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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 907090Generated: October 31, 2026

Methyl iodide → 6-ethoxy-1-ethyl-1H-indole-3-carbonitrile

https://huagongshe.com/reaction/907090

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantMethyl Ethyl KetoneHCID 6569—
ReactantPotassium CarbonateHCID 11430—
Reactant6-hydroxy-1-ethyl-1H-indole-3-carbonitrileHCID 59425060—
SolventWaterHCID 962—
Product6-ethoxy-1-ethyl-1H-indole-3-carbonitrileHCID 11593725100%

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 was added anhydrous K2CO3 (71 mg, 0.52 mmol) and iodomethane (0.05 mL, 0.60 mmol). After stirring overnight at reflux, the reaction mixture was cooled, diluted with H2O and extracted with EtOAc (3×). The combined organic phases were dried and concentrated. Flash chromatography (CH2Cl2) gave 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 numberUS08013006B2
Source datasetuspto-grants-2011_09
ORD IDord-a29be489d14b4fa282e66e713d1f7838
Source noteuspto-grants-2011_09