Controllable Direction of Porphyrin Derivatives in Two Cyclodextrin Cavities
EurJOC_2018-18_2138.pdf 1.37 MB
Porphyrin-trimethyl-β-cyclodextrin (TMe-β-CDx) complexes have pseudorotaxane structures in which two mesophenyl and/or pyridyl moieties penetrate the upper rim of two TMe-β-CDx molecules. Porphyrin derivatives with one to three pyridyl moieties at meso-positions formed complexes with TMe-β-CDx in which penetration of the upper rim of the two TMe-β-CDxs by the pyridyl moieties was minimized. In contrast, in TMe-β-CDx complexes formed with porphyrin derivatives with two 2-methoxyphenyl moieties and two pyridyl moieties, the pyridyl moieties penetrated the upper rim of the two molecules because steric hindrance prevented penetration by the 2-methoxyphenyl moieties.
This work was supported by a JSPS KAKENHI Grant-in-Aid for Scientific Research (B) (Grant No. JP16H04133), a Grant-in-Aid for Challenging Exploratory Research (Grant No. JP16K13982), and the Electric Technology Research Foundation of Chugoku.
European Journal of Organic Chemistry
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This is the accepted version of the following article: B. Horiguchi, T. Nakaya, M. Ueda, K. Sugikawa, T. Mizuta, T. Haino, N. Kawata, A. Ikeda, Controllable Direction of Porphyrin Derivatives in Two Cyclodextrin Cavities, Eur. J. Org. Chem., 2018, 2138–2143, which has been published in final form at http://doi.org/10.1002/ejoc.201800433. This article may be used for non-commercial purposes in accordance with Wiley Self-Archiving Policy.
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