Results 91 to 100 of about 101,287 (245)
Natural Product Communications, 2016 Oximation of the dihydroquinopimaric acid O -cyanoethylderivative ( 2 ) via the amidoxime 3 , and cyclization with trifluoroacetic anhydride resulted in a new 1,2,4-oxadiazole diterpenoid ( 4 ).
Elena V. Tretyakova +3 more
doaj +1 more source
3-Phenyl-4-{3-[(p-tolyloxy)methyl]-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazin-6-yl}sydnone
Acta Crystallographica Section E, 2010 In the title compound (systematic name: 3-phenyl-4-{3-[(p-tolyloxy)methyl]-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazin-6-yl}-1,2,3-oxadiazol-3-ium-5-olate), C20H16N6O3S, an intramolecular C—H...O hydrogen bond generates an S(6) ring motif.
Jia Hao Goh +3 more
doaj +1 more source
, 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.
Sheng-yong Zhang (8472192) +7 more
core +1 more source
Synthesis of new bipolar host materials based on 1,2,4-oxadiazole for blue phosphorescent OLEDs
, 2014 Two novel bipolar host materials, namely 3,5-bis(4-(9H-carbazol-9-yl) phenyl)-1,2,4-oxadiazole (pCzmOXD) and 3,5-bis(3-(9H-carbazol-9-yl)phenyl)-1,2, 4-oxadiazole (mCzmOXD) were designed and synthesized, by incorporating a new block 1,2,4-oxadiazole as ...
Li, Qian +6 more
core +1 more source
International Journal of Molecular Sciences, 2019 Replacement of amide moiety with the 1,2,4-oxadiazole core in the scaffold of recently reported efflux pump inhibitors afforded a novel series of oxadiazole/2-imidazoline hybrids.
A. Shetnev +10 more
semanticscholar +1 more source
Synthesis and Synthetic Applications of 1,2,4-Oxadiazole-4-Oxides
, 2007 The first 1,2,4-oxadiazole-4-oxide was prepared by Wieland a century ago, but-this compound remained largely a chemical curiosity until very recently.
CARAMELLA, PIERLUIGI, QUADRELLI, PAOLO
core
, 2017 Two series of non-symmetrically substituted bent-core mesogens derived from the central 3,5 and 2,5 cores of the 1,2,4- and 1,3,4-oxadiazole derivatives, respectively, containing ether and ester linkage have been synthesised by several straightforward ...
Ali Hussein R. Al-Daraji (3135585) +2 more
core +1 more source
Antioxidant and Antitumor Activities of New Synthesized Aromatic C-Nucleoside Derivatives
Molecules, 2014 The carbohydrazide 1 was used as the precursor for the synthesis of a number of new aromatic C-nucleosides containing 1,3,4-oxadiazole 7, [1,3,4]oxadiazolo[2,3-a]isoindole 10b and pyrazole units 18. On the other hand, the thiosemicarbazone 20 was used as
Mohamed M. El Sadek +4 more
doaj +1 more source
HNO made-easy from photochemical cycloreversion of novel 3,5-heterocyclic disubstituted 1,2,4-oxadiazole-4-oxides [PDF]
, 2013 A variety of symmetric and asymmetric 3,5-heterocyclic disubstituted 1,2,4-oxadiazole-4-oxides have been prepared through cycloaddition of aromatic and heteroaromatic nitrile oxides to heteroaromatic amidoximes. A library of novel, fully characterized,
DONDI, DANIELE +4 more
core
, 2016 The intrinsic asymmetry of 1,2,4-oxadiazole was utilized to synthesize three isomers, DCzmOXD-1, DCzmOXD-2, and mCzmOXD, and high triplet energies over 2.80 eV made them good candidates for host materials in blue OLEDs. The best efficiencies of 23.0 cd A–
Liang-Sheng Liao (1586392) +4 more
core +1 more source