Ito Shigekazu, Miura Joji, Morita Noboru, Yoshifuji Masaaki, Arduengo Anthony J
Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan.
Angew Chem Int Ed Engl. 2008;47(34):6418-21. doi: 10.1002/anie.200801461.