Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Thiazolidinedione | HCID 5437 | — |
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | 4-[2-Hydroxy-2-(2-methoxyphenyl)ethoxy]benzaldehyde | HCID 86645077 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 25230336 | HCID 25230336 | 80.2% |
Reaction Steps
To a stirring solution of 4-[2-hydroxy-2-(2-methoxyphenyl)ethoxy]benzaldehyde (1.71 g, 6.28 mmol) in absolute EtOH (50 ml) was added 2,4-thiazolidinedione (0.81 g, 6.91 mmol) and piperidine (0.68 mL, 6.9 mmol), and the resulting solution was heated to reflux. The reaction was refluxed overnight and then evaporated in vacuo. The residue was dissolved in EtOAc and this solution was washed with aqueous HOAc (pH 5-6), brine, dried (Na2SO4), filtered and evaporated in vacuo. The residue was adsorbed onto silica gel and chromatographed on silica gel eluting with 20-40% EtOAc/DCM. Fractions containing product were combined and evaporated in vacuo to give 1.87 g (80%) of the title compound as a light yellow solid. MS (ESI−) for C19H17NO5S m/z 370.1 (M−H)−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08304441B2 |
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| Source dataset | uspto-grants-2012_11 |
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| ORD ID | ord-a37800e335bb4b43b196358810c5ca01 |
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| Source note | uspto-grants-2012_11 |
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