反应详情

温度

80 °C

33.8 g (0.1 mol) of methyl 4′-iodobiphenyl-4-carboxylate are introduced together with 29.3 g (0.125 mol) of glycol ester of 4-n-pentoxyphenylboronic acid, 70 mg of bis(triphenylphosphine)palladium dichloride and 15.9 g (0.15 mol) of sodium carbonate into 300 ml of DMF and stirred at 80° C. for 12 hours. After filtration and washing with water, the dried residue is recrystallized from DMF. This affords 20.5 g (45%) of methyl 4″-n-pentoxy-[1,1′:4′,1″]-terphenyl-4-carboxylate of melting point 248° C.

1. filtrationAfter filtration
2. washwashing with water
3. customthe dried residue is recrystallized from DMF