4-Amino-1,2,4-triazoles-3-thiones and 1,3,4-oxadiazoles-2-thiones·palladium(II) recoverable complexes as catalysts in the sustainable Suzuki-Miyaura cross-coupling reaction
作者:Manel Chehrouri、Cristina Moreno-Cabrerizo、Adil A. Othman、Ihssene Chabour、Marcos Ferrándiz-Saperas、Inmaculada Sempere、H. Ali Döndaş、M. de Gracia Retamosa、José M. Sansano
DOI:10.1016/j.jorganchem.2020.121353
日期:2020.9
The Suzuki-Miyaura cross-coupling reaction using 4-amino-1,2,4-triazoles and 1,3,4-oxadiazoles-2-thiones·palladium (II) is studied. The reaction is optimized and the most appropriate catalytic complex is tested with several aryl halides, boronic acids in an environmentally benign solvent system (H2O/EtOH). The recovery of the catalytic species is also surveyed because of the nature of the employed
研究了使用4-氨基-1,2,4-三唑和1,3,4-恶二唑-2-硫酮·钯(II)的Suzuki-Miyaura交叉偶联反应。优化了反应,并在环境友好的溶剂系统(H 2 O / EtOH)中,使用几种芳基卤化物,硼酸测试了最合适的催化配合物。由于所用溶剂的性质,还调查了催化物质的回收率。按照标准条件有效地进行多米诺骨牌加工。分析了配体的几个表面参数,并将所得值外推至不溶性钯催化剂。
Microwave irradiated synthesis of Schiff bases of 4-(arylideneamino)-5-alkyl-2,4- dihydro-1,2,4-triazole-3-thione containing 1,2,4-triazole segment
作者:Akhgar, Mohammad Reza、Ghazanfari, Dadkhoda、Ghodratbeigi, Mohsen、Shirmohammadi, Mahdi、Souzangarzadeh, Saeid
DOI:10.3906/kim-2105-39
日期:——
Novel compounds based on the 1,2,4-triazole skeleton were synthesized. A class of 4-amino-5-alkyl-4H-1,2,4-triazole-3- thione created by reaction of thiocarbohydrazide with long-chain aliphatic carboxylic acids, and then the Schiff bases were obtained in the media of heat and microwave waves, in the presence and the absence of a catalyst. Their chemical structures were assayed by elemental analysis, also device spectroscopic methods.
The Effect of Non Ionic Surfactants Containing Triazole, Thiadiazole and Oxadiazole as Inhibitors of the Corrosion of Carbon Steel in 1M Hydrochloric Acid
作者:M. Sobhi、R. El‐sayed、M. Abdallah
DOI:10.1007/s11743-013-1468-y
日期:2013.11
In the present investigation novel nonionic surfactants were synthesized, characterized and tested as inhibitors of the corrosion of carbonsteel in 1M HCl solution. The inhibition action of these surfactants was studied by weight loss, galvanostatic polarization and electrochemical impedance spectroscopy. The adsorption of the inhibitors was well described by the Langmuir adsorption isotherm and the
The present study deals with the optimization of some novel heterocyclic compounds containing two biological scaffolds such as long alkyl/alkenyl side chain of fatty acids and five-membered azoles named as 1,3,4-oxadiazole, 1,2,4-triazole and 1,3,4-thiadiazoles as antidepressant agents. In-silico docking studies have been carried out for the tested compounds into the crystal structure of human mono