First isolation and characterization of eight regioisomers for [60]fullerene-benzene bisadducts |
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| Authors: | Nakamura Y Takano N Nishimura T Yashima E Sato M Kudo T Nishimura J |
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| Affiliation: | Department of Chemistry, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan. |
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| Abstract: | [reaction: see text]. The [2 + 2] cycloaddition between [60]fullerene and benzyne generated from 4,5-dimethoxyanthranilic acid (4) afforded bisadducts 5 along with the monoadduct. All of the eight possible regioisomers were first isolated by HPLC and then characterized on the basis of MS, NMR, UV-vis, and CD spectroscopies. |
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