Wang, Lei Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University ORCID
Fujii, Mayu Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
Namba, Misa Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
Yamaji, Minoru Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
2,3-Naphthalimide derivatives incorporating trifluoroacetamido (3a) and methansulfonamido (3b) functionalities at the 1-position were prepared and their intramolecular excited state proton transfer (ESIPT) fluorescence and responses to metal ions were investigated. Compound 3a displayed normal fluorescence in the amide form in toluene and MeCN and no response to metal cations in the corresponding amidate ion form. In contrast, compound 3b gave off dual emission assignable to normal and ESIPT fluorescence. Additionally, the amidate form of compound 3b displayed off-on fluorescence response to Ca2+.
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|Web of Science KeyUT|
Lei Wang, Mayu Fujii, Misa Namba, Minoru Yamaji, Hideki Okamoto, Fluorescence properties of amido-substituted 2,3-naphthalimides: Excited-state intramolecular proton transfer (ESIPT) fluorescence and responses to Ca2+ ions, Tetrahedron Letters, Volume 60, Issue 43, 2019, 151189, ISSN 0040-4039, https://doi.org/10.1016/j.tetlet.2019.151189.
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|Open Archive (publisher)||