反应详情

In a stream of argon, phenylboronic acid (904 mg), 4,6-bis(5-chlorobiphenyl-3-yl)-2-(3,5-dibromophenyl)-1,3,5-triazine (1.70 g), cesium carbonate (2.41 g) and tetrakis(triphenylphosphine)palladium (114 mg) were suspended in tetrahydrofuran (80 mL), and the mixture was refluxed for 18 hours. The reaction mixture was left to stand at room temperature, and then low-boiling ingredients were distilled away under a reduced pressure. Methanol was added to the reaction mixture, and the solid precipitate was recovered by filtration, and purified by silica gel chromatography using a chloroform/hexane (1:2 to 1:0) mixed liquid as a developing solvent to give 1.42 g of the target 2,4-bis(5-chlorobiphenyl-3-yl)-6-[(1,1′:3′,1″)-terphenyl-5′-yl]-1,3,5-triazine as a yellowish white powder (yield: 84%).

1. temperaturethe mixture was refluxed for 18 hours
2. waitThe reaction mixture was left
3. customto stand at room temperature
4. distillationlow-boiling ingredients were distilled away under a reduced pressure
5. additionMethanol was added to the reaction mixture
6. filtrationthe solid precipitate was recovered by filtration
7. custompurified by silica gel chromatography
8. additionmixed liquid as a developing solvent