ESIPT-mediated photocycloadditions of 3-hydroxyquinolinones: development of a fluorescence quenching assay for reaction screening |
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| Authors: | Xia Bing Gerard Baudouin Solano Danielle M Wan Jiandi Jones Guilford Porco John A |
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| Affiliation: | Department of Chemistry, Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States. |
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| Abstract: | Irradiation of 1,2-dimethyl-3-hydroxyquinolinone (DMQ) leads to excited state intramolecular proton transfer (ESIPT) generating a 3-oxidoquinolinium species which undergoes [3 + 2] photocycloaddition with dipolarophiles. A parallel, fluorescence quenching assay using a microplate format has been developed to evaluate fluorescence quenching of this species with a range of dipolarophiles. |
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