Tao, Li-Ming; Liu, Wen-Qi; Zhou, Yun; Li, Ai-Tao
Journal of Chemical Research, 2012 , vol. 36, # 11 p. 644 - 646

Park, Kyong-Hwi; Daves, G. Doyle
Journal of Organic Chemistry, 1980 , vol. 45, # 5 p. 780 - 785

Shevchenko; Karpov; Zakurdaev; Nenajdenko; Balenkova
Chemistry of Heterocyclic Compounds, 2000 , vol. 36, # 2 p. 137 - 143

Berti, Corrado; Colonna, Martino; Greci, Lucedio; Marchetti, Leonardo; Perkins, M. John
Journal of the Chemical Society, Chemical Communications, 1981 , # 14 p. 694 - 695