反应详情

温度

100 °C

5-Iodo-2-methoxy-benzoic acid methyl ester (500 mg, 1.7 mmol), morpholine (223 μl, 2.5 mmol), cesium carbonate (850 mg, 2.7 mmol), xantphos (60 mg, 0.1 mmol) and bis(dibenzylideneacetone)dipalladium (35 mg, 0.04 mmol) were suspended in dioxane (5 ml) and heated at 100° C. for 5 h. The mixture was then cooled, filtered and the residue was purified by flash column chromatography [SiO2, EtOAc] to give 2-methoxy-5-morpholin-4-yl-benzoic acid methyl ester (170 mg) as a colourless solid. (LC/MS (basic method): Rt 2.35 min, [M+H]+ 252).

1. temperatureThe mixture was then cooled
2. filtrationfiltered
3. customthe residue was purified by flash column chromatography [SiO2, EtOAc]