Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Bromobenzyl bromide | HCID 68527 | — |
| Reactant | HCID 19974937 | HCID 19974937 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Hexamethylphosphoramide | HCID 12679 | — |
| Product | HCID 22148991 | HCID 22148991 | 32.5% |
Reaction Steps
To a cold (-78° C.) solution of the indole from Step 1 (877 mg, 4.04 mmol) in 40 mL of THF and 2.5 mL of HMPA was added n-BuLi (1.45M solution in hexanes, 5.6 mL, 8.12 mmol), giving a thick slurry. The mixture was warmed to 0° C., then cooled to -78° C. A solution of p-bromobenzyl bromide (1.18 g, 4.72 mmol) in 8 mL of THF was then added, and the mixture was warmed to room temperature. After 30 min, the reaction was poured into 1M HCl and extracted with ether. The organic layer was washed thrice with water, then with brine, dried over MgSO4, filtered and evaporated. The residue was purified by flash chromatography (30% ethyl acetate/hexanes) to give 529 mg of the title compound as a crystaline solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05604253 |
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| Source dataset | uspto-grants-1997_02 |
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| ORD ID | ord-9da3e03f21694e729140c512b0c19270 |
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| Source note | uspto-grants-1997_02 |
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