Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 3-Mercaptopropionic Acid | HCID 6514 | — |
| Reactant | HCID 2653166 | HCID 2653166 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 15980918 | HCID 15980918 | 66.3% |
Reaction Steps
To a solution of 6-chloro-N-(4-fluoro-phenyl)-nicotinamide (0.20 g, 0.80 mmol) in 10 mL of DMF was added 3-mercaptopropionic acid (0.10 mL, 1.2 mmol) and potassium tert-butoxide (0.31 g, 2.8 mmol) and the mixture heated to 60° C. After 9 h the reaction mixture was poured into ice water, HCl (1 M, aq) added to adjust to pH 6, and the solids removed via filtration. The filtrate was then taken to pH 10 with NaOH (4M, aq) and extracted with ethyl acetate. HCl (6M, aq) was then added to the filtrate to adjust the pH to 4 and extracted with ethyl acetate, dried over sodium sulfate, and the solvents removed in vacuo to yield a white solid. Purification by recrystallization using ethyl acetate gave 0.17 g (66%) of the titled product as a white solid; MS (EI) m/z 319.20 (M−H)−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06777432B1 |
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| Source dataset | uspto-grants-2004_08 |
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| ORD ID | ord-c04f0eb0c2494affa1d92c47babbf7b3 |
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| Source note | uspto-grants-2004_08 |
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