HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 68927469, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Acetaminophen | HCID 1983 | — |
| Reactant | HCID 10858041 | HCID 10858041 | — |
| Solvent | Acetone | HCID 180 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 68927469 | HCID 68927469 | 70.1% |
Reaction Steps
To a solution of paracetamol (2.56 g, 16.92 mmoles) in pyridine (20 ml) cooled in an ice bath trans-3-[4-acetyloxy-3-methoxyphenyl]-2-propenoyl chloride (4.31 g, 16.92 mmoles) dissolved in acetone (45 ml) is dropped. The mixture is maintained under stirring in ice for 3 hours then it is poured into water (300 ml) and the precipitate is filtered and triturated with hexane to give trans-3-[4-acetyloxy-3-methoxyphenyl]-2-propenoic acid 4-(acetylamino)phenyl ester (4.38 g) as an orange solid. M.p. 246-250° C. Yield 70%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07465803B2 |
| Source dataset | uspto-grants-2008_12 |
| ORD ID | ord-c0743e7df7c24b2db260f0a607976712 |
| Source note | uspto-grants-2008_12 |