反应详情

4-Trifluoromethanesulfonyloxy-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester (208 mg, 0.5 mmol), 3,4-dimethylphenylboronic acid (82.5 mg, 0.55 mmol), tetrakis(triphenylphosphine)palladium(0) (29 mg) and potassium phosphate (159 mg, 0.75 mmol) were heated together in dioxane (5 mL) to 80° C. overnight. The reaction mixture was then diluted with ethyl acetate and washed with brine twice. The organic layer was dried over sodium sulfate, concentrated, and the residue purified by flash column eluted with 30% ethyl acetate in hexane to yield 4-(3,4-dimethyl-phenyl)-7-trifluoromethyl-quinoline-3-carboxylic acid ethyl ester as a slight yellow oil.

1. washwashed with brine twice
2. dry with materialThe organic layer was dried over sodium sulfate
3. concentrationconcentrated
4. customthe residue purified by flash column
5. washeluted with 30% ethyl acetate in hexane