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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1531808Generated: October 31, 2026

Ethyl Bromide → HCID 21250523, compound

https://huagongshe.com/reaction/1531808

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl BromideHCID 6332—
ReactantIodoethaneHCID 6340—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 70239045HCID 70239045—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
ProductHCID 21250523HCID 21250523—

Reaction Conditions

Temperature80 °C

Reaction Steps

2 Ethylcarboxy-5-cyanoindole (497 mg) [Liebigs Ann Chem, (3), 438-55 (1986)] and potassium carbonate (960 mg) were mixed in acetonitrile (25 ml) and bromoethane (191 μl) added. The reaction mixture was stirred for 18 hrs at 80° C. under a atmosphere of nitrogen. Iodoethane (200 μl) was added and the reaction mixture heated to 60° C. for 18 hrs after which time the mixture was diluted with ethyl acetate (100 ml) and washed with water, dried over MgSO4 and evaporated under reduced pressure. The crude product was purified by column chromatography on silica gel eluting with Hexane/Isopropanol/ 0.88 ammonium hydroxide (95/5/0.25, v/v) to afford the title compound as a white solid (455 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06200978B1
Source datasetuspto-grants-2001_03
ORD IDord-4124d54a0678408e8cad4919bd4240b4
Source noteuspto-grants-2001_03