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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 533522Generated: October 30, 2026

Hydrochloric Acid → 4-(3-Fluorobiphenyl-4-yl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

https://huagongshe.com/reaction/533522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium CarbonateHCID 10340—
ReactantPhenylboronic AcidHCID 66827—
Reactant(+/-)-4-(4-Bromophenyl)-2-methyl-2-(methylsulfonyl)butanoic acidHCID 66577906—
Reactant4-(4-Bromo-2-fluorophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamideHCID 86668757—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
Product4-(3-Fluorobiphenyl-4-yl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamideHCID 86668758—

Reaction Steps

4-(4-Bromo-2-fluorophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (250 mg, 0.558 mmol), phenyl boronic acid (91 mg, 0.747 mmol), sodium carbonate (216 mg, 2.04 mmol), and Pd (II) EnCat (144 mg, 0.056 mmol, 0.39 mmol/g loading) were combined in a 2-5 mL microwave vial followed by the addition of 2 mL of dioxane, and 2 mL of water. The reaction was irradiated in a microwave at 120° C. for 40 minutes, followed by neutralization through the addition of 5 mL of 4 N HCl in water and extracted with ethyl acetate (3×15 mL). The organics were combined, dried over magnesium sulfate, filtered and concentrated in vacuo to afford the title compound as a crude brown solid (206.7 mg, 67%). LC-MS m/z 448.3 (M−1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853258B2
Source datasetuspto-grants-2014_10
ORD IDord-fedd5c43c65d4036bcb438643d8cd5a9
Source noteuspto-grants-2014_10