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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 607354Generated: October 30, 2026

Potassium Carbonate → (S)-5-ethynyl-N-[methyl(oxo)phenyl-lambda6-sulfanylidene]nicotinamide

https://huagongshe.com/reaction/607354

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant(S)-N-[methyl(oxo)phenyl-lambda6-sulfanylidene]-5-[(trimethylsilyl)ethynyl]nicotinamideHCID 24953135—
SolventMeOH tetrahydrofuranHCID 21899815—
Product(S)-5-ethynyl-N-[methyl(oxo)phenyl-lambda6-sulfanylidene]nicotinamideHCID 24953136—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of (S)-N-[methyl(oxo)phenyl-λ6-sulfanylidene]-5-[(trimethylsilyl)ethynyl]nicotinamide (806 mg, 2.3 mmol) in 70 mL THF/methanol (1:1 ratio) at room temperature was degassed with argon. The solution was cooled to 0° C. and K2CO3 (937 mg, 6.8 mmol) added. After 5 minutes the solution was decanted from the solids and partitioned between EtOAc and H2O. The EtOAc layer was washed with brine, dried with anhydrous Na2SO4 and concentrated. The brown oil was purified by chromatography (silica gel, CHCl3/EtOAc) to the title compound as a thick pale orange oil (630 mg, 98%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07915443B2
Source datasetuspto-grants-2011_03
ORD IDord-beac644b0692449d864457dab277125b
Source noteuspto-grants-2011_03