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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1909880Generated: November 1, 2026

Citric Acid → HCID 58306784, compound

https://huagongshe.com/reaction/1909880

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantImidazoleHCID 795—
Reactanttert-Butyldimethylsilyl chlorideHCID 28928—
ReactantHCID 58306818HCID 58306818—
SolventDimethylformamideHCID 6228—
ProductHCID 58306784HCID 5830678496.5%

Reaction Steps

To 2-(7-bromo-1H-indol-1-yl)-1-phenylethanol (0.70 g) were added DMF (7.0 mL), tert-butyl(chloro)dimethylsilane (0.47 g), and imidazole (0.23 g), followed by stirring at room temperature for 25 hours. To the reaction mixture was added a 10% aqueous citric acid solution (15 mL), followed by extraction with ethyl acetate, and the obtained organic layer was washed with brine. After drying over anhydrous sodium sulfate and concentrating under reduced pressure, the obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=99/1-90/10) to obtain 7-bromo-1-(2-{[tert-butyl(dimethyl)silyl]oxy}-2-phenylethyl)-1H-indole (0.92 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598355B2
Source datasetuspto-grants-2013_12
ORD IDord-107b1691de5b451fb657570884ef056a
Source noteuspto-grants-2013_12