lithium hexamethyldisilazane 1.) THF, -78 deg C, 10 min, 2.) THF, -78 deg, 10 min; Yield given. Multistep reaction. Yields of byproduct given;

lithium hexamethyldisilazane 1.) THF, -78 deg C, 10 min, 2.) THF, -78 deg, 10 min; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;