Dichlorodimethylsilane → HCID 23295624, compound

Participants

Reaction Steps

23 g (180 mmol) of dimethyldichlorosilane was dissolved in 200 ml of dry n-hexane (dried over Na-K alloy), to which was added a solution of 2-methyl-7-(1-naphthyl)indenyllithium (i.e., a solution of 9.2 g (36 mmol) of 2-methyl-7-(1-naphthyl)indene in a mixed solvent of 75 ml of dry toluene and 5 ml of tetrahydrofuran to which was dripped down 22.5 ml of a 1.6 M hexane solution of n-butyllithium at -78° C., followed by stirring at room temperature for 3 hours and by addition of 50 ml of tetrahydrofuran) under ice cooling. The mixture was stirred as was at room temperature for 3 hours to deposit white salt of lithium chloride. After standing the mixture so that the white salt precipitated, the supernatant was extracted with a syringe and transferred into another flask and low boiling components (solvent and unreacted dimethyldichlorosilane) were distilled off under reduced pressure at 8 mmHg to obtain dimethyl(2-methyl-4-(1-naphthyl)indenyl)silyl chloride.

Provenance & Evidence