Copper-Catalyzed C−H Oxygenation of Benzoxepine-4-carboxylates: Facile Synthesis and Photophysical Properties of Naphtho[2,1-d]oxazoles and Benzo[c]phenoxazines
| العنوان: | Copper-Catalyzed C−H Oxygenation of Benzoxepine-4-carboxylates: Facile Synthesis and Photophysical Properties of Naphtho[2,1-d]oxazoles and Benzo[c]phenoxazines |
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| المؤلفون: | Kurma Siva Hariprasad, Kasagani Veera Prasad, Vaidya Jayathirtha Rao, Bhimapaka China Raju, Peethani Nagaraju, Gannerla Saidachary |
| المصدر: | Asian Journal of Organic Chemistry. 5:819-827 |
| بيانات النشر: | Wiley, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 010405 organic chemistry, Chemistry, Organic Chemistry, Nitro, Copper catalyzed, Organic chemistry, Absorption (chemistry), 010402 general chemistry, Electrochemistry, 01 natural sciences, Medicinal chemistry, Fluorescence, 0104 chemical sciences |
| الوصف: | An efficient, solvent-free, one-pot protocol was developed for the preparation of naphtho[2,1-d]oxazoles and benzo[c]phenoxazines by the C−H oxygenation of benzoxepine-4-carboxylates with benzylamines and anilines in the presence of Cu(OAc)2. The synthesis, UV/vis absorption, fluorescence emission and electrochemical properties have been studied for these heterocyclic compounds. The benzo[c]phenoxazines absorbed in the UV/vis in the range 449–461 nm and fluorescence emission in the range 562–627 nm. The nitro- and dimethyl-substituted benzo[c]phenoxazines had the most favorable fluorescence emission in these series of compounds (emission maxima at 627 and 603 nm with quantum yields Φf=0.51 and 0.37, respectively). The optical and electrochemical properties suggest that these compounds can act as electron-transporting materials for organic light-emitting diode applications. |
| تدمد: | 2193-5807 |
| DOI: | 10.1002/ajoc.201600131 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::42c417be7287025b0c26abcd313296fe https://doi.org/10.1002/ajoc.201600131 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........42c417be7287025b0c26abcd313296fe |
| قاعدة البيانات: | OpenAIRE |
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