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Solvent and Substituent Effects on the Kinetics of Thermolysis of cis-Fused 1,2,4-Trioxanes [PDF]

open access: yesMolecules, 2001
The kinetics of the thermal decomposition reaction of cis-6-phenyl-5,6-(2-phenylpropyliden)-3,3-pentamethylene-1,2,4-trioxacyclohexane (Ia) were investigated in benzene and methanol solutions in the temperature and concentration ranges of 353.3 †...
Charles W. Jefford   +1 more
doaj   +8 more sources

Synthesis of spiroannulated and 3-arylated 1,2,4-trioxanes from mesitylol and methyl 4-hydroxytiglate by photooxygenation and peroxyacetalization [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2010
Cycloalkanones were utilized in the Lewis acid catalyzed peroxyacetalization of ß-hydroperoxy homoallylic alcohols (prepared by the ene reaction of the allylic alcohols mesitylol and methyl 4-hydroxytiglate, respectively, with singlet oxygen) to give ...
Axel G Griesbeck
exaly   +3 more sources

Synthesis, Structure and Antileishmanial Evaluation of Endoperoxide–Pyrazole Hybrids [PDF]

open access: yesMolecules, 2022
Leishmaniases are among the most impacting neglected tropical diseases. In attempts to repurpose antimalarial drugs or candidates, it was found that selected 1,2,4-trioxanes, 1,2,4,5-tetraoxanes, and pyrazole-containing chemotypes demonstrated activity ...
Patrícia S. M. Amado   +5 more
doaj   +7 more sources

Biological Evaluation in Resistant Cancer Cells and Study of Mechanism of Action of Arylvinyl-1,2,4-Trioxanes [PDF]

open access: yesPharmaceuticals, 2022
1,2,4-trioxane is a pharmacophore, which possesses a wide spectrum of biological activities, including anticancer effects. In this study, the cytotoxic effect and anticancer mechanism of action of a set of 10 selected peroxides were investigated on five ...
Jerome P. L. Ng   +10 more
doaj   +2 more sources

Photo-oxygenation of Indene and 1,2-Dihydronaphthalene: Formation of 1,2-Dioxetanes and 1,2,4-Trioxanes [PDF]

open access: yesCHIMIA, 1992
The methylene blue (MB)-sensitized photo-oxygenation of indene (1) in CH3OH gave trans-2-hydroperoxy-1-methoxyindane (9), homophthalaldehyde (4), and its cyclic acetal 8. The same reaction conducted in acetaldehyde gave only 4.
Charles W. Jefford   +3 more
doaj   +5 more sources

Lewis Acids and Heteropoly Acids in the Synthesis of Organic Peroxides. [PDF]

open access: yesPharmaceuticals (Basel), 2022
Organic peroxides are an important class of compounds for organic synthesis, pharmacological chemistry, materials science, and the polymer industry. Here, for the first time, we summarize the main achievements in the synthesis of organic peroxides by the
Yaremenko IA   +5 more
europepmc   +3 more sources

Artemisinins and synthetic peroxides as highly efficient antimalarials [PDF]

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2012
Malaria is devastating disease and global public health problem, with nearly half world population exposed to risk. Illness is caused by five Plasmodium species, P. falciparum, P. ovale, P. vivax, P. malarie and P. knowlesi, from which P.
Dejan Milos Opsenica   +1 more
doaj   +6 more sources

1,2,5,10,11,14-Hexaoxadispiro[5.2.5.2]hexadecanes: Novel Spirofused Bis-Trioxane Peroxides [PDF]

open access: yesMolecules, 2008
A set of new bis-spirofused 1,2,4-trioxanes 4a-d was obtained from the reaction of cyclohexane-1,4-dione with allylic hydroperoxides 2a-d, bearing an additional hydroxy group in the homoallylic position, by diastereoselective photooxygenation of allylic ...
Tamer T. El-Idreesy   +5 more
doaj   +2 more sources

Synthesis of five- and six-membered cyclic organic peroxides: Key transformations into peroxide ring-retaining products [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2014
The present review describes the current status of synthetic five and six-membered cyclic peroxides such as 1,2-dioxolanes, 1,2,4-trioxolanes (ozonides), 1,2-dioxanes, 1,2-dioxenes, 1,2,4-trioxanes, and 1,2,4,5-tetraoxanes.
Alexander O. Terent'ev   +3 more
doaj   +2 more sources

Solvent and Substituent Effects on the Thermolysis of Antimalarial Fluorophenyl Substituted 1,2.4-Trioxanes [PDF]

open access: yesMolecules, 2003
The kinetics and mechanism of the thermal decomposition reaction of cis-6-(4-fluoropheny1)-5,6-[2-(4-fluorophenyl)-propylidene]-3, 3-tetramethylene-1,2,4-trioxacyclo-hexane (I) were investigated separately in n-hexane and in methanol solutions over the ...
Cafferata, Lázaro F. R.   +1 more
europepmc   +9 more sources

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