Silylmagnesium reagents

Aminosilyl)magnesium species are obtained by reaction of the silyllithiums with /-PrMgBr (Scheme 8). The silylmagnesium reagents are milder... 

The silylmagnesium reagent PhjSiMgBr, which is formed by the addition... 

Coupling of Halosilanes with Silyl Anions 467 Coupling of chlorosilane with silyllithium 467 Coupling of chlorosilane with silylpotassium 468 Coupling of chlorosilane with a silylmagnesium reagent 469... 

To a suspension of lithium (granular, 1.66 g, 239 mmol) and THF (50 mL) was added a solution of chlorodimethylphenylsilane (10.0 mL, 60.5 mmol) in THF (10 mL) dropwise over 20 min at 0°C. After stirring for 4 h, the resulting mixture was filtered to remove excess lithium. To this silyllithium solution was added 60 mL (60.6 mmol) of a 1.01 M solution of isopropylmagnesium bromide in diethyl ether dropwise over 20 min at 0°C to give a silylmagnesium reagent. 

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