Regio- and stereo-selective intermolecular [2+2] cycloaddition of allenol esters with C leading to alkylidenecyclobutane-annulated fullerenes.
作者信息
Ueda Mitsuhiro, Sakaguchi Tsukasa, Hayama Miho, Nakagawa Takafumi, Matsuo Yutaka, Munechika Aiko, Yoshida Shunsuke, Yasuda Hiroshi, Ryu Ilhyong
机构信息
Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
出版信息
Chem Commun (Camb). 2016 Nov 1;52(89):13175-13178. doi: 10.1039/c6cc07320d.
The intermolecular [2+2] cycloaddition of allenol esters, which were in situ generated by Pt-catalyzed 1,3-acyloxy migration of propargylic esters, with C proceeded regio- and stereo-selectively to give a novel class of alkylidenecyclobutane-annulated fullerenes. The cyclobutane-annulated fullerene derivatives have high-lying LUMO levels, which gave a high open-circuit voltage in organic solar cell applications. The observed high electron mobility provided a good fill factor compared with the PCBM-based devices.
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