859831-53-1Relevant articles and documents
CuCl-Catalyzed Hydroxylation of N-Heteroarylcarbazole Bromide: Approach for the Preparation of N-Heteroarylcarbazolyl Phenols and Its Application in the Synthesis of Phosphorescent Emitters
Li, Guijie,Zhao, Xiangdong,Fang, Kun,Li, Jian,She, Yuanbin
, p. 8634 - 8644 (2017)
An efficient and practical CuCl-catalyzed hydroxylation of N-heteroarylcarbazole bromide for the preparation of N-heteroarylcarbazolyl phenols with a broad functional group scope and yield up to 98% was developed. It was found that both the ligand and base played critical roles in the functional group transformation and that different products could be generated by changing the base for some substrates. t-BuONa was demonstrated to be a better base for the catalytic system to avoid the formation of the ether byproduct. In addition, this approach was suitable for large-scale preparation and was successfully applied in the gram-scale synthesis of phosphorescent emitters PtNON and PdNON, demonstrating its practicability in organic synthesis methodology and materials science. Furthermore, the X-ray crystal diffraction, DFT calculations, and photophysical properties were also investigated for the metal complexes.
ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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Paragraph 0401; 0402, (2019/09/20)
An organometallic compound represented by Formula 1 or 2 and an organic light-emitting device including the same.
TETRADENTATE AND OCTAHEDRAL METAL COMPLEXES CONTAINING NAPHTHYRIDINOCARBAZOLE AND ITS ANALOGUES
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Paragraph 0271; 0272, (2016/12/26)
Tetradentate and octahedral metal complexes suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.
Stable emitters
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Page/Page column 5; 37; 38, (2016/01/20)
Stable and efficient organic light-emitting diodes were prepared using tetradentate platinum-based blue and red emitters. In one example, a series of stable and efficient red phosphorescent OLEDs was fabricated employing a phenyl-pyridyl-carbazole based tetradentate cyclometalated Pt(II) complex as an emitting dopant and utilizing a commercially available host, transporting, and blocking materials. By implementing this platinum complex in electrochemically stable device architectures, long operational lifetimes were achieved with an estimated LT97 of over 600 hrs at luminance of 1000 cd/m2.
FLUORENES AND CARBAZOLES AS LIGANDS OF THE EP2 RECEPTOR
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Page/Page column 37; 43-44, (2010/11/27)
The present invention relates to carbazoles/fluorenes, to processes for their preparation and to their use for preparing pharmaceutical agents for the treatment of disorders connected to the EP2 receptor.
Design, synthesis and evaluation of carbazole derivatives as PPARα/γ dual agonists and antioxidants
Kumar, Rakesh,Ramachandran, Uma,Srinivasan, Krishnamoorthy,Ramarao, Poduri,Raichur, Suryaprakash,Chakrabarti, Ranjan
, p. 4279 - 4290 (2007/10/03)
A series of hydroxycarbazole derivatives were synthesized and evaluated for PPARα/γ dual agonist as well as antioxidant activities. While most compounds showed good antioxidant activity, some compounds were identified as potential PPARα/γ dual agonists as well. Compounds 10a and 16 were found to be active in animal studies.
DNA Strand Scissions by Hydroxamic Acids-Copper(II) Ion under Aerobic Conditions
Hashimoto, Shigeki,Yamashita, Rinichi,Nakamura, Yushin
, p. 1639 - 1642 (2007/10/02)
Carbazolyloxyacetohydroxamic acid (1), 9.9'-decamethylene-bis-carbazolyloxyacetohydroxamic acid (2), benzohydroxamic acid (3) and acetohydroxamic acid (4) without reducing agent under aerobic conditions induced Col E1 DNA strand scissions with increasing of the activities in the order 4 > 3 > 2 > 1.Inhibition experiments indicated that hydrogen peroxide and superoxide participated in the reactions, but hydroxyl radical or singlet oxygen did not.
