6-Bromo-4-chloroquinoline → 6-Bromo-4-cyclohexylmethoxy-quinoline

Participants

Reaction Conditions

Reaction Steps

To a solution of 6-bromo-4-chloro-quinoline (0.550 g, 2.27 mmol) in cyclohexylmethanol (5 mL) was added a solution of sodium cyclohexylmethoxide (11.34 mmol, prepared from cyclohexylmethanol and sodium) at room temperature. Then, the reaction mixture was heated to 120° C. for 15 h in a sealed reaction flask. After cooling to room temperature, the reaction mixture was diluted with water and the solvent was removed under the vacuum. Then, the remaining aqueous solution was neutralized with 3.0N hydrochloric acid and the organic compound was extracted into ethyl acetate (3×50 mL). The combined extracts were washed with brine solution and dried over anhydrous magnesium sulfate. After filtration of the drying agent, the filtrate was removed under the vacuum and the residue was purified by using a Biotage silica gel column chromatography to afford 0.518 g (71% yield) of 6-bromo-4-cyclohexylmethoxy-quinoline as a light yellow oil: EI-HRMS m/e calcd for C16H18BrNO (M+) 320.2304, found 320.2314.

Provenance & Evidence