- Bambusurils Bearing Nitro Groups and Their Further Modifications
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Bambusurils are recently developed neutral anion receptors that show a high affinity towards many inorganic anions, not only in organic solvents but also in water. However, the number of water-soluble bambusurils and also those bearing functional groups is very limited. In this paper we report the synthesis of four- and six-membered bambusurils containing eight and twelve nitro groups. All the nitro groups on the bambusuril portals could be transformed into amino functions, which provided the macrocycles with water solubility and allowed their further modification. For example, we have demonstrated the conversion of amino groups on the bambusurils into the corresponding urea-functionalized bambusuril derivatives. We also report the first example of a bambusuril bearing only two functional groups, which was prepared by the condensation of two different glycolurils.
- Yawer, Mirza Arfan,Sleziakova, Kristina,Pavlovec, Lukas,Sindelar, Vladimir
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- Fluorescent two-photon absorption benzothiadiazole dyes having photoreleasing quenchers
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Fluorescent two-photon absorption benzothiadiazole dye 5 provides significant fluorescence quenching by introducing nitrobenzene quencher moieties. The florescence intensity is recovered by photoreleasing of the quencher moieties upon irradiation. Copyrig
- Ishi-I, Tsutomu,Nakamura, Nami,Mine, Tomonori,Imamura, Satoru,Shigeiwa, Motoyuki,Gorohmaru, Hideki,Maeda, Shuuichi
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p. 1042 - 1043
(2010/06/17)
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