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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1451515Generated: November 1, 2026

Hydrochloric Acid → HCID 22148991, compound

https://huagongshe.com/reaction/1451515

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Bromobenzyl bromideHCID 68527—
ReactantHCID 19974937HCID 19974937—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
SolventHexamethylphosphoramideHCID 12679—
ProductHCID 22148991HCID 2214899132.5%

Reaction Conditions

Temperature0 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05604253
Source datasetuspto-grants-1997_02
ORD IDord-9da3e03f21694e729140c512b0c19270
Source noteuspto-grants-1997_02