HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 57516628, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Borane | HCID 6331 | — |
| Reactant | HCID 57516627 | HCID 57516627 | — |
| Solvent | Dimethyl Sulfide | HCID 1068 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 57516628 | HCID 57516628 | 75.2% |
Reaction Steps
1-(3-Bromo-phenyl)-3,3-dimethyl-pyrrolidine-2,5-dione (2.5 g, 8.9 mmol) was suspended in 45 ml of THF. Borane (7.9 ml of a 10.1M solution in methyl sulfide) was added and the reaction was stirred at room temperature for 3 hours. The reaction was cooled to 0° C. in an ice bath and 20 ml of methanol was added dropwise, then 60 ml of water. The mixture was transferred to a separatory funnel and methylene chloride was added. The organic phase was washed with water and brine, filtered through celite and concentrated. The crude product was purified by flash chromatography using a gradient of 0% to 5% ethyl acetate in hexanes to give 1.7 g (75%) of 1-(3-bromo-phenyl)-3,3-dimethyl-pyrrolidine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08008298B2 |
| Source dataset | uspto-grants-2011_08 |
| ORD ID | ord-c745c671dba54edca48666ac23551d80 |
| Source note | uspto-grants-2011_08 |