Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetyl chloride | HCID 6367 | — |
| Reactant | Aluminum(III) Chloride | HCID 6451240 | — |
| Reactant | HCID 11746630 | HCID 11746630 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 11140416 | HCID 11140416 | 49% |
Reaction Steps
Under stirring and cooling with ice, acetyl chloride (1.00 mL, 14.1 mmol) wad added dropwise to a suspension of aluminum chloride (III) (1.78 g, 13.3 mmol) in dichloromethane (30 mL), and then the mixture was stirred for 30 minutes. Next, a solution of ethyl 2-ethyl-3-(4-methoxyphenyl)propanoate (2.10 g, 8.89 mmol) in dichloromethane (10 mL) was added dropwise. After stirring for 1 hour under cooling with ice, the mixture was allowed to stand overnight at room temperature. The reaction mixture was poured in ice water, the dichloro-methane layer was separated. and the aqueous layer was extracted with dichloromethane. The organic layers were combined and washed with water and brine, dried over anhydrous sodium sulfate, and then concentrated. The residue was purified by silica gel column chromatography (eluent n-hexane:ethyl acetate=6:1 v/v) to afford 1.21 g (49%) of the title compound as a yellow oily product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07049342B2 |
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| Source dataset | uspto-grants-2006_05 |
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| ORD ID | ord-a6a5f078cb89485c9c756c076738a53d |
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| Source note | uspto-grants-2006_05 |
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