HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 13000823, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 4-Methoxybenzaldehyde | HCID 31244 | — |
| Product | HCID 13000823 | HCID 13000823 | — |
Reaction Steps
Progress of the reaction is monitored by thin layer chromatography (Silica gel plates, eluent methylene chloride; visualization by dipping in a solution of 5% anisaldehyde in ethanol and heating). When the reaction is complete as judged by thin layer chromatography, the reaction mixture is adjusted to a pH of 13 with 10 M sodium hydroxide and then extracted 3 times with 250 ml of methylene chloride. The pH of the aqueous mixture is then adjusted to 3 with concentrated HCl, followed by continuous extraction with 1 liter of ethyl acetate for 24 hours. The ethyl acetate extract is dried over anhydrous magnesium sulfate and evaporated under reduced pressure to yield (R)-2-phenylbutyrolactone as a yellowish solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06207862B1 |
| Source dataset | uspto-grants-2001_03 |
| ORD ID | ord-1a3bf6a9740d4f098b693681378c179d |
| Source note | uspto-grants-2001_03 |