(2-cyanoallyl)trimethylsilane and (2-cyanoethyl)trimethylsilane: unique σπ captodative systems
Addition reactions of (2-cyanoallyl)trimethylsilane 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 captodative effect.