反应详情

温度

80 °C

To a suspension of 2-bromo-5-methoxycarbonylthiophene (1.11 g) and phenylboronic acid (0.79 g) and tetrakis(triphenylphosphine)-palladium (289 mg) in 1,2-dimethoxyethane (10 ml) was added an aqueous solution of sodium carbonate (2M, 6.5 ml) followed by stirring at 80° C. for 18 hours. The mixture was diluted with dichloromethane and washed with water and brine. The mixture was dried over magnesium sulfate and evaporated under reduced pressure. The residue was triturated with methanol. The resulting precipitate was collected by filtration, washed with methanol and diisopropyl ether and dried to give 2-methoxycarbonyl-5-phenylthiophene (918 mg, 84.2%).

1. washwashed with water and brine
2. dry with materialThe mixture was dried over magnesium sulfate
3. customevaporated under reduced pressure
4. customThe residue was triturated with methanol
5. filtrationThe resulting precipitate was collected by filtration
6. washwashed with methanol and diisopropyl ether
7. customdried