HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 58237942, compound → HCID 67104684, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 58237942 | HCID 58237942 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Catalyst | Methyltriphenyliphosphonium bromide | HCID 74505 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 67104684 | HCID 67104684 | 60.6% |
Reaction Steps
To a solution of CH3PPh3Br (863.9 mg 2.42 mmol) in THF (8 mL) was added n-BuLi (0.678 ml, 1.69 mmol) at −78° C. under N2. The mixture was stirred at rt for 1 h, a solution of (R)-1-((S)-1-(4-bromophenyl)ethyl)-4-(2-oxopropyl)-4-phenylpiperidin-2-one (100 mg 0.24 mmol) in THF (5 mL) was added, and the mixture was stirred at reflux overnight. The reaction was quenched by satd aq NH4Cl and extracted with EtOAc. The combined organic phase was dried and concentrated to give the crude product, which was purified by preparative TLC to give (S)-1-((S)-1-(4-bromophenyl)ethyl)-4-(2-methylallyl)-4-phenylpiperidin-2-one (60 mg, 60%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08680281B2 |
| Source dataset | uspto-grants-2014_03 |
| ORD ID | ord-2b1277ab3bd44abfbc707eb32c5a5814 |
| Source note | uspto-grants-2014_03 |