Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Thiazolidinedione | HCID 5437 | — |
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | 6-Bromopyridine-2-carbaldehyde | HCID 2757009 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 58312892 | HCID 58312892 | 60.1% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09157077B2 |
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| Source dataset | uspto-grants-2015_10 |
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| ORD ID | ord-0ab5281e96f144958374a9ee824b3976 |
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| Source note | uspto-grants-2015_10 |
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