24275-95-4Relevant academic research and scientific papers
Compound for organic luminescence and application thereof
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Paragraph 0029-0033, (2021/03/13)
The invention relates to a compound for organic luminescence. The structure of the compound is shown as a formula (I) in the description, wherein X is selected from one of carbonyl, oxygen atom or sulfur atom; and the formula (I) is also connected with a
Copper-catalyzed synthesis of N-aryl acridones from 2-amino benzophenones and aryl boronic acids via sequential double oxidative C–N coupling
He, Yang,Xu, Liang,Zhang, Jinli,Wei, Yu
, (2019/12/27)
Pot-economic synthesis of N-aryl acridones was performed with 2-aminobenzophenones and aryl boronic acids as starting materials. Cu-catalyzed chelation-assisted oxidative C–N cross-coupling reactions were well merged with the following intra-molecular oxidative dehydrogenative C–H amination reactions under an air atmosphere. The use of reagent capsules can further resolve the compatibility problem of reagents and simplify the operational process, providing a more straightforward access to the target products.
Mechanochromism, Twisted/Folded Structure Determination, and Derivatization of (N-Phenylfluorenylidene)acridane
Matsuo, Yutaka,Wang, Ya,Ueno, Hiroshi,Nakagawa, Takafumi,Okada, Hiroshi
supporting information, p. 8762 - 8767 (2019/05/29)
(N-Phenylfluorenylidene)acridane (Ph-FA) compounds with electron-withdrawing and -donating substituents (H, MeO, Ph, NO2, Br, F) at the para position of the phenyl group were successfully synthesized by Barton–Kellogg reactions of N-aryl thioacridones and diazofluorene. By using the substituent on the nitrogen atom to alter the electronic properties, both the folded and twisted conformers of p-NO2-C6H4-FA could be crystallographically characterized, which enabled the charge transfer from the electron-donating acridane moiety to the electron-accepting fluorenylidene moiety to be understood. Ground-state mechanochromism, thermochromism, vapochromism, and proton-induced chromism were demonstrated between the folded and twisted conformations of the conformers. Protonation and chemical oxidation of Ph-FA gave two stable acridinium compounds, namely, the fluorenylacridinium and acridinium radical cations. The present study will contribute to the development of functional dyes and organic semiconductors.
Copper-catalyzed intramolecular oxidative C-H functionalization and C-N formation of 2-aminobenzophenones: Unusual pseudo-1,2-shift of the substituent on the aryl ring
Huang, Pang-Chi,Parthasarathy, Kanniyappan,Cheng, Chien-Hong
supporting information, p. 460 - 464 (2013/02/23)
A good move: A copper-catalyzed intramolecular oxidative C-H functionalization of 2-aminobenzophenone affords two regioisomeric acridones (see scheme). The reaction involves an unusual pseudo-1,2-migration of R 2 group(s) on the arene ring (bpy=2,2-bipyridine, DMAc=dimethylacetimide). Copyright
Copper-catalyzed intramolecular direct amination of sp2 C-H bonds for the synthesis of N-aryl acridones
Zhou, Wang,Liu, Yong,Yang, Youqing,Deng, Guo-Jun
supporting information, p. 10678 - 10680 (2012/11/07)
A copper-catalyzed approach for the synthesis of N-aryl acridones via sp2 C-H bond amination using air as oxidant under neutral conditions is disclosed. This reaction not only provides a complementary method for synthesizing medicinally important acridones, but also offers a new strategy for sp2 C-H bond amination.
