Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | 5-(benzyloxy)-1-bromo-2-(bromomethyl)-4-methoxybenzene | HCID 12062736 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Hexane | HCID 8058 | — |
| Product | HCID 11325431 | HCID 11325431 | 55% |
Reaction Steps
To a solution of n-butyllithium (1.8 mL of a 2.5 M solution in hexane, 4.5 mmol) in 5 mL of tetrahydrofuran is added a solution of acetonitrile (1.0 mL, 19.1 mmol) in 5 mL of tetrahydrofuran. The reaction mixture is stirred at −78° C. for 15 min. A solution of 5-(benzyloxy)-1-bromo-2-(bromomethyl)-4-methoxybenzene (0.7 g, 1.8 mmol) in 3 mL of tetrahydrofuran is added and stirring is continued for 1 hour at −78° C. The reaction is quenched by the addition of 15 mL of water and the mixture is allowed to warm to room temperature. The mixture is extracted with ethyl acetate and the organic layers combined, then dried with sodium sulfate. After reducing in vacuo, the crude product is purified by flash chromatography using a gradient of 95:5 to 4:1 hexanes/ethyl acetate as an eluent. The clean fractions are combined, reduced in vacuo and dried to yield 0.343 g of 3-(4-benzyloxy-2-bromo-5-methoxyphenyl)-propionitrile as a white solid, mp 52-53° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07365197B2 |
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| Source dataset | uspto-grants-2008_04 |
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| ORD ID | ord-0fee426e4fa74830b250e16f15a8c053 |
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| Source note | uspto-grants-2008_04 |
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