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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57447Generated: October 29, 2026

Hydrochloric Acid → (S)-1-(2,5-difluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl)ethanamine

https://huagongshe.com/reaction/57447

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(R)-N-((S)-1-(2,5-difluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamideHCID 90415656—
SolventMethanolHCID 887—
Product(S)-1-(2,5-difluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl)ethanamineHCID 9041466395%

Reaction Steps

To a solution of (R)—N—((S)-1-(2,5-difluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamide (500 mg) in MeOH (10 mL) was added dropwise HCl (732 μl, 2.93 mmol). The reaction was stirred at room temperature for 30 minutes. LCMS indicated complete conversion to product. The reaction mixture was concentrated and DCM (20 mL) and saturated NaHCO3 solution (10 mL) was added to the residue. The mixture was stirred for 10 minutes and phases were separated. Aqueous layer was then extracted with DCM (2×10 mL), and the combined organic was dried (Na2SO4) and concentrated to give (S)-1-(2,5-difluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl)ethanamine (330 mg). LCMS (B) m/z 238.1 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434719B2
Source datasetuspto-grants-2016_09
ORD IDord-f66c269fb16e469380d484f124d0f509
Source noteuspto-grants-2016_09