反应详情

10 g (42.2 mmol) of 2,5-dibromopyridine, 5.2 g (42.2 mmol) of phenylboronic acid and 30 ml of benzene are placed in a 250 ml three-necked round-bottomed flask, 1.5 g (1.3 mmol) of tetrakis(triphenylphosphine)palladium, 30 ml of benzene and 30 ml of aqueous 2 M sodium carbonate solution and 1.4 ml of ethanol are added and the mixture is refluxed for 17 h.

1. temperaturethe mixture is refluxed for 17 h.