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A rare and exclusive endoperoxide photoproduct derived from a thiacalixarene crown-shaped derivative bearing a 9,10-substituted anthracene moiety
journal contributionposted on 16.05.2016, 11:55 by Jiang-Lin Zhao, Chong Wu, Hirotsugu Tomiyasu, Xi Zeng, Mark ElsegoodMark Elsegood, Carl Redshaw, Takehiko Yamato
A rare and exclusive endoperoxide photoproduct was quantitatively obtained from a thiacalixarene crown-shaped derivative upon irradiation at λ=365 nm; the structure was unambiguously confirmed by ¹H/¹³C NMR spectroscopy and X-ray crystallography. The prerequisites for the formation of the endoperoxide photoproduct have also been discussed. Furthermore, the photochemical reaction rate could be greatly enhanced in the presence of the thiacalixarene platform because it served as a host to capture oxygen.
We would like to thank the OTEC at Saga University and the International Cooperation Projects of Guizhou Province (No. 20137005) for financial support. The EPSRC is thanked for a travel grant (to CR).