反应详情

温度

60 °C

1.03 g (5 mmol) of 2,4-di-tert-butylphenol in 10 ml of toluene/1 ml of THF were admixed at room temperature with 1.85 ml (5 mmol) of a 20% strength solution of butyllithium in toluene. The mixture was stirred for another 1 hour at 60° C. At room temperature, 1.19 g (2.5 mmol) of dimethylsilanediyl-bis(2-methylindenyl)zirconium dichloride were added as a solid. The suspension was stirred at 60° C. for 2 hours and subsequently filtered hot through Celite. The filter cake was extracted 3 times with 10 ml each time of toluene (60° C.). After evaporation of the solvent, the yellow solid which had precipitated was filtered off and dried under reduced pressure. This gave 0.87 g (53%) of dimethylsilanediylbis(2-methylindenyl)zirconium monochloride mono(2,4-di-tert-butylphenoxide) (2).

1. stirringThe suspension was stirred at 60° C. for 2 hours and subsequently filtered hot through Celite
2. extractionThe filter cake was extracted 3 times with 10 ml each time of toluene (60° C.)
3. customAfter evaporation of the solvent
4. customthe yellow solid which had precipitated
5. filtrationwas filtered off
6. customdried under reduced pressure