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Synfacts 2009(6): 0618-0618  
DOI: 10.1055/s-0029-1216655
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Chemistry of a Stable Singlet Biradical

Contributor(s): Timothy M. Swager, Trisha L. Andrew
S. Hiroto, N. Aratani, N. Shibata, Y. Higuchi, T. Sasamori, N. Tokitoh, H. Shinokubo*, A. Osuka*
Nagoya University, Kyoto University, University of Hyogo and the RIKEN Spring-8 Center, Hyogo, Japan
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Publikationsdatum:
25. Mai 2009 (online)

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Significance

The singlet biradical biscorrole (2) was found to undergo a nucleophilic addition with pyridine under mild conditions. The products of this reaction were isolated and characterized. The pyridination was found to proceed regioselectively to yield zwitterionic species.