2-Chloroethanol → HCID 11740619, compound

Participants

Reaction Steps

A solution of 3-butyryl-4-(4-fluoro-2-methylphenyl-amino)-8-hydroxyquinoline (3.2 g, 9.4 mmol) and potassium t-butoxide (1.83 g, 15 mmol) in tetrahydrofuran (75 ml) was warmed to reflux, 2-chloroethanol (1.3 ml, 20 mmol) added, and heating continued for 2 days. The solvent was evaporated, the residue taken up in dichloromethane, washed with water and brine, dried and evaporated. Chromatography (silica gel, 5% methanol in dichloromethane) gave initially recovered starting material, followed by product fractions which were recrystallised from ethyl acetate/petroleum ether, then from methanol to give 3-butyryl-4-(4-fluoro-2-methylphenylamino)-8-(2-hydroxyethoxy)quinoline as a hygroscopic solid (0.82 g, 23%), m.p. 130°-133°.

Provenance & Evidence