Buckybowls of C70 fragment having two alkoxy groups were synthesized and their structural and optical properties were investigated by single crystal X-ray analysis and UV-vis spectroscopy. In the synthesis of dioxole derivative 5b, the regio isomer 5c was also produced. The yield of 5c was increased by increasing the reaction temperature, indicating that the rearrangement might involve the equilibrium between the Pd(IV) intermediates through the C-H bond activation.
Keywords: buckybowl; C70; rearrangement through C-H bond activation
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Yakiyama, Y.; Hishikawa, S.; Sakurai, H. Beilstein Arch. 2020, 202018. doi:10.3762/bxiv.2020.18.v1
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