Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 2-Pyrrolidone | HCID 12025 | — |
| Reactant | 2-Chloro-5-nitropyridine | HCID 78308 | — |
| Reactant | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 68028001 | HCID 68028001 | 99.9% |
Reaction Steps
Pyrrolidin-2-one (129 mg), cesium carbonate (412 mg), Pd2(dba)3 (116 mg), and Xantphos (146 mg) were added to a 1,4-dioxane (10 ml) solution containing 2-chloro-5-nitropyridine (200 mg) in a nitrogen atmosphere, followed by stirring at 100° C. for 5 hour. Water was added to the reaction solution, followed by extraction with ethyl acetate. The resultant was washed with saturated saline and dried over anhydrous sodium sulfate. Subsequently, the solvent was distilled away under reduced pressure, the obtained residue was purified by silica gel chromatography (n-hexane:ethyl acetate=4:1 to 2:1), and a light red solid of 1-(5-nitropyridin-2-yl)pyrrolidin-2-one (261 mg) was thus obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08772320B2 |
|---|
| Source dataset | uspto-grants-2014_07 |
|---|
| ORD ID | ord-8884dcca97204f9b839c7aef33bf9669 |
|---|
| Source note | uspto-grants-2014_07 |
|---|
