反应详情

In argon atmosphere, a mixture of 13.91 g (80.9 mmol) of 2-naphthaleneboronic acid, 30.0 g (80.9 mmol) of 2-bromo-7-iodo-9,9-dimethylfluorene, 4.67 g (4.0 mmol) of tetrakis(triphenylphosphine)palladium (0), 200 ml of toluene, 200 ml of dimethoxyethane, and 122.36 g of a 2 M sodium carbonate aqueous solution was refluxed under stirring for 8 h and left standing overnight. After adding water, the mixture was stirred at room temperature for one hour. After filtration and extraction with toluene, the organic phase was washed with water and then with a saturated saline solution. After drying over sodium sulfate, the toluene was distilled off under reduced pressure. The residue was purified by silica gel chromatography to obtain 21.3 g (yield: 76.1%) of 2-bromo-9,9-dimethyl-7-(naphthalene-2-yl)-9H-fluorene.

1. temperaturewas refluxed
2. waitleft
3. waitstanding overnight
4. stirringthe mixture was stirred at room temperature for one hour
5. filtrationAfter filtration and extraction with toluene
6. washthe organic phase was washed with water
7. dry with materialAfter drying over sodium sulfate
8. distillationthe toluene was distilled off under reduced pressure
9. customThe residue was purified by silica gel chromatography