Preparation of (Triphenylsilyl) allyl Anion and (Triphenylgermyl) allyl Anion from 1-Propenyltriphenylsilane and 1-Propenyltriphenylgermane and Their Reactions with …
Treatment of 1-propenyltriphenylsilane with n-BuLi in THF-HMPA provides (triphenylsilyl) allyl anion which is identical with an anion derived from 2-propenyltriphenylsilane and base. Generation of (triphenylgermyl) allyl anion is also described. Addition of alkyl halides or carbonyl compounds to these anions gives the corresponding adducts regioselectively.
