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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 625938Generated: October 30, 2026

Sodium Bicarbonate → 3-(Benzyloxy)-5-bromo-1-(difluoromethyl)pyridin-2(1H)-one

https://huagongshe.com/reaction/625938

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
Reactant2,2-Difluoro-2-(fluorosulfonyl)acetic acidHCID 2737516—
Reactant3-(Benzyloxy)-5-bromo-2-chloropyridineHCID 22607532—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
Product3-(Benzyloxy)-5-bromo-1-(difluoromethyl)pyridin-2(1H)-oneHCID 6741959534.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

3-(Benzyloxy)-5-bromo-2-chloropyridine (100 mg, 0.335 mmol), 2-(fluorosulfonyl)difluoroacetic acid (179 mg, 1.005 mmol), and NaHCO3 (30 mg, 0.357 mmol) were combined in CH3CN (2 mL) then heated to 50° C. After heating overnight the mixture was cooled to RT and diluted with EtOAc. The resulting mixture was filtered through a pad of Celite® and concentrated. Flash column (Biotage-SNAP-10 g, 0-10% EtOAc/hexanes) gave the title compound (38 mg, 34%) as a white solid. 1H NMR (500 MHz, CDCl3): δ 7.69 (t, J=60.06 Hz, 1 H); 7.42-7.35 (m, 5 H); 7.22 (d, J=2.2 Hz, 1 H); 6.68 (d, J=2.3 Hz, 1 H); 5.10 (s, 2 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309199B2
Source datasetuspto-grants-2016_04
ORD IDord-60031fd82e1644efb840e15d00246b77
Source noteuspto-grants-2016_04