Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | HCID 18509523 | HCID 18509523 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Catalyst | Methyltriphenyliphosphonium bromide | HCID 74505 | — |
| Solvent | Benzene | HCID 241 | — |
| Product | HCID 18509398 | HCID 18509398 | 63% |
Reaction Steps
Methyl triphenylphosphonium bromide (0.18 g; 4.94×10−1 mmol) was added to benzene (7 ml). While the mixture was stirred under nitrogen atmosphere at room temperature, n-butyl lithium in n-hexane (1.56 M: 0.32 ml; 5.00×10−1 mmol) was added dropwise. The mixture was stirred for 5 minutes, and Compound 19 (0.08 g; 2.47×10−1 mmol) in benzene (5 ml) was added dropwise thereto, followed by heating under reflux for 2 hours. The mixture was brought to room temperature, and the reaction was stopped by pouring the mixture into ice/water, followed by extraction with benzene (100 ml). The organic layer was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=10:1), to thereby yield 0.05 g of the target compound as colorless transparent oily matter (yield: 63%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06586633B1 |
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| Source dataset | uspto-grants-2003_07 |
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| ORD ID | ord-095a4350b07e42d1aebcfdee0847c10d |
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| Source note | uspto-grants-2003_07 |
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