1,4-Dioxane → (4-Chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(1,2-dimethyl-1H-imidazol-5-yl)methanone

Participants

Reaction Conditions

Reaction Steps

To a flask containing (4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(1,2-dimethyl-1H-imidazol-5-yl)methanol (1.68 g, 3.53 mmol, Intermediate 8: step a) was added 1,4-dioxane (75 mL) and THF (10 mL) which produced a suspension at room temperature. Warming to 45° C. formed a homogeneous solution. Then, manganese dioxide (1.5 g, 17.25 mmol) was introduced and the mixture was heated to 80° C. After 60 minutes, the contents were filtered through a Celite® pad, rinsing with THF, and then the solution was concentrated. Trituration with Et2O provided the title compound as a white powder.

Provenance & Evidence