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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 486062Generated: October 31, 2026

Ethyl Acetate → HCID 53909511, compound

https://huagongshe.com/reaction/486062

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 19097339HCID 19097339—
SolventAcetic Acid Mixture with Hydrobromic AcidHCID 21893785—
ProductHCID 53909511HCID 5390951198.8%

Reaction Steps

3-Ethyl-5-methoxy-2-propyl indole (2.92 g) in 15 ml of hydrogen bromide acetic acid solution was heated at 100° C. for 4 hours. The cooled solution was poured into an aqueous sodium bicarbonate solution (100 ml) and ethyl acetate with stirring. The separated organic layer was washed with water, dried over magnesium sulfate, and concentrated in vacuo. The crude product was chromatographed on silica gel using 30% ethyl acetate in n-hexanes as eluent to yield 3-ethyl-5-hydroxy-2-propyl indole (2.7 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05290788
Source datasetuspto-grants-1994_03
ORD IDord-be1364ea0d074675ac990b494bfe3819
Source noteuspto-grants-1994_03