a05903de912b1b327ec
Source noteuspto-grants-2013_04