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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 452467Generated: October 29, 2026

Ethyl Acetate → 3-Fluoro-2-(hydroxymethyl)-5-(methylsulfonyl)phenol

https://huagongshe.com/reaction/452467

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantLithium borohydrideHCID 4148881—
ReactantMethyl 2-fluoro-6-hydroxy-4-(methylsulfonyl)benzoateHCID 66887484—
SolventTetrahydrofuranHCID 8028—
Product3-Fluoro-2-(hydroxymethyl)-5-(methylsulfonyl)phenolHCID 6688751695.6%

Reaction Steps

Methyl 2-fluoro-6-hydroxy-4-(methylsulfonyl)benzoate (0.14 g, 0.57 mmol) was dissolved in THF (dry) (5 ml). LiBH4 (2M in THF) (0.57 ml, 1.14 mmol) was added dropwise under nitrogen at 0° C. The mixture was allowed to warm to RT and stirred under nitrogen for 45 min. EtOAc was added and the mixture was further quenched with MeOH, then water. The mixture was acidified with 1N HCl and extracted with EtOAc. The combined extracts were washed with brine, dried (Na2SO4) and concentrated to give the crude title compound (0.12 g) 1H-NMR (400 MHz, CD3OD): δ 7.20 (1H, s), 7.16 (1H, dd, J 8.4, 2), δ 4.73 (2H, d, J 1.6), δ 3.10 (3H, s) ppm (J-values are in Hz and shifts relative to solvent-peak at 3.31 ppm).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08492372B2
Source datasetuspto-grants-2013_07
ORD IDord-6ee9932b9cff4c48ae2eea209764fc2e
Source noteuspto-grants-2013_07