613686-10-5Relevant academic research and scientific papers
Copper pyrithione (CuPT)-catalyzed/mediated amination and thioarylation of (hetero)aryl halides: A competition
Cao, Ningtao,Song, Bao,Xie, Jianwei,Zhang, Jie
, (2021/11/08)
A facile method for the synthesis of N-arylheterocycles and di(hetero)aryl sulfides under mild condition is described. In these transformations, copper pyrithione (CuPT) was used as the copper catalyst for C─N coupling, while served as catalyst and coupled partner for C─S coupling with high yields and broad substrate tolerance. The S-arylation process was also utilized for the construction of valuable bioactive 2-sulfonylpyridine 1-oxide derivatives.
ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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Paragraph 0441; 0443, (2020/07/23)
An organic light-emitting device is provided to include: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and at least o
α-d-Galacturonic Acid as Natural Ligand for Selective Copper-Catalyzed N-Arylation of N-Containing Heterocycles
Yuan, Chunling,Zhao, Yingdai,Zheng, Li
, p. 2173 - 2180 (2019/11/25)
The first application of α-d-galacturonic acid hydrate (GalA) is reported here, as a potential O-donor ligand. The C-N couplings of N-heterocycles with aryl halides or arylboronic acids could be readily conducted and exhibited good functional group tolerance with characters of selectivity. These N-Arylazoles allow rapid access to several pharmaceutical intermediates and can be easily transformed into a variety of other interesting scaffolds as well.
Bivalent platinum complex, preparation method therefor and application of bivalent platinum complex
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Paragraph 0112; 0113; 0114; 0115, (2019/12/25)
The invention belongs to the technical field of organic electroluminescent materials and provides a bivalent platinum complex, an application thereof and an organic light emitting diode (OLED) device.The bivalent platinum complex provided by the invention
SPIRO-CONTAINING PLATINUM (II) EMITTERS WITH TUNABLE EMISSION ENERGIES AND SYNTHESES THEREOF
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Page/Page column 19, (2019/08/12)
An asymmetric tetradentate metal complex of a N^C^C^N comprising tetradentate ligand has a metal connected to binding sites which are connected to each other via three or four covalent bonds that can be either single or double bonds with bridging linkers reside between C^C and C^N moieties. These linkers result in three-dimension metal complexes with distorted square planar geometries. The four donor atoms coordinate to a metal center. Upon metal binding a 5-6-6 membered metallocycle is formed upon chelation including a first nitrogen donor bond, a first metal-carbon bond, a second metal-carbon bond, and a second nitrogen donor bond. The light emission from these metal complexes can be tuned by the ligand structure over the entire visible spectrum.
Ethylene glycol, an efficient and recoverable medium for copper-catalyzed N-arylation of diazoles under microwave irradiation
Sharifi, Ali,Ghonouei, Nima,Abaee, M. Saeed
supporting information, p. 249 - 256 (2016/03/09)
Ethylene glycol was used as an efficient and recoverable medium for the reaction of diazoles with aryl iodides and aryl bromides in the presence of CuCl2 as the catalyst and K2CO3 as the base. Consequently, imidazole, benzimidazole, and pyrazole reacted readily under microwave irradiation to give good to excellent yields of their corresponding N-arylated products in relatively short time periods. Apparently, ethylene glycol plays a dual role by activating the catalyst and also providing a homogenous medium for the processes. The reaction medium consisting of the solvent, the base, and the copper salt was recovered and reused successfully in the next several reactions.
TETRADENTATE AND OCTAHEDRAL METAL COMPLEXES CONTAINING NAPHTHYRIDINOCARBAZOLE AND ITS ANALOGUES
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Paragraph 0209; 0210, (2016/12/26)
Tetradentate and octahedral metal complexes suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.
Copper-catalyzed arylation of nitrogen heterocycles from anilines under ligand-free conditions
Toummini, Dounia,Tlili, Anis,Bergs, Julien,Ouazzani, Fouad,Taillefer, Marc
supporting information, p. 14619 - 14623 (2015/01/09)
The arylation of pyrazole and derivatives can be achieved by coupling arenediazonium species (formed in situ from anilines) by using a catalytic system that employs low-toxicity and inexpensive copper metal under very mild and ligand-free conditions (T = 20 ° C). From other nitrogen heterocycles, the presence of an additive (NBu4I) significantly improves the efficiency of the catalytic system. These results represent the first examples of C-N bond formation from arenediazonium species.
3-(Diphenylphosphino)propanoic acid: An efficient ligand for the Cu-catalyzed N-arylation of imidazoles and 1H-pyrazole with aryl halides
Liu, Ya-Shuai,Liu, Yan,Ma, Xiao-Wei,Liu, Ping,Xie, Jian-Wei,Dai, Bin
, p. 775 - 778 (2014/06/09)
3-(Diphenylphosphino)propanoic acid (L2) has proved to be an efficient ligand for the copper-catalyzed CN coupling reactions. N-arylation of imidazoles with aryl iodides catalyzed by CuCl/L2 was smoothly carried out in DMSO at 100 °C with a yield up to 98%. N-arylation of 1H-pyrazole with aryl iodides and bromides catalyzed by Cu(OAc)2/L2 in 1,4-dioxane also gave the corresponding products with yields of 40%-98%.
Ruthenium-catalyzed C-H functionalization of arylpyrazoles: Regioselective acylation with acid chlorides
Liu, Po Man,Frost, Christopher G.
supporting information, p. 5862 - 5865 (2013/12/04)
A ruthenium-catalyzed C-H acylation of arylpyrazoles with a variety of acyl chlorides is described. The acylation reaction exhibits good regioselectivity and both aromatic and aliphatic acyl chlorides can be effectively coupled to the arylpyrazoles at the
