Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Thionyl Chloride | HCID 24386 | — |
| Reactant | 2-Oxo-1-phenylpyrrolidine-3-carboxylic acid | HCID 3043762 | — |
| Product | HCID 86700963 | HCID 86700963 | 79% |
Reaction Steps
Thionyl chloride is added at 0° C. (5.8 g) to a solution of 2-oxo-1-phenylpyrrolidine-3-carboxylic acid (5 g) in ethanol, and the batch is stirred at 80° C. for 4 h. When the reaction is complete, the batch is concentrated in vacuo, the residue is taken up in water and extracted with ethyl acetate. The organic phase is washed with saturated sodium bicarbonate solution and saturated sodium chloride solution and dried over sodium sulfate, giving ethyl 2-oxo-1-phenylpyrrolidine-3-carboxylate (4.5 g, 79%);
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08895535B2 |
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| Source dataset | uspto-grants-2014_11 |
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| ORD ID | ord-0bb585ce4b9e4890bac05b1936a9b8a1 |
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| Source note | uspto-grants-2014_11 |
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