Sodium hydride → 8-Fluoro-4-[2-(4-methylphenyl)ethoxy]quinoline

Participants

Reaction Steps

To a solution of 1.2 g of sodium hydride in 50 ml of DMF was added 3.4 g of 2-(4-methylphenyl)ethanol, and the mixture was stirred for one hour at room temperature. Then 4.5 g of 4-chloro-8-fluoroquinoline were added, the mixture was heated to reflux for five hours, and then cooled to room temperature, and poured into a mixture of ice in water. The solid phase was collected and dried. TLC showed three products. These were separated by HPLC (silica gel, 70% pentane/30% EtOAc) giving 1.84 g of 8-fluoro-4-[2-(4-methylphenyl)ethoxy]quinoline (Yield: 26.3%; M.P. 89°-90° C.) 0.610 g of 4-chloro-8-[2-(4-methylphenyl)ethoxy]quinoline (Yield: 8.7%; M.P. 74°-75° C.); and 0.450 g of 4,8-bis[2-(4-methylphenyl)ethoxy]quinoline (Yield: 6.4%; M.P. 142°-143° C).

Provenance & Evidence