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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751184Generated: October 28, 2026

Acetic Acid → HCID 58312892, compound

https://huagongshe.com/reaction/1751184

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantThiazolidinedioneHCID 5437—
ReactantPiperidineHCID 8082—
Reactant6-Bromopyridine-2-carbaldehydeHCID 2757009—
SolventTolueneHCID 1140—
ProductHCID 58312892HCID 5831289260.1%

Reaction Conditions

Temperature125 °C

Reaction Steps

A 40 mL round-bottomed vial was charged with thiazolidine-2,4-dione (300 mg, 2.56 mmol, 1 equiv.) and 6-bromopicolinaldehyde (477 mg, 2.56 mmol, 1 equiv.). Toluene (5 mL, 0.5 M), glacial acetic acid (22 μL, 0.38 mmol, 0.15 equiv.), and piperidine (25 μL, 0.25 mmol, 0.1 equiv.) were added and the vial was purged with argon. The mixture was shaken for 16 h at 125° C. The resulting solid was collected by filtration and then washed with acetone (3×5 mL). The solid was dried under reduced pressure to provide (Z)-5-((6-bromopyridin-2-yl)methylene)thiazolidine-2,4-dione (439 mg, 731 mg theoretical, 60%). LC-MS m/z: 286 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09157077B2
Source datasetuspto-grants-2015_10
ORD IDord-0ab5281e96f144958374a9ee824b3976
Source noteuspto-grants-2015_10