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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 474188Generated: October 29, 2026

Water → HCID 44218926, compound

https://huagongshe.com/reaction/474188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(Bromomethyl)-4-chlorobenzeneHCID 69329—
ReactantHCID 178456399HCID 178456399—
SolventTetrahydrofuranHCID 8028—
ProductHCID 44218926HCID 4421892688%

Reaction Steps

500 mg (2.30 mM) of 3-mercapto-1-propylpyrazin-2(1H)-one, 319.2 μl (1.21 mM) of 4-chlorobenzylbromide and 637 mg (4.6 mM) of potassium carbonate in 4 ml of tetrahydrofurane were stirred overnight at room temperature. Water was added and the aqueous layer was extracted with ethyle acetate. The organic layer was separated and washed with water, dried on anhydrous sodium sulfate and evaporated under vacuum, to give an oil which was purified by silica gel column chromatography, using dichloromethane/dimethylketone (98/2) as eluant, to give 600 mg of 3-[(4-chlorobenzyl)thio]-1-propylpyrazin-2(1H)-one. Yield: 88%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637522B2
Source datasetuspto-grants-2014_01
ORD IDord-c99ffe9657bc4ad7a591f8f1dc6ddfc1
Source noteuspto-grants-2014_01