Results 21 to 30 of about 31,516 (214)

Synthesis, characterization and biological activity of Hg(II), Fe(III) complexes with 1,3,4-oxadiazole, 1,2,4-triazole derivatives from L-methionine

Journal of Saudi Chemical Society, 2020
Four novel heterocyclic1,3,4-oxadiazole, 1,2,4-triazole derivatives, namely: 5-[1-amino-3-(methylsulfanyl)propyl]-1,3,4-oxadiazole-2(3H)-thione (4), 4-amino-5-[1-amino-3-(methylsulfanyl)propyl]-4H-1,2,4-triazole-3-thiol (5), 1-amino-3-[1-amino-3 ...
Khaled Briki, Adil Ali Othman, Mouna Souad Abbassi, Mokhtar Boualem Lahrech   +3 more
doaj   +1 more source

A Family of Energetic Materials Based on 1,2,4-Oxadiazole and 1,2,5-Oxadiazole Backbones With Low Insensitivity and Good Detonation Performance

Frontiers in Chemistry, 2020
Design and synthesis of new compounds with both high detonation performances and good safety properties have always been a formidable task in the field of energetic materials.
Qi Xue, Fu-qiang Bi, Jun-lin Zhang, Zi-jun Wang, Zi-jun Wang, Lian-jie Zhai, Lian-jie Zhai, Huan Huo, Bo-zhou Wang, Sheng-yong Zhang, Sheng-yong Zhang   +10 more
doaj   +1 more source

Bioisosteric replacement of central 1,2,4-oxadiazole ring of high affinity CB2 ligands by regioisomeric 1,3,4-oxadiazole ring [PDF]

, 2017
It has been reported that bioisosteric replacement of an 1,2,4-oxadiazole ring by an 1,3,4-oxadiazole ring leads to higher polarity, reduced metabolic degradation by human liver microsomes and reduced interaction with hERG channels.
Schepmann, D., Lueg, C., Corinna Lueg, Vries, H. de, Heitman, L.H., Frehland, B., Henk de Vries, Heimann, D., Wunsch, B., Laura H. Heitman, Bastian Frehland, Dominik Heimann, Bernhard Wünsch, Dirk Schepmann   +13 more
core   +2 more sources

Synthesis, Characterization and Antifungal Evaluation of 5-Substituted-4-Amino-1,2,4-Triazole-3-Thioesters

Molecules, 2011
A series of 5-substituted-4-amino-1,2,4-triazole-3-thioesters was synthesized by converting variously substituted organic acids successively into the corresponding esters, hydrazides, 5-substituted-1,3,4-oxadiazole-2-thiols, 5-substituted-1,2,4-triazole ...
Aurangzeb Hasan, Shelly Gapil, Noel Francis Thomas   +2 more
doaj   +1 more source

Synthesis of a series of novel tetra-tert-butylcalix[4]arene linked to 1,2,4-triazole and 1,3,4-oxadiazole derivatives

Acta Chimica Slovenica, 2016
A series of tetra-tert-butylcalix[4]arene linked to 1,2,4-triazole-5-thiones and 1,3,4-oxadiazole-5-thiones derivatives at lower rim were synthesized by the reaction of 1,2,4-triazole-5-thione and 1,3,4-oxadiazole-5-thione  with 5,11,17,23-tetra-tert ...
Karim Akbari Dilmaghani, Zahra Dono Ghezelbash   +1 more
doaj   +1 more source

Synthesis and Biological evalution of some substituted 2-dibenzyl amino 1,3,4-oxadiazoles , thiadiazoles and 1,2,4-triazoles [PDF]

مجلة التربية والعلم, 2013
In this paper the synthesis of some substituted 2-dibenzyl 1,3,4-oxadiazole, thiadiazole and 1,2,4-triazoles derived from dibenzyl amine is reported scheme-1.
Khalid Daoud, Shaima Ismmaeel
doaj   +1 more source

Synthesis and characterization of two 1,2,4-oxadiazole-furazan-based nitrate ester compounds as potential energetic plasticizers

FirePhysChem, 2023
Two novel energetic compounds, 3-nitroxymethyl-5-(4-nitro-furazan-3-yl)-1,2,4-oxadiazole (4) and 3-nitroxymethyl-5-(4-azido-furazan-3-yl)-1,2,4-oxadiazole (5), were synthesized.
Qi Xue, Fuqiang Bi, Junlin Zhang, Jiarong Zhang, Bozhou Wang, Minjie Wu   +5 more
doaj   +1 more source

Exploiting the energetic potential of 1,2,4-oxadiazole derivatives: combining the benefits of a 1,2,4-oxadiazole framework with various energetic functionalities [PDF]

, 2017
A series of 1,2,4-oxadiazole derived energetic compounds were synthesized and structurally characterized, some of which have the potential as melt-cast explosives or secondary explosives.
Chao Yan, Tianlin Liu, Kangcai Wang, Hongwei Yang, Guangbin Cheng, Qinghua Zhang   +5 more
core   +1 more source

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides

Angewandte Chemie, Volume 138, Issue 22, 25 May 2026.
A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu, Jan Niclas Ludwig, Patrick Wolf Antoni, David Tymann, Max Martin Hansmann   +4 more
wiley   +2 more sources

Benzyl N-{2-[5-(4-chlorophenyl)-1,2,4-oxadiazol-3-yl]propan-2-yl}carbamate

Acta Crystallographica Section E, 2011
In the title 1,2,4-oxadiazole derivative, C19H18ClN3O3, the 1,2,4-oxadiazole ring makes dihedral angles of 12.83 (8) and 4.89 (8)°, respectively, with the benzyl and 4-chlorophenyl rings, while the dihedral angle between the ...
Hoong-Kun Fun, V. Sumangala, G. K. Nagaraja, Boja Poojary, Suchada Chantrapromma   +4 more
doaj   +1 more source