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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 33775Generated: October 26, 2026

Methyl iodide → 2-Ethylquinoline

https://huagongshe.com/reaction/33775

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
Reactant2-MethylquinolineHCID 7060—
ReactantDiisopropylamineHCID 7912—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
Product2-EthylquinolineHCID 137113—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a 0.40 M solution of diisopropyl amine in THF at −10° C. was added slowly 1.0 equiv of a solution of n-BuLi (2.5 M/hexane). After 10 min, the mixture was cooled to −78° C. and 0.9 equiv of quinaldine was added dropwise. The red/orange solution was then stirred at 0° C. for 1 h. MeI was then added and the reaction was stirred at room temperature for 2 h. The reaction was quenched with aqueous NH4Cl solution, and then extracted with EtOAc. The organic phase was washed with H2O and brine. The solution was then dried (MgSO4), filtered, and evaporated. The crude material was purified by flash chromatography with 1:10 EtOAc:hexanes to give the title compound as a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429666B2
Source datasetuspto-grants-2008_09
ORD IDord-b46e68255d4c420991e21cad2ba93f5c
Source noteuspto-grants-2008_09