Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Methylbenzenethiol | HCID 7811 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Chloro-4-(4-chlorophenyl)-5-oxazolepropionic acid | HCID 11808258 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 54555785 | HCID 54555785 | 93% |
Reaction Steps
A mixture of 2-chloro-4-(4-chlorophenyl)-5-oxazolepropionic acid (1.43 g), 4-methylthiophenol (0.68 g), potassium carbonate (2.07 g) and N,N-dimethylformamide (20 ml) was stirred under a nitrogen atmosphere at 100° C. for 40 minutes. Water was added to the reaction mixture, which was then acidified with 2 N hydrochloric acid. The crystals thus precipitated were collected by filtration to obtain 4-(4-chlorophenyl)-2-(4-methylphenylthio)-5-oxazolepropionic acid (1.73 g, 93%). This was recrystallized from ethanol to give colorless needles. mp 160-161° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06498179B1 |
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| Source dataset | uspto-grants-2002_12 |
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| ORD ID | ord-ed1b5f6bd2754bb78a514eb676379b16 |
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| Source note | uspto-grants-2002_12 |
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