A Convenient One-Pot Synthesis of Substituted 1,1-Dicyanocyclopropanes from Sulfonium Salts, Malononitrile, and Carbonyl Compounds - Shestopalov, Aleksandr; Rodinovskaya, Lyudmila; Shestopalov, Anatoliy; Zlotin, Sergey; Nesterov, Vladimir (Synlett, 2003)