Abstract Reactions of acylated Baylis–Hillman adducts bearing nitrile, ester, or ketone groups with C 6 F 5-substituted silicon reagents Me n Si (C 6 F 5) 4–n (n= 1–3) have been studied. The reactions are initiated by Bu 4 NOAc (5 mol-%) in MeCN or DMF under mild conditions and afford products of allylic substitution of the acetoxy group by the C 6 F 5 carbanion in good yields. Predominant or exclusive formation of one geometrical isomer ...
