American Chemical Society
ol9009305_si_002.cif (51.57 kB)

Efficient Cage-Opening Cascade Process for the Preparation of Water-Encapsulated [60]Fullerene Derivatives

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posted on 2009-07-02, 00:00 authored by Qianyan Zhang, Zhenshan Jia, Shuming Liu, Gang Zhang, Zuo Xiao, Dazhi Yang, Liangbing Gan, Zheming Wang, Yuliang Li
Cage-opened fullerenes with 18-membered-ring orifices have been prepared starting from fullerene-mixed peroxides. The key transformation involves a cascade sequence including a deketalization, a SN2′ epoxide opening reaction, and a formal 3,3-σ rearrangement. The 18-membered-ring orifice is big enough for water encapsulation under mild conditions. Single crystal X-ray structures were obtained for both the empty and water-encapsulated fullerene derivatives.