Results 21 to 30 of about 63,808 (214)

A Family of Routes to Substituted Phenols, Including Meta-Substituted Phenols [PDF]

, 2015
A new family of routes to substituted phenols has been developed. 2-Bromo-3- methoxycyclohex-2-en-1-ones are readily deprotonated at C-6 and the resulting anions react smoothly with a variety of electrophiles; treatment with DBU in PhMe at room ...
Clive, Derrick L. J., Shao, Wenjie
core   +1 more source

Comparative characteristics of sterically hindered phenols and nitroxide radicals as stabilizers of polyethylene photodegradation

Advanced Engineering Research, 2019
Introduction. Polymeric materials (PM) are increasingly used in various industries and agriculture. Under the action of UV light, PM are destroyed. UV stabilizers are used to protect PM from photodegradation.
I. Yu. Zhukova, I. I. Kashparov, S. V. Kucherenko, E. Sh. Kagan   +3 more
doaj   +1 more source

Antimicrobial, Anticancer, and Antioxidant Activities of Maize and Clover Pollen Grains Extracts: A Comparative Study with Phytochemical Characterizations

Pharmaceuticals, 2023
The failure to treat infectious diseases due to the continual emergence of drug-resistant microbes poses a huge and serious challenge for human health globally.
Heba Barnawi, Husam Qanash, Abdu Aldarhami, Ghaida Alsaif, Bandar Alharbi, Majed N. Almashjary, Alhomidi Almotiri, Abdulrahman S. Bazaid   +7 more
doaj   +1 more source

Mediterranean Shrub Species as a Source of Biomolecules against Neurodegenerative Diseases

Molecules, 2023
Neurodegenerative diseases are associated with oxidative stress, due to an imbalance in the oxidation-reduction reactions at the cellular level. Various treatments are available to treat these diseases, although they often do not cure them and have many ...
Natividad Chaves, Laura Nogales, Ismael Montero-Fernández, José Blanco-Salas, Juan Carlos Alías   +4 more
doaj   +1 more source

Oxidation of Electron-Deficient Phenols Mediated by Hypervalent Iodine(V) Reagents: Fundamental Mechanistic Features Revealed by a DFT-Based Investigation [PDF]

, 2021
Hypervalent iodine(V) (HVI) compounds are highly efficient reagents for the double oxidative dearomatization of electron-rich phenols to o-quinones. We recently reported that an underexplored class of iodine(V) reagents possessing bidentate bipyridine ...
Sarah , Wengryniuk, Alireza, Ariafard, Brian, Yates, Mona , Jalali, Alex , Bissember   +4 more
core   +1 more source

Extra-Virgin Olive Oil Extracted Using Pulsed Electric Field Technology: Cultivar Impact on Oil Yield and Quality

Frontiers in Nutrition, 2019
The main operators of the olive oil sector are continuously involved in the development of the olive oil mechanical extraction process with the common aim of increasing both the quality and the oil extraction yield coupled with the potential enhancement ...
Gianluca Veneziani, Sonia Esposto, Agnese Taticchi, Roberto Selvaggini, Beatrice Sordini, Antonietta Lorefice, Luigi Daidone, Mauro Pagano, Roberto Tomasone, Maurizio Servili   +9 more
doaj   +1 more source

Antioxidant capacity, total phenolic, carotenoid, and vitamin C contents of five table grape varieties from Algeria and their correlations

OENO One, 2014
Aim: The aim of this work was the determination of some antioxidants (total polyphenols (TPP), total flavonoids (TF), carotenoids, vitamin C, the antioxidant capacity (AC) (reducing power) and other physicochemical parameters, such as pH, total soluble ...
Farida Derradji-Benmeziane, Rachid Djamai, Yves Cadot   +2 more
doaj   +1 more source

Apple Pomace as Valuable Food Ingredient for Enhancing Nutritional and Antioxidant Properties of Italian Salami

Antioxidants, 2022
Nowadays, food fortification with bioactive compounds deriving from agri-food waste is of great interest all over the world. In this work, apple pomace (AP), the most abundant by-product of apple juice manufacturing, was characterised by chemical ...
Luca Grispoldi, Federica Ianni, Francesca Blasi, Luna Pollini, Silvia Crotti, Deborah Cruciani, Beniamino Terzo Cenci-Goga, Lina Cossignani   +7 more
doaj   +1 more source

Direct Synthesis of Fluorescent Oxazolo-phenoxazines by Copper-Catalyzed/Hypervalent Iodine(III)-Mediated Dimerization/Cyclization of 2Benzylamino-phenols

, 2022
A dimerization/cyclization reaction of 2-benzylamino-phenols for the direct synthesis of the oxazolo-phenoxazine skeleton is reported. The reaction occurs under copper catalysis in the presence of hypervalent iodine­(III), giving selectively the 5H ...
Letizia Molteni (11486214), Gianluigi Broggini (1566244), Marta Papis (11933296), Gioele Colombo (11933299), Stefano Brenna (2055583), Donatella Nava, Egle M. Beccalli, Gioele Colombo, Francesca Foschi, Egle M. Beccalli (1566232), Leonardo Lo Presti (1367703), Camilla Loro, Stefano Brenna, Letizia Molteni, Marta Papis, Donatella Nava (2407537), Francesca Foschi (1648414), Leonardo Lo Presti, Gianluigi Broggini, Camilla Loro (8414148)   +19 more
core   +1 more source

Selective hydrodeoxygenation of lignin-derived phenols to aromatics catalyzed by Nb2O5-supported iridium [PDF]

, 2022
Here we report the first heterogeneous iridium-based catalyst (Ir@Nb2O5) able to combine full conversion in hydrodeoxygenation (HDO) of lignin-derived phenols to hydrocarbons with appreciable selectivity for aromatics.
Johanna I. S., Manegold, Gabriel, Jeantelot, Vidar R., Jensen, Morten G., Ingebrigtsen, Simen P., Følkner, Erwan, Le Roux   +5 more
core   +2 more sources