as well as hydrogen abstraction reactions of (2-cyanoethyl)trimethylsilane were examined. These compounds exhibit high reactivities in free-radical reactions, demonstrating existence of the σπ captodativeeffect.
Novel 1,4-elimination reaction of C,N-bis(trimethylsilyl)-C- trimethylsiloxymethylketenimine and retro Diels-Alder reaction of 2-oligosiloxanyl-5-norbornene-2-carbonitrile cleanly gave α-oligosiloxanylacrylonitriles in excellent yield.