Results 21 to 30 of about 1,022,586 (173)
Milestones in microwave-assisted organophosphorus chemistry
Phosphorus, Sulfur and Silicon and the Related Elements, 2016 Our recent results in the field of microwave (MW)-assisted organophosphorus syntheses, especially regarding esterifications, condensations, substitutions and additions are surveyed. Beside making organic chemical reactions more efficient, it was possible
György Keglevich +2 more
exaly +2 more sources
Solvent-Controlled Chemoselectivity in Brønsted Acidic Deep Eutectic Mixtures: A Metal-Free One-Pot Cascade Meyer-Schuster/C-P Bond Formation. [PDF]
ChemSusChemBrønsted Acidic Deep Eutectic Solvents (BADESs, acting as solvent, promoter, and chemoselectivity controller) based on choline chloride (ChCl) and p‐toluenesulfonic acid (p‐TSA·H2O) enable one‐pot cascade, metal‐free Meyer‐Schuster/C‐P (and C‐Cl) tandem process. Variations in the ChCl:p‐TSA·H2O ratios switches chemoselectivity, affording α‐hydroxy or α‐
Morís-Menéndez G +4 more
europepmc +2 more sources
The Impact of Microwaves on Organophosphorus Chemistry
Chemical Record, 2019 György Keglevich
exaly +2 more sources
Organophosphorus Chemistry: Synthesis of New Phosphonic Acid Derivatives Bearing a Triazole Moiety
ECSOC 2022, 2022 : A series of new 1,2,3-triazolylphosphonates were synthesized through multicomponent alkyne-azide 1,3-dipolar cycloaddition catalyzed by copper nanoparticles on activated carbon.
Esteban E. Bjerg +4 more
semanticscholar +1 more source
Life, 2023 The in-fall of meteorites and interstellar dust particles during the Hadean–Archean heavy bombardment may have provided the early Earth with various reduced oxidation state phosphorus compounds and minerals, including phosphite (HPO32−)([Pi(III)]).
Maheen Gull +4 more
semanticscholar +1 more source
Chemistry, Metabolism and Neurotoxicity of Organophosphorus Insecticides: A Review
Nature Environment and Pollution Technology, 2023 Organophosphorus compounds (OPs) are phosphoric acid derivatives represented by the formula (R2XP=O/S), R as organic groups; however, they need not contain a direct carbon-phosphorus bond.
Ashutosh Singh +8 more
semanticscholar +1 more source
Molecules, 2023 The review presents extensive data (from the author’s work and the literature) on the stereochemical structure of functionalized organophosphorus azoles (pyrroles, pyrazoles, imidazoles and benzazoles) and related compounds, using multinuclear 1H, 13C ...
L. Larina
semanticscholar +1 more source
Angewandte Chemie, EarlyView.An efficient, enantiodivergent synthesis of phosphorylated oxindoles with quaternary stereocenters is achieved via a nickel‐catalyzed intermolecular Heck‐phosphorylation cascade. Employing a single chiral catalyst, either product enantiomer is selectively accessed simply by changing the alkene leaving group. DFT calculations trace this stereodivergence
Haimeng Zhu +4 more
wiley +2 more sources
Angewandte Chemie, EarlyView.Photochemically generated phosphoryl radicals from iminyl phosphines enable strain‐release addition to azabicyclobutanes, providing access to elusive N‐phosphoryl azetidines. Combined experimental, computational, and EPR studies reveal an unconventional water‐assisted photoredox pathway.
Chandu G. Krishnan +4 more
wiley +2 more sources