HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium → 2-(4-Hydroxy-5-methoxy-2-methyl-phenoxy)-2-methyl-propionic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium | HCID 5360545 | — |
| Reactant | 2-(4-Acetoxy-5-methoxy-2-methyl-phenoxy)-2-methyl-propionic acid ethyl ester | HCID 67402499 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2-(4-Hydroxy-5-methoxy-2-methyl-phenoxy)-2-methyl-propionic acid methyl ester | HCID 67403231 | 76% |
Reaction Steps
A freshly prepared solution of 91 mg (4 mmol) sodium in 5.4 ml methanol was added within 5 min to an ice cooled solution of 235 mg (0.8 mmol) 2-(4-acetoxy-5-methoxy-2-methyl-phenoxy)-2-methyl-propionic acid ethyl ester in 5.4 ml methanol. The solution was naturally warmed to ambient temperature and after 5 h the solvent was removed under reduced pressure. Ice water/1 M HCl 1/1 was added and the mixture was extracted two times with dichloromethane. The combined extracts were dried over sodium sulfate and the solvent was removed under reduced pressure to yield 153 mg (0.6 mmol, 76%) of the title compound as brown oil which was used in the next step without further purification.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07253192B2 |
| Source dataset | uspto-grants-2007_08 |
| ORD ID | ord-e5d21fe6fc154c638f37accc94c06c83 |
| Source note | uspto-grants-2007_08 |