Results 51 to 60 of about 2,267 (195)

Clinical and metabolic effects of aminophosphonate therapy in children with heart rhythm disturbances

open access: yesБюллетень сибирской медицины, 2017
The aim of the survey is to summarize and assess a number of studies that examined the clinical and metabolic effects of aminophosphonates, particularly dimephosphon, which possess antioxidant and membrane-stabilizing effects.
Olga V. Senatorova   +3 more
doaj   +1 more source

Michael addition of P-nucleophiles to azoalkenes provides simple access to phosphine oxides bearing an alkylhydrazone moiety

open access: yesFrontiers in Chemistry, 2023
β-Hydrazonophosphine oxides are precursors of useful organophosphorus compounds, including phosphorylated N-heterocycles, α-aminophosphonates, and vinylphosphonates.
Alexandr O. Kokuev   +1 more
doaj   +1 more source

Modelling of Lewis-Acid Catalyzed Ring Opening of Oxanorbornenes in the Synthesis of Azaheterocyclic Phosphonates [PDF]

open access: yes, 2010
Since the discovery of the biological activity of aminophosphonates, research started on the synthesis of more constraint azaheterocyclic phosphonates. We developed a route via an intramolecular Diels-Alder reaction towards α-aminophosphonates 1.
Claeys, Diederica   +3 more
core   +1 more source

λ5-Phosphorus-Containing α-Diazo Compounds (PCDCs): a valuable tool for accessing phosphorus-functionalized molecules [PDF]

open access: yes, 2016
The compounds characterized by the presence of a λ5-phosphorus functionality at the α-position with respect to the diazo moiety, here referred to as λ5-phosphorus-containing α-diazo compounds (PCDCs), represent a vast class of extremely versatile ...
Marinozzi, Maura   +2 more
core   +2 more sources

Production of alpha-aminophosphonates

open access: yesRevista dos Trabalhos de Iniciação Científica da UNICAMP, 2019
The production of alpha-aminophosphonate compounds was carried out by homogeneous catalysis using acetic acid, aldehydes, benzyl carbamate and trimethylphosphite or triphenylphosphite. This synthesis process provided alpha-aminophosphonates 2a-f in chemical yields of 50-60%.
José Augustos Rosário Rodrigues   +3 more
openaire   +2 more sources

Hydrophosphonylation of Nanoparticle Schiff Bases as a Mean for Preparation of Aminophosphonate-Functionalized Nanoparticles

open access: yesMolecules, 2013
The development of nanotechnology is responsible for an increase in the achievements in medical diagnostics and in the preparation of new therapeutic vehicles.
Pawel Plucinski   +2 more
doaj   +1 more source

Cleavage of the Oxanorbornene Oxygen Bridge with Lewis Acids: Computation and Experiment [PDF]

open access: yes, 2009
Since the discovery of the biological activity of aminophosphonates, research started on the synthesis of more constraint azaheterocyclic phosphonates. We developed a route via an intramolecular Diels-Alder reaction towards α-aminophosphonates 1. [1] The
Claeys, Diederica   +6 more
core   +1 more source

How to Track Mechanochemical Reactions in Resonant Acoustic Mixers by in Situ Raman Spectroscopy

open access: yesChemistry – A European Journal, Volume 31, Issue 48, August 26, 2025.
We define a practical operational window for in situ Raman monitoring in resonant acoustic mixing (RAM), a milling media‐free alternative to ball milling. By optimizing key parameters, including vessel design, filling degree, and acceleration, we establish conditions that enable robust spectral acquisition across various mechanochemical transformations.
Steffi Krause Hinojosa   +4 more
wiley   +1 more source

A Highly Efficient Bismuth Salts-Catalyzed Route for the Synthesis of Alpha-Aminophosphonates [PDF]

open access: yes, 2010
A convenient synthesis of different types of α-amino phosphonates via one-pot solvent-free three component reactions of aldehydes, amines and phosphites catalyzed by bismuth salts has been investigated.
Bandyopadhyay, Debasish   +3 more
core   +3 more sources

Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates

open access: yesChemCatChem, Volume 17, Issue 15, August 7, 2025.
The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell   +3 more
wiley   +1 more source

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