T=150°C; 1 h; Yield given. Yields of byproduct given;

(i) nBuLi, (ii) /BRN= 1900368/; Multistep reaction;

in pentane

in hexane under N2 atm. lithioferrocene was added at -78°C to stirred soln. (chloromethyl)dimethylfluorosilane in hexane, react. mixt. was stirredovernight at room temp.; react. mixt. was cooled to 0°C and hydrolized with water, mixt. was filtered, organic layer was dried over Na2SO4, solvent was removed in vacuo, by-products were removed by sublimation and product was distilled in vacuo;