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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 339049Generated: October 27, 2026

Ethyl Bromide → 7-Ethoxy-2-methylquinoline

https://huagongshe.com/reaction/339049

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl BromideHCID 6332—
ReactantCesium carbonateHCID 10796—
Reactant2-Methylquinolin-7-olHCID 135451969—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product7-Ethoxy-2-methylquinolineHCID 8670753888.5%

Reaction Steps

To a stirred mixture of 2-methylquinolin-7-ol (400 mg, 2.51 mmol), Cs2CO3 (2.46 g, 7.54 mmol) and NMP (12 mL) was added bromoethane (0.563 mL, 7.54 mmol). The reaction mixture was stirred at ambient temperature overnight. The reaction was partitioned between ether and water. The aqueous layer was extracted with ether. The combined organic layers were washed with water and brine, dried and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (2:1 to 5:1 hexanes:EtOAc) to give 7-ethoxy-2-methylquinoline (416 mg, 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889704B2
Source datasetuspto-grants-2014_11
ORD IDord-10c8578d969a46b094202a0b360964fb
Source noteuspto-grants-2014_11