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Synfacts 2011(8): 0848-0848  
DOI: 10.1055/s-0030-1260690
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Methanofullerenes for Improved OPVs

Contributor(s): Timothy M. Swager, Olesya Haze
Y. Zhang, Y. Matsuo*, C.-Z. Li, H. Tanaka, E. Nakamura*
The University of Tokyo, Japan
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Publication History

Publication Date:
20 July 2011 (online)

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Significance

Fullerene (1) was converted into the 1,2-dihydromethano[60]fullerene 4 in a scalable three-step synthesis. This new high-yielding and efficient route involves the addition of silylmethylmagnesium chloride followed by the oxidation of the anionic intermediate 3. The approach is general, and several examples using substituted [60]fullerenes and [70]fullerene are described.