68377-33-3Relevant academic research and scientific papers
Nucleophilic Aromatic Substitution by Paired Electrosynthesis: Reactions of Methoxy Arenes with 1H-Tetrazoles
Hu, Kai,Niyazymbetov, Murat E.,Evans, Denis H.
, p. 7027 - 7030 (1995)
Nucleophilic substitution reactions on 1,4-dimethoxybenzene and 1,3,5-trimethoxybenzene by the anions of 1H-tetrazole, 1,2,4-triazole and 5-phenyl-1H-tetrazole have been carried out effectively by paired electrosynthesis.An undivided cell with platinum an
Preparation method of diarylamine compound
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Paragraph 0070; 0071; 0072, (2019/04/26)
The invention relates to a preparation method of a diarylamine compound. Specifically, under the catalysis of cuprous oxide supported by chitosan, the arylation reaction used for a nitrogen-containingheterocyclic compound is achieved, and the corresponding diarylamine compound is obtained. The preparation method of the diarylamine compound has the advantages that the process conditions are simple, the yield is good, the operability is strong, and the functional group tolerance is wide.
Regioselective Ortho Amination of an Aromatic C-H Bond by Trifluoroacetic Acid via Electrochemistry
Wang, Jing-Hao,Lei, Tao,Nan, Xiao-Lei,Wu, Hao-Lin,Li, Xu-Bing,Chen, Bin,Tung, Chen-Ho,Wu, Li-Zhu
supporting information, p. 5581 - 5585 (2019/08/01)
A trifluoroacetic acid-facilitated ortho amination of alkoxyl arene has been established via anodic oxidation in an undivided cell. In the absence of any additional metal or oxidant reagents, a series of aromatic and heteroaromatic amine derivatives have
A Multicomponent Electrosynthesis of 1,5-Disubstituted and 1-Aryl 1,2,4-Triazoles
Yang, Na,Yuan, Gaoqing
, p. 11963 - 11969 (2018/09/25)
A novel electrochemical route has been developed for the synthesis of 1,5-disubstituted and 1-aryl 1,2,4-triazoles from aryl hydrazines, paraformaldehyde, NH4OAc, and alcohols. In this multicomponent reaction system, alcohols act as solvents as well as reactants and NH4OAc is used as the nitrogen source. With the assistance of reactive iodide radical or I2 and NH3 electrogenerated in situ, this process could effectively avoid the use of strong oxidants and transition-metal catalysts and be smoothly carried out at room temperature to give a wide array of 1,2,4-triazole derivatives in good to high yields. Preliminary studies reveal that the reaction mechanism involves a radical process.
Magnetically recoverable copper nanorods and their catalytic activity in Ullmann cross-coupling reaction
Rajabzadeh, Maryam,Eshghi, Hossein,Khalifeh, Reza,Bakavoli, Mehdi
, (2017/06/21)
A novel polydentate ligand supported on Fe3O4@SiO2 was designed and demonstrated for the synthesis of Cu nanorods. The Fe3O4@SiO2/EP.EN.EG@Cu was characterized using X-ray diffraction, ther
Copper(I) Oxide/N,N′-Bis[(2-furyl)methyl]oxalamide-Catalyzed Coupling of (Hetero)aryl Halides and Nitrogen Heterocycles at Low Catalytic Loading
Pawar, Govind Goroba,Wu, Haibo,De, Subhadip,Ma, Dawei
supporting information, p. 1631 - 1636 (2017/05/22)
An easily prepared oxalic diamide is a powerful ligand for the copper-catalyzed coupling of aryl halides with nitrogen heterocycles. Only 1–2 mol% each of copper(I) oxide and N,N′-bis[(2-furyl)methyl]oxalamide (BFMO) are needed to form N-arylation products under mild conditions. More than 10 different types of nitrogen heterocycles are compatible with these conditions, thereby giving the corresponding N-arylation products. (Figure presented.).
Efficient and recyclable copper-based MOF-catalyzed N-arylation of N-containing heterocycles with aryliodides
Li, Zihao,Meng, Fei,Zhang, Jie,Xie, Jianwei,Dai, Bin
supporting information, p. 10861 - 10865 (2016/12/06)
Copper-based MOF-199 was used as an efficient heterogeneous catalyst to catalyze cross-coupling reactions between N-containing heterocycles and aryliodides with high yields. The catalyst can be easily separated from the reaction mixture, and can be reused at least 5 times without significantly decreasing the activity. The XRD results showed that the crystallinity and structure of MOF-199 can be maintained well during the coupling reaction.
N-terminal strategy (N1-N4) toward high performance liquid crystal materials
Hong, Fengying,Xia, Zhengce,Zhu, Dezhao,Wu, Hongxiang,Liu, Jianhui,Zeng, Zhuo
supporting information, p. 1285 - 1292 (2017/02/15)
Liquid crystal materials have a variety of applications in many fields such as display techniques as well as photonics and optics. However, only few design principles have been disclosed on liquid crystal materials with different N-heterocycles as the terminal groups, which hinder the development of the heterocyclic liquid crystals. Here, a strategy of molecular design for N-heterocyclic liquid crystal materials is reported. On the basis of this strategy, a series of convenient N-heterocycles such as pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, 1,2,3,4-tetrazole were applied to synthesize the novel liquid crystals. Most of them have proved to exhibit good mesomorphic behaviors which make them excellent components in the mixture of the LCDs materials. The simple attachment of N-heterocyclic units to the liquid crystal molecules through a mild reaction condition will provide a good prospect for the design of N-heterocyclic liquid crystals.
PHOTOREDOX-CATALYZED DIRECT C-H FUNCTIONALIZATION OF ARENES
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Paragraph 00378; 00379, (2017/01/31)
The invention generally relates to methods of making substituted arenes via direct C-H amination. More specifically, methods of making para- and ortho-substituted arenes via direct C-H amination are disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
N-Arylation of Heterocycles Promoted by Cyclen Derivatives
Zhang, Bao-Hua,Shi, Lan-Xiang,Liu, Si-Jie,Guo, Rui-Xia
, p. 1234 - 1239 (2015/08/06)
An efficient copper-catalyzed N-arylation reactions of imidazole, indole, and triazole with aryl or heteroaryl halides using cyclen derivatives as efficient organic base and ligand at moderate temperature have been investigated. The cross-couplings procee
