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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944434Generated: November 2, 2026

Dimethyl Sulfoxide → 3-(Pyridine-3-sulfonyl)thiophene-2-carbaldehyde

https://huagongshe.com/reaction/1944434

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
Reactant3-Chlorothiophene-2-carbaldehydeHCID 2735825—
ReactantSodium pyridine-3-sulfinateHCID 23697071—
SolventWaterHCID 962—
Product3-(Pyridine-3-sulfonyl)thiophene-2-carbaldehydeHCID 8665219328.6%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 3-chlorothiophene-2-carbaldehyde (0.16 g), pyridine-3-sulfinic acid sodium salt (0.30 g) and dimethyl sulfoxide (2.0 mL) was heated at 80° C. for 3 hours and then at 90° C. for 3 hours. The mixture was diluted with water, extracted with ethyl acetate and the combined organic extract was dried over magnesium sulfate. The solvent was removed under reduced pressure to afford the title compound as a grey solid (0.079 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394836B2
Source datasetuspto-grants-2013_03
ORD IDord-0017927d9ad14a2eb52085da64a7ee85
Source noteuspto-grants-2013_03