Results 11 to 20 of about 25,451 (309)

Worldwide Variations in Fluoride Content in Beverages for Infants

Children, 2023
In situations where breastfeeding is impractical, milk formulas have emerged as the primary choice for infant nutrition. Numerous global studies have scrutinized the fluoride content in these formulas, uncovering fluctuations in fluoride levels directly ...
Eleonor Velez-León, Edisson-Mauricio Pacheco-Quito, Mario Díaz-Dosque, Daniela Tobar-Almache   +3 more
doaj   +1 more source

Visible-light induced transition-metal and photosensitizer-free conversion of aldehydes to acyl fluorides under mild conditions

Green Synthesis and Catalysis, 2022
Acyl fluorides are powerful synthons for acylation with wide application in the synthesis of valued compounds, especially peptides. Herein, a practical and catalyst-free method for the synthesis of acyl fluorides from aldehydes via C(sp2)–H fluorination ...
Yatao Lang, Xinlong Han, Xiangjun Peng, Zhong Zheng, Chaojun Li, Huiying Zeng   +5 more
doaj   +1 more source

Photochemical synthesis of acyl fluorides using copper-catalyzed fluorocarbonylation of alkyl iodides [PDF]

, 2023
Acyl fluorides are important reagents in organic synthesis due to their unique balance between reactivity and stability. Here, we report a copper-catalyzed carbonylative coupling strategy to synthesize acyl fluorides under photoirradiation. Various alkyl
Neal, Mankad, Pinku, Tung, Pinku Tung, Neal Mankad   +3 more
core   +1 more source

Preparation of a chromium carbon coating on 316L by a disproportionation reaction in molten salts and its corrosion resistance in molten fluorides

Electrochemistry Communications, 2022
Molten fluorides have been widely used in specific nuclear reprocessing and molten salt reactors due to their unique pyrophysical and pyrochemical properties.
Jiajie Wu, Yanli Wang
doaj   +1 more source

FeO(OH)@C‐Catalyzed Selective Hydrazine Substitution of p‐Nitro‐Aryl Fluorides and their Application for the Synthesis of Phthalazinones

ChemistryOpen, 2022
An efficient hydrazine substitution of p‐nitro‐aryl fluorides with hydrazine hydrates catalyzed by FeO(OH)@C nanoparticles is described. This hydrazine substitutions of p‐nitro‐aryl fluorides bearing electron‐withdrawing groups proceeded efficiently with
Dingzhong Li, Wensheng Zhang, Dr. Longzhi Zhu, Prof. Dr. Shuang‐Feng Yin, Prof. Dr. Nobuaki Kambe, Prof. Dr. Renhua Qiu   +5 more
doaj   +1 more source

Electroreductive hydroxy fluorosulfonylation of alkenes

Nature Communications, 2023
An electroreductive strategy for radical hydroxyl fluorosulfonylation of alkenes with sulfuryl chlorofluoride and molecular oxygen from air is described.
Qingyuan Feng, Tianyu He, Shencheng Qian, Peng Xu, Saihu Liao, Shenlin Huang   +5 more
doaj   +1 more source

Enantioselective Lewis Base Catalyzed Phosphonyldifluoromethylation of Allylic Fluorides Using C-Silyl Latent Pronucleophile [PDF]

, 2020
The first enantioselective phosphonyldifluoromethylation is enabled by the use of diethyl (difluoro(trimethylsilyl)methyl)pho-sphonate reagent as a latent pronuclephile in Lewis base catalyzed substitution of allylic fluorides.
Markus, Lange, You, Zi, Ivan, Vilotijevic   +2 more
core   +1 more source

Selective Chemical Filters for VOF₃: Tailoring MgF₂ Filter Selectivity through Surface Chemistry

Surfaces, 2023
In order to synthesize chemical filters for the selective removal of volatile fluorides, commercial magnesium fluoride MgF2 with high specific surface area (HSA) was investigated.
Laurent Jouffret, Jean-Michel Hiltbrunner, Elodie Petit, Ania Selmi, Bertrand Morel, Marc Dubois   +5 more
doaj   +1 more source

Solubility of calcium and strontium fluorides in a sodium nitrate melt and choosing a crucible material for working with their solution melts

Конденсированные среды и межфазные границы, 2023
Sodium nitrate is a promising medium for the preparation of nanoparticles of some inorganic fluorides and for studying low-temperature phase equilibria in fluoride systems.
Irina I. Buchinskaya, Victoria Al. Ivchenko   +1 more
doaj   +1 more source

Accumulation of fluorides by plants of Bidens tripartita L. species on the territories with endemic fluorine deficit

Біологічні студії, 2017
The influence of edaphic and geographic factors on accumulation of fluorides by the plants of the species growing on the territory with deficit of fluorine was studied.
O. O. Perepelytsia, O. I. Smetanjuk, K. P. Kupchanko   +2 more
doaj   +1 more source