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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 505989Generated: November 3, 2026

Iodoethane → 6-ethoxy-1-ethyl-1H-indole-3-carbonitrile

https://huagongshe.com/reaction/505989

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoethaneHCID 6340—
ReactantPotassium CarbonateHCID 11430—
Reactant6-hydroxy-1-ethyl-1H-indole-3-carbonitrileHCID 59425060—
SolventWaterHCID 962—
SolventMethyl Ethyl KetoneHCID 6569—
Product6-ethoxy-1-ethyl-1H-indole-3-carbonitrileHCID 11593725102%

Reaction Steps

To a solution 6-hydoxy-1-ethyl-1H-indole-3-carbonitrile (80 mg, 0.43 mmol) in 5 mL of methyl ethyl ketone is added anhydrous K2CO3 (71 mg, 0.52 mmol) and iodoethane (0.05 mL, 0.60 mmol). After stirring overnight at reflux, the reaction mixture is cooled, diluted with H2O and extracted with EtOAc (3×). The combined organic phases are dried and concentrated. Flash chromatography (CH2Cl2) gives 94 mg (100%) of 6-ethoxy-1-ethyl-1H-indole-3-carbonitrile as a white wax.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07781478B2
Source datasetuspto-grants-2010_08
ORD IDord-daa190e659594b7fbba4621ad05c47b8
Source noteuspto-grants-2010_08