HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 23021902, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Pyrrolidine | HCID 31268 | — |
| Reactant | Methyl 4-bromo-2-methylbenzoate | HCID 22031226 | — |
| Catalyst | Binap, (A+-)- | HCID 634876 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 23021902 | HCID 23021902 | — |
Reaction Steps
2.0 g of methyl 4-bromo-2-methylbenzoate were dissolved in 20 ml of toluene, and 1.08 ml of pyrrolidine, 4.0 g of cesium carbonate, 200 mg of tris(dibenzylideneacetone)-dipalladium (0) and 200 mg of (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl were added thereto, and then the mixture was heated under reflux for 6 hours. The reaction solution was cooled, mixed with water and EtOAc, and extracted. The organic layer was washed with water and brine, and dried over anhydrous sodium sulfate. After evaporating the solvent, the residue was purified by silica gel column chromatography (hexane-EtOAc (25:1)) to obtain 0.784 g of methyl 2-methyl-4-pyrrolidin-1-ylbenzoate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07169772B2 |
| Source dataset | uspto-grants-2007_01 |
| ORD ID | ord-ebd5a574e44b4daebc89d3362fe98d84 |
| Source note | uspto-grants-2007_01 |