HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Pyrrolidone → 1-[2-[4-(3,5-Dimethylpyridin-2-yl)piperazine-1-carbonyl]-5-(2-oxopyrrolidin-1-yl)phenyl]-3-methylimidazolidin-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Pyrrolidone | HCID 12025 | — |
| Reactant | Potassium Phosphate, Tribasic | HCID 62657 | — |
| Reactant | Di-tert-butyl[3,4,5,6-tetramethyl-2',4',6'-tris(propan-2-yl)-[1,1'-biphenyl]-2-yl]phosphane | HCID 11953610 | — |
| Reactant | 1-{5-Chloro-2-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-3-methylimidazolidin-2-one | HCID 58484802 | — |
| Catalyst | Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1) | HCID 11029508 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | tert-Butanol | HCID 6386 | — |
| Product | 1-[2-[4-(3,5-Dimethylpyridin-2-yl)piperazine-1-carbonyl]-5-(2-oxopyrrolidin-1-yl)phenyl]-3-methylimidazolidin-2-one | HCID 71252749 | 48% |
Reaction Steps
To a mixture of 1-{5-chloro-2-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-3-methylimidazolidin-2-one (116 mg) described in Preparation Example 241, pyrrolidin-2-one (35 mg), tripotassium phosphate (81 mg), tris(dibenzylideneacetone)dipalladium(0)-chloroform adduct (28 mg) and 2-di-tert-butylphosphino-3,4,5,6-tetramethyl-2′,4′,6′-triisopropyl-1,1′-biphenyl (13 mg) was added tert-butanol (1.5 mL), and the mixture was stirred with heating under reflux for 8 hr. After cooling, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The solvent was evaporated, and the residue was purified by column chromatography (ethyl acetate:methanol) to give the title compound (62 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08816079B2 |
| Source dataset | uspto-grants-2014_08 |
| ORD ID | ord-8b305a82bb3c408998d7fa5cd9e6c64b |
| Source note | uspto-grants-2014_08 |