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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 333854Generated: November 2, 2026

Hydrochloric Acid → 5-[2-(2-Chloro-4-methoxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-1H-pyridin-2-one

https://huagongshe.com/reaction/333854

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
Reactant3-(2-Chloro-4-methoxy-phenyl)-1,1,1-trifluoro-2-(6-methoxy-pyridin-3-yl)-butan-2-olHCID 57421311—
Solvent1,4-DioxaneHCID 31275—
Product5-[2-(2-Chloro-4-methoxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-1H-pyridin-2-oneHCID 57421312101.4%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 3-(2-chloro-4-methoxy-phenyl)-1,1,1-trifluoro-2-(6-methoxy-pyridin-3-yl)-butan-2-ol (Example 193, 212 mg) in dioxane (8.5 ml) was added concentrated aqueous HCl (0.934 ml). The mixture was stirred at 100° C. for 1 h. After cooling to room temperature, EtOAc and water were added and the mixture was extracted with EtOAc. The organic phase was dried (MgSO4), filtered and concentrated to dryness to give the title compound (207 mg) as a colorless solid. MS (m/e, ISP neg. ion)=360.0 [M−H+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883786B2
Source datasetuspto-grants-2014_11
ORD IDord-d0efef3ab18842f98c53c8d49e95c57f
Source noteuspto-grants-2014_11