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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 478177Generated: October 26, 2026

Methyl iodide → Thiophene-3-carbonitrile, 5-acetyl-4-(4-chlorophenyl)-2-methylthio-

https://huagongshe.com/reaction/478177

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantCarbon DisulfideHCID 6348—
ReactantChloroacetoneHCID 6571—
ReactantPotassium CarbonateHCID 11430—
Reactant4-ChlorobenzoylacetonitrileHCID 138308—
SolventDimethylformamideHCID 6228—
ProductThiophene-3-carbonitrile, 5-acetyl-4-(4-chlorophenyl)-2-methylthio-HCID 627943—

Reaction Steps

3-(4-chloro-phenyl)-3-oxo-propionitrile (5 mmol) was added to a suspension of K2CO3 (3 equivalents, 15 mmol) in DMF (4.5 mL) and allowed to stir at room temperature. After 10 minutes, CS2 (1.25 equivalents, 7.5 mmol) was added in one portion and the resulting mixture stirred at room temperature for an additional 10 minutes then a solution of 1-chloro-propan-2-one (1.0 equivalent, 5 mmol) in DMF (5 mL) was added. After 1 hour, a solution of MeI (1.1 equivalents, 5.5 mmol) in DMF (2 mL) was added in a dropwise fashion then, after 30 minutes, the mixture was poured onto water and the resulting mixture was stirred vigorously for 12-16 hours to afford a suspension of the desired product. The crude product was isolated by filtration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06642227B2
Source datasetuspto-grants-2003_11
ORD IDord-c1c567d9aefe4d589a3edf3b5dbf3d54
Source noteuspto-grants-2003_11