Results 11 to 20 of about 2,267 (195)

α-Aminophosphonates, -Phosphinates, and -Phosphine Oxides as Extraction and Precipitation Agents for Rare Earth Metals, Thorium, and Uranium: A Review [PDF]

Molecules, 2022
α-Aminophosphonates, -phosphinates, and -phosphine oxides are a group of organophosphorus compounds that were investigated as extraction agents for rare earth (RE) metals and actinoids for the first time in the 1960s.
Esa Kukkonen, Emilia Josefiina Virtanen, Jani Olavi Moilanen   +2 more
doaj   +2 more sources

A Comparative Study of New Fluorescent Anthraquinone and Benzanthrone α-Aminophosphonates: Synthesis, Spectroscopy, Toxicology, X-ray Crystallography, and Microscopy of Opisthorchis felineus [PDF]

Molecules
In this research, we explore the synthesis of and characterize α-aminophosphonates derived from anthraquinone and benzanthrone, focusing on their fluorescence properties and potential applications in confocal laser scanning microscopy (CLSM).
Armands Maļeckis, Marija Cvetinska, Muza Kirjušina, Ligita Mežaraupe, Sanita Kecko, Inese Gavarāne, Vladimir Kiyan, Lyudmila Lider, Veronika Pavlova, Marina Savicka, Sergey Belyakov, Elena Kirilova   +11 more
doaj   +2 more sources

Aminophosphonates in Nanofiltration and Reverse Osmosis Permeates [PDF]

Membranes, 2021
Aminophosphonates such as aminotris(methylenephosphonic acid) (ATMP) are common constituents of antiscalants. In nanofiltration (NF) and reverse osmosis (RO) processes, ATMP prevents inorganic scaling leading to more stable membrane performance.
Ramona Kuhn, Carsten Vornholt, Volker Preuß, Isaac Mbir Bryant, Marion Martienssen   +4 more
doaj   +3 more sources

Ugi Reaction on α-Phosphorated Ketimines for the Synthesis of Tetrasubstituted α-Aminophosphonates and Their Applications as Antiproliferative Agents [PDF]

Molecules, 2021
An Ugi three-component reaction using preformed α-phosphorated N-tosyl ketimines with different isocyanides in the presence of a carboxylic acid affords tetrasubstituted α-aminophosphonates.
Adrián López-Francés, Xabier del Corte, Edorta Martínez de Marigorta, Francisco Palacios, Javier Vicario   +4 more
doaj   +4 more sources

Hydroxy- and Amino-Phosphonates and -Bisphosphonates: Synthetic Methods and Their Biological Applications [PDF]

Frontiers in Chemistry, 2022
Phosphonates and bisphosphonates are stable analogs of phosphates and pyrophosphates that are characterized by one and two carbon–phosphorus bonds, respectively.
Babak Kaboudin, Payam Daliri, Samaneh Faghih, Hesam Esfandiari   +3 more
doaj   +2 more sources

Laundry isolate Delftia sp. UBM14 capable of biodegrading industrially relevant aminophosphonates [PDF]

Microorganisms
Phosphonates such as ethylenediaminetetra (methylenephosphonic acid) (EDTMP) and aminotris (methylenephosphonic acid) (ATMP) are used every day in water treatment processes or in household products.
Benndorf, Dirk, Braun, Burga, Kaschubowski, Arne, Martienssen, Marion (Prof. Dr. rer. nat. habil.), Meißner, Karsten, Riedel, Ramona (Dr.-Ing.)   +5 more
core   +3 more sources

Ru-Catalyzed Asymmetric Transfer Hydrogenation of α-iminophosphonates: A Novel Synthetic Approach for Valuable Chiral α-Aminophosphonates. [PDF]

Chemistry
This study reports the first Ru‐catalyzed ATH of α‐iminophosphonates, enabling the efficient synthesis of chiral α‐aminophosphonates. Both acyclic and cyclic substrates are converted in high yields (up to 97%) with excellent enantioselectivities (up to >99:1), offering a practical alternative to conventional AH for accessing phosphorus‐containing ...
Plouard P, Borrel L, Butin PO, Muller P, Cherpitel R, Loiseau S, Clarion L, Virieux D, Ayad T.   +8 more
europepmc   +2 more sources

New Cytotoxic Derivatives by the Phosphorylation and Phosphinoylation of Diethyl α-Amino-α-Aryl-Methylphosphonates. [PDF]

Chemistry
In order to make available potentionally bioactive new α‐aminophosphonic derivatives, diethyl α‐amino‐α‐aryl‐methylphosphonates were phosphorylated, phosphinoylated and thiophosphinoylated with the corresponding P‐chloride. The effect of a P=O to P=S modification was evaluated by single crystal X‐ray cristallography.
Bircher M, Karaghiosoff K, Czugler M, Takács A, Kőhidai L, Drahos L, Keglevich G.   +6 more
europepmc   +2 more sources

Asymmetric Transfer Hydrogenation as a Key Step in the Synthesis of the Phosphonic Acid Analogs of Aminocarboxylic Acids. [PDF]

Chemistry, 2023
The asymmetric transfer hydrogenation (ATH) of 17 diisopropyl α‐oxophosphonates was accomplished by using a commercially available Noyori‐type catalyst. The highly enantioenriched products (ee >98 % in all cases but one) were further converted to the phosphonic acid analogs of 15 aminocarboxylic acids.
Dinhof T, Kalina T, Stanković T, Braunsteiner K, Rohrbach P, Turhan E, Gradwohl A, Königshofer A, Horak J, Pallitsch K.   +9 more
europepmc   +2 more sources

Investigation of the Anticancer Effect of α-Aminophosphonates and Arylidine Derivatives of 3-Acetyl-1-aminoquinolin-2(1H)-one on the DMBA Model of Breast Cancer in Albino Rats with In Silico Prediction of Their Thymidylate Synthase Inhibitory Effect

Molecules, 2022
Breast cancer is a major cause of death in women worldwide. In this study, 60 female rats were classified into 6 groups; negative control, α-aminophosphonates, arylidine derivatives of 3-acetyl-1-aminoquinolin-2(1H)-one, DMBA, DMBA & α-aminophosphonates,
Mohamed A. Nassan, Adil Aldhahrani, Hamada H. Amer, Ahmed Elhenawy, Ayman A. Swelum, Omar M. Ali, Yasser H. Zaki   +6 more
doaj   +1 more source