Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2018, Issue 7, Pages 869-873Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201701386
Keywords
Functional organic materials; Heterocycles; Electrochemistry; Photophysical properties; Polycycles
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Funding
- National Foundation of Natural Science in China [21272145, 21572124, 21572122]
- Natural Science Basic Research Plan in Shaanxi Province of China [2016ZDJC-03]
- Fundamental Research Funds for the Central Universities [GK261001095, GK201603033]
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New -extended triazacoronene derivatives containing three peri-benzopyrano extensions were successfully synthesized through tandem triflic acid catalyzed threefold Pictet-Spengler cyclization and K2CO3-catalyzed ipso-aromatic substitution in one pot. The structure was verified by X-ray diffraction analysis and was found to form a sandwich-type trimer in the crystalline state. The -extended triazacoronenes showed reasonable solubility, high thermal stability, and remarkably repeatable electroluminescent emissions.
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