Photochromic fluorescent indol-3-yl-substituted maleimides

E. N. Shepelenko; N. I. Makarova; V. A. Podshibyakin; K. S. Tikhomirova; A. D. Dubonosov; A. V. Metelitsa; V. A. Bren; V. I. Minkin

doi:10.1134/S1070428017030095

Photochromic fluorescent indol-3-yl-substituted maleimides

作者: Shepelenko E.N.¹, Makarova N.I.², Podshibyakin V.A.², Tikhomirova K.S.², Dubonosov A.D.¹, Metelitsa A.V.², Bren V.A.², Minkin V.I.¹^,2
隶属关系:
1. Southern Scientific Center
2. Institute of Physical and Organic Chemistry
期: 卷 53, 编号 3 (2017)
页面: 366-370
栏目: Article
URL: https://journal-vniispk.ru/1070-4280/article/view/215900
DOI: https://doi.org/10.1134/S1070428017030095
ID: 215900

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详细

New hetarylethenes, 3-(indol-3-yl)-4-thienyl(but-1-en-1-yl)-substituted pyrrole-2,5-diones containing coumarin or fluorene substituents on the pyrrole nitrogen atom, were synthesized by reactions of furan-2,5-diones with 9H-fluoren-2-amine and 6-amino-2H-chromen-2-one. Acyclic maleimide isomers showed fluorescence with quantum yields of 0.002 to 0.072. Their irradiation with UV light generates non-fluorescing cyclic isomer. The reverse ring opening occurs in the excited state.