Synthesis of Multi-Substituted Cyclobutanes and Alkylidenecyclobutanes by the Reaction of Cyclobutylmagnesium Carbenoids with Nucleophiles - Satoh, Tsuyoshi; Kasuya, Takashi; Ishigaki, Masashi; Inumaru, Mio; Miyagawa, Toshifumi; Nakaya, Nobuhito; Sugiyama, Shimpei (Synthesis, 2011)