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The reaction of C60 with 2,6-dimethoxyanthracene in dichlorobenzene at 200°C gives the 1:1 Diels-Alder adduct in 20% isolated yield. 2,6-Dimethoxyanthracene was used as a directing group for regioselective bisaddition to C60 in the nucleophilic cyclopropanations. Compared to bisaddition without the directing group, the yields of cis-isomers increased significantly.
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Wilson et al. (1995) studied this question.
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