HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 53985717, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | (3S)-3-hydroxypyrrolidin-2-one | HCID 11029774 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 53985717 | HCID 53985717 | 86.3% |
Reaction Steps
To a solution of 1.439 g of (S)-(-)-3-hydroxy-2-pyrrolidinone [P. W. K. Woo, Tetrahedron Letters, 2617 (1971); mp. 103.5°-104.5° C., [α]D26 =-118.8°±2.3° (c=0.688, CHCl3)] in 14 ml of pyridine is added 2.8 ml of acetic anhydride, and the mixture is allowed to stand at room temperature for 4 hours and concentrated under reduced pressure at a temperature below 40° C. The residue is crystallized from ether and recrystallized from methylene chloride-n-hexane to give 1.735 g of (S)-(-)-3-acetoxy-2-pyrrolidinone in 86.3% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04248865 |
| Source dataset | uspto-grants-1981_02 |
| ORD ID | ord-50edda6ea42b4d1287d33f6d716b1679 |
| Source note | uspto-grants-1981_02 |