Results 31 to 40 of about 101,287 (245)
To explore novel pesticidal lead compounds with potential activity, a series of new benzamide compounds substituted with 1,2,4-oxadiazole-linked pyrazole were designed and synthesized based on the active substructure splice principle.
Sen Yang (88300) +17 more
core +1 more source
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 +3 more
doaj +1 more source
Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides
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 +4 more
wiley +2 more sources
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 +2 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]
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
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 +1 more
doaj +1 more source
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 +5 more
doaj +1 more source
Benzyl N-{2-[5-(4-chlorophenyl)-1,2,4-oxadiazol-3-yl]propan-2-yl}carbamate
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 +4 more
doaj +1 more source
Synthesis of 2-(3-chloro-4-nitro-1-benzothien-2-yl)-1,3,4-oxadiazole-1,3,4-thiadiazole and 5-(3-chloro-4-nitro-1-benzothien-2-yl)-4H-1,2,4-triazole-3-thiol [PDF]
In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazole and 1,2,4-triazole is reported. 3-chloro-4-nitro-2-chloro carbonyl benzo [b] thiophene(1) was synthesized from 2-nitrocinnamic acid by its reaction with thionyl chloride ...
Khalid M. Daoud +2 more
doaj +1 more source
Metal mediated coupling of isocyanides with substituted N-(pyridine-2-yl) ureas was first used to incorporate privileged biological motifs into platinum metal complexes.
Kirill K. Geyl +7 more
doaj +1 more source

