HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,2-Dichloroethane → (3S)-3-hydroxy-3-phenylpropanenitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | Potassium Cyanide | HCID 9032 | — |
| Reactant | (+)-Styrene oxide | HCID 114705 | — |
| Catalyst | Tetrabutylammonium Bromide | HCID 74236 | — |
| Solvent | Potassium Hydroxide | HCID 14797 | — |
| Product | (3S)-3-hydroxy-3-phenylpropanenitrile | HCID 11084031 | 33.6% |
Reaction Steps
To a 250 round bottom flask were sequentially added 10.0 g of (R)-styrene oxide, 40 ml of 1,2-dichloroethane, 40 ml of 1N potassium hydroxide, 5.96 g of potassium cyanide and 267 mg of tetrabutylammonium bromide. The resulting mixture was heated at reflux for 6 hours. The reaction mixture was cooled and diluted with 1N potassium hydroxide, and extracted with diethyl ether. The ether extracts were combined and washed twice with a saturated sodium chloride solution. The organics layer was dried over magnesium sulfate and concentrated in vacuo. The resulting yellow oil was vacuum distilled at 13 mm pressure and the distillate collected at 140°-180° C. providing 4.11 g of title intermediate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05136079 |
| Source dataset | uspto-grants-1992_08 |
| ORD ID | ord-4fef408e975942a0bf95876d60ab7f67 |
| Source note | uspto-grants-1992_08 |