反应详情

温度

100 °C

To a solution of 2-benzenesulfonylamino-5-methylthio-3-iodo-pyridine (100 mg) in 1,4-dioxane (2.5 ml), 5-ethoxycarbonyl-2-trimethylsilylethynylpyridine (185 mg), bistriphenylphosphine palladium dichloride (9 mg), cuprous iodide (5 mg) and potassium acetate (37 mg) were added successively and the mixture was stirred in a sealed tube at 100° C. for 15 hours. After cooling, the reaction solution was poured into water, extracted with ethyl acetate, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was separated using silica gel preparative thin-layer chromatography (hexane:ethyl acetate=2:1) to obtain 110 mg of the desired product as an orange oil.

1. temperatureAfter cooling
2. extractionextracted with ethyl acetate
3. dry with materialdried over anhydrous magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe resulting residue was separated