Results 61 to 70 of about 7,111 (212)

Alkene Hydrogenation by a Cationic, Nine‐Coordinate Molybdenum(VI) Pentahydride Catalyst

Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
While late 3d metals dominate efforts to replace precious metals in homogeneous hydrogenation, molybdenum has remained largely ignored. This work reveals that a nine‐coordinate pentahydrido molybdenum complex can hydrogenate a broad range of alkenes efficiently, demonstrating that early‐metal polyhydrides can serve as genuine catalysts rather than mere
Arno Estival, Michel Sigrist, Nicolas Queyriaux, Jorge J. Cabrera‐Trujillo, Nina Durvin, Marie‐Christine Boegli, Laure Vendier, Mary Grellier, Karinne Miqueu, Antoine Simonneau   +9 more
wiley   +1 more source

Association Between Nitric Oxide, Oxidative Stress, Eryptosis, Red Blood Cell Microparticles, and Vascular Function in Sickle Cell Anemia

Frontiers in Immunology, 2020
Chronic hemolysis, enhanced oxidative stress, and decreased nitric oxide (NO) bioavailability promote vasculopathy in sickle cell anemia (SCA). Oxidative stress and NO are known to modulate eryptosis in healthy red blood cells (RBCs); however, their role
Elie Nader, Elie Nader, Marc Romana, Marc Romana, Marc Romana, Nicolas Guillot, Romain Fort, Romain Fort, Romain Fort, Emeric Stauffer, Emeric Stauffer, Emeric Stauffer, Nathalie Lemonne, Yohann Garnier, Yohann Garnier, Yohann Garnier, Sarah Chambers Skinner, Sarah Chambers Skinner, Maryse Etienne-Julan, Mélanie Robert, Alexandra Gauthier, Alexandra Gauthier, Giovanna Cannas, Giovanna Cannas, Sophie Antoine-Jonville, Benoît Tressières, Marie-Dominique Hardy-Dessources, Marie-Dominique Hardy-Dessources, Marie-Dominique Hardy-Dessources, Yves Bertrand, Cyril Martin, Cyril Martin, Céline Renoux, Céline Renoux, Céline Renoux, Philippe Joly, Philippe Joly, Philippe Joly, Marijke Grau, Philippe Connes, Philippe Connes, Philippe Connes   +41 more
doaj   +1 more source

Seaweed‐Derived Proteolytic Extracts as Natural Interfacial Stabilizers for Oxidatively Sensitive DHA‐Rich Oil‐in‐Water Emulsions

European Journal of Lipid Science and Technology, Volume 128, Issue 8, August 2026.
Red seaweed extracts have potential to protect DHA‐rich emulsions against oxidation while maintaining their physical stability. Their combined antioxidant and interfacial properties make them promising clean‐label ingredients for omega‐3‐enriched foods.
Sakhi Ghelichi, Behdad Shokrollahi Yancheshmeh, Mona Hajfathalian, Seyed Hossein Helalat, Charlotte Jacobsen   +4 more
wiley   +1 more source

White tea aqueous extract counteracts cumene hydroperoxide-induced oxidative damage in human sperm: a comparative study with L-ascorbic acid [PDF]

Journal of Men's Health
Background: Oxidative stress (OS) damages sperm by overwhelming antioxidant defences with excess free radicals, damaging seminal parameters and contributing to male infertility.
Ndivhuho B. Takalani, Thomas K. Monsees, Ralf Henkel, Chinyerum S. Opuwari   +3 more
doaj   +1 more source

Polyesterase activity and thermostability of carboxylesterases from Thermoleophilum album YS‐3

The FEBS Journal, Volume 293, Issue 15, Page 4724-4743, August 2026.
Three novel α/β‐hydrolases from thermophilic bacterium Thermoleophilum album display carboxylesterase and polyesterase activity. These enzymes hydrolyse PET, PLA and PCL both at high and moderate temperatures. TA21 shows superior activity, efficiently converting MHET to terephthalic acid. Structural features underlying substrate binding highlight their
Tatyana N. Chernikova, Anna N. Khusnutdinova, Hairong Ma, Manuel Ferrer, Olga V. Golyshina, Alexander F. Yakunin, Peter N. Golyshin   +6 more
wiley   +1 more source

Copper mediated epoxidation of high oleic natural oils with a cumene-O-2 system

, 2015
The epoxidation of methyl oleate or high oleic FAMEs from different vegetable oils was carried out in a one-pot reaction over supported copper catalysts by using cumene as oxygen carrier.
Ravasio Nicoletta, Dworakowska Sylwia, Scotti Nicola, Bogdal Dariusz, Evangelisti Claudio, Psaro Rinaldo, Zaccheria Federica   +6 more
core   +1 more source

Cumene Contamination in Groundwater: Observed Concentrations, Evaluation of Remediation by Sulfate Enhanced Bioremediation (SEB), and Public Health Issues

, 2020
Isopropylbenzene (cumene) is commonly encountered in groundwater at petroleum release sites due to its natural occurrence in crude oil and historical use as a fuel additive.
Lauren Redfern, Douglas Covert, Christopher Teaf, Peter R. Michael, Thomas M. Missimer, John P. Herman   +5 more
core   +1 more source

Synthesis of 2‐Aza‐Bicyclo[4.3.0]nonane Derivatives Related to the Camporidines via Intramolecular [3+2]‐Cycloaddition

European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher, Tobias Wilczek, Nora Katharina Korber, Jörg-Martin Neudörfl, Bernd Goldfuss, Hans-Günther Schmalz   +5 more
wiley   +1 more source

Copper Complexes with Arylated Triethylenetetramine Ligands: Reactivity Toward Dioxygen and Peroxides

European Journal of Inorganic Chemistry, Volume 29, Issue 17, 17 June 2026.
Here, we describe new Cu(I)/Cu(II) complexes based on arylated tren ligands and investigate their reactivity toward O2 and peroxides. Low‐temperature–stopped flow studies revealed the formation of transient copper–oxygen species, including superoxido, hydroperoxido, and alkylperoxido intermediates.
Chiara Eleonora Campi, Christian Würtele, Siegfried Schindler   +2 more
wiley   +1 more source

From Citrus to Cymene: Understanding the Hydrothermal Conversion of Limonene

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
When life gives you limonene… Hydrothermal conversion and pyrolysis of limonene give two distinct sets of products, arising from differing reaction cascades. While p‐cymene dominates in the presence of water, indicative of an isomerisation/aromatisation pathway, pyrolysis favours cracking and loss of carbon affording an m‐xylene rich aromatic mix.
Jack Steel, Alexander K. L. Yuen, Alejandro Montoya, Christopher Barnett, Anthony F. Masters, Thomas Maschmeyer   +5 more
wiley   +1 more source