Toluene → Di-n-hexylbis(2-methyl-indenyl)silane

Participants

Reaction Conditions

Reaction Steps

9.2 g (70.7 mmoles) of 2-methylindene are introduced into 200 mL of toluene and 15 mL of THF, and 28.3 mL of n-butyllithium (2.5 M in toluene) are added without interruption at room temperature. After this addition is complete, the mixture is heated to 80° C. and stirred at this temperature for one hour. It is allowed to cool to 40° C., then 9.5 g (35.4 mmoles) of di-n-hexyldichlorosilane are slowly added dropwise. After this addition, the reaction solution is stirred for three hours at 60° C. and then overnight at room temperature. 80 mL of water are added and the phases that form are separated. The organic phase is washed with 100 mL of water, and the aqueous phase is extracted three times with a total of 100 mL of toluene. The combined organic phases are dried over magnesium sulfate. After separation of the magnesium sulfate, the solvent is removed and the residue is purified by column chromatography. The desired product is isolated in a yield of 13.3 g (82%) (purity 99%).

Provenance & Evidence