4931-20-8Relevant academic research and scientific papers
Synthetic method 1, 2 and 4 - triazole compound
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Paragraph 0038-0041, (2021/12/07)
The invention discloses 1. 2,4 - Triazole compound synthesis method belongs to the technical field of synthesis of triazole compounds. After the reaction is finished, the reaction is carried out under the heating condition, and the target product 1, 2 and
Trichloroisocyanuric acid-mediated synthesis of 1,5-fused 1,2,4-triazoles from N-heteroaryl benzamidines via intramolecular oxidative N–N bond formation
Bhatt, Ashish,Singh, Rajesh K.,Sarma, Bhupendra K.,Kant, Ravi
supporting information, (2019/08/13)
A convenient synthesis of 1,5-fused 1,2,4-triazoles from readily available N-heteroaryl benzamidines is reported. The reaction is efficiently promoted by trichloroisocyanuric acid to afford the desired products, mostly in high yields and in relatively sho
A Convenient Synthesis of 1,5-Fused 1,2,4-Triazoles from N-Arylamidines via Chloramine-T Mediated Intramolecular Oxidative N-N Bond Formation
Bhatt, Ashish,Kant, Ravi,Sarma, Bhupendra K.,Singh, Rajesh K.
, p. 3883 - 3890 (2019/10/11)
A convenient synthesis of 1,5-fused 1,2,4-triazoles from readily available N-arylamidines is reported. The reaction is efficiently promoted by chloramine-T to afford the desired products mostly in high yields and in relatively short time, through direct m
Intramolecular electrochemical dehydrogenative N-N bond formation for the synthesis of 1,2,4-triazolo[1,5-a] pyridines
Li, Yong,Ye, Zenghui,Chen, Na,Chen, Zhenkun,Zhang, Fengzhi
supporting information, p. 4035 - 4039 (2019/08/07)
A metal- and oxidant-free intramolecular dehydrogenative N-N bond formation has been developed under mild and scalable electrolytic conditions. Various valuable 1,2,4-triazolo[1,5-a]pyridines were synthesized efficiently from the readily available N-(2-pyridyl)amidines. The reactions were conducted in a simple undivided cell under constant current conditions with nBu4NBr as both the redox mediator and the electrolyte. This protocol was applied to the efficient synthesis of key intermediates for anti-diabetic compounds.
Heterogeneous Copper(I)-Catalyzed Cascade Addition-Oxidative Cyclization of Nitriles with 2-Aminopyridines or Amidines: Efficient and Practical Synthesis of 1,2,4-Triazoles
Xia, Jianhui,Huang, Xue,Cai, Mingzhong
, p. 2014 - 2022 (2019/04/26)
The heterogeneous cascade addition-oxidative cyclization of nitriles with 2-aminopyridines or amidines was achieved in 1,2-dichlorobenzene or DMSO at 120-130 °C by using a 1,10-phenanthroline-functionalized MCM-41-supported copper(I) complex [Phen-MCM-41-
I2/KI-Mediated Oxidative N-N Bond Formation for the Synthesis of 1,5-Fused 1,2,4-Triazoles from N -Aryl Amidines
Song, Lina,Tian, Xianhai,Lv, Zhigang,Li, Ertong,Wu, Jie,Liu, Yangxue,Yu, Wenquan,Chang, Junbiao
, p. 7219 - 7225 (2015/07/28)
An I2/KI-mediated oxidative N-N bond formation reaction is described. This new and environmentally benign approach allows for the convenient synthesis of a variety of 1,2,4-triazolo[1,5-a]pyridines and other 1,5-fused 1,2,4-triazoles from readi
PhI(OCOCF3)2-mediated intramolecular oxidative N-N bond formation: Metal-free synthesis of 1,2,4-triazolo[1,5-a]pyridines
Zheng, Zisheng,Ma, Shuangyu,Tang, Linlin,Zhang-Negrerie, Daisy,Du, Yunfei,Zhao, Kang
, p. 4687 - 4693 (2014/06/09)
The biologically important 1,2,4-triazolo[1,5-a]pyridines were readily synthesized from N-(pyridin-2-yl)benzimidamides via phenyliodine bis(trifluoroacetate)-mediated intramolecular annulation. This novel strategy allows for the convenient construction of a 1,2,4-triazolo[1,5-a]pyridine skeleton through direct metal-free oxidative N-N bond formation, featuring a short reaction time and high reaction yields.
An efficient and recyclable heterogeneous catalytic system for the synthesis of 1,2,4-triazoles using air as the oxidant
Meng, Xu,Yu, Chaoying,Zhao, Peiqing
, p. 8612 - 8616 (2014/03/21)
Copper-zinc supported on Al2O3-TiO2 was found as a simple and efficient heterogeneous catalyst for the oxidative synthesis of 1,2,4-triazole derivatives using air as the green oxidant under ligand-, base- and additive-free conditions. The heterogeneous reactions carried out smoothly with a large range of substrates, including NO2-, vinyl-, pyrimidine- and imidazole-contained starting materials, and provided corresponding triazoles in moderate to excellent yields with low catalyst loading (1.6 mol%). Furthermore, the catalyst can be simply recycled many times without significant loss in catalytic activity. The Royal Society of Chemistry.
Synthesis and antitumor activities of 2-(substituted)phenyl-1,2,4- triazolo[1,5-a]pyridines
Zhang, Guolin,Hu, Yongzhou
, p. 919 - 922 (2008/03/29)
(Chemical Equation Presented) Twenty-three 2-(substituted)phenyl-1,2,4- triazolo[1,5-a]pyridines have been synthesized by cyclo-additison reaction between N-amino methylpyridinium mesitylenesulfonates and substituted benzonitriles under the presence of po
