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Updated: Aug 9, 2026

Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Convergent synthesis of a polyfunctionalized fullerene by regioselective five-fold addition of a functionalized
Yu-Wu Zhong1, Yutaka Matsuo, Eiichi Nakamura
1Nakamura Functional Carbon Cluster Project, ERATO, Japan Science and Technology Agency (JST), The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Abstract:
[reaction: see text] A method for one-step preparation of polyfunctionalized fullerene derivatives by regioselective penta-addition of an organocopper reagent is described. A functionalized aryl iodide is first converted to the corresponding Grignard reagent and then to a copper reagent and finally is allowed to react with C(60). The method allows introduction of five functional groups to the C(60) skeleton in a convergent manner. The shuttlecock-like molecules crystallize into a columnar packing structure.
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