104110-08-9Relevant academic research and scientific papers
Synthesis of stannaindenyl anions and a dianion
Saito, Masaichi,Shimosawa, Masakazu,Yoshioka, Michikazu,Ishimura, Kazuya,Nagase, Shigeru
, p. 2967 - 2971 (2008/10/09)
Reduction of 1,1-diphenylstannaindene with excess lithium gave the intermediary 1-phenyl-1-stannaindenyl anion, which was further reduced to provide the 1-stannaindenyl dianion. The remarkable upfield 7Li NMR resonance in the dianion and the theoretical calculation suggest that the 1-stannaindenyl dianion has considerable aromatic character, as was observed in the sila- and germaindenyl dianions. Reaction of the 1-stannaindenyl dianion with tert-butyl chloride gave the 1-tert-butyl-1-stannaindenyl anion, as evidenced by NMR detection as well as a trapping experiment.
