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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629163Generated: November 2, 2026

Methyl iodide → 5-isopentyl-1-methyl-1H-indole-2-carbaldehyde

https://huagongshe.com/reaction/629163

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
Reactant5-isopentyl-1H-indole-2-carbaldehydeHCID 118222730—
SolventDimethylformamideHCID 6228—
Product5-isopentyl-1-methyl-1H-indole-2-carbaldehydeHCID 11822283615.2%

Reaction Conditions

Temperature150 °C

Reaction Steps

To a solution of 5-isopentyl-1H-indole-2-carbaldehyde (100 mg, 0.46 mmol) and methyl iodide (71 mg, 0.50 mmol) in 0.93 mL dimethylformamide was added potassium carbonate (71 mg, 0.51 mmol). The resulting suspension was stirred vigorously at 150° C. in a sealed vial under argon for 1 h. Solids were filtered and the liquor concentrated before being subjected to chromatography on silica gel (40% ethyl acetate in hexanes) to give 5-isopentyl-1-methyl-1H-indole-2-carbaldehyde (16 mg, 15%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315495B2
Source datasetuspto-grants-2016_04
ORD IDord-77b412ea565e44de8971bece1e8e4a3c
Source noteuspto-grants-2016_04