Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629161Generated: October 30, 2026

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

https://huagongshe.com/reaction/629161

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
Reactant5-butyl-1H-indole-2-carbaldehydeHCID 118222784—
SolventDimethylformamideHCID 6228—
Product5-butyl-1-methyl-1H-indole-2-carbaldehydeHCID 11822279518.8%

Reaction Conditions

Temperature150 °C

Reaction Steps

To a solution of 5-butyl-1H-indole-2-carbaldehyde (75 mg, 0.37 mmol) and methyl iodide (57 mg, 0.40 mmol) in 0.75 mL dimethylformamide was added potassium carbonate (57 mg, 0.41 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-butyl-1-methyl-1H-indole-2-carbaldehyde (15 mg, 18%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315495B2
Source datasetuspto-grants-2016_04
ORD IDord-fd48127568a9497fb79d2c32dfbb8751
Source noteuspto-grants-2016_04