Results 31 to 40 of about 2,325,545 (220)

Esterase 2 as a Fluorescent Biosensor for the Detection of Organophosphorus Compounds: Docking and Electronic Insights from Molecular Dynamics [PDF]

open access: yes, 2019
Organophosphorus compounds (OP) are mainly used in agriculture as pesticides. Unfortunately, each year many rural workers die intoxicated by those compounds. Sometimes the diagnosis of the exact molecule that caused the intoxication can be tardy. In this
Tanos C.C., França   +2 more
core   +1 more source

1-(N-Acylamino)alkyltriarylphosphonium Salts with Weakened Cα-P+ Bond Strength—Synthetic Applications

open access: yesMolecules, 2018
The α-amidoalkylating properties of 1-(N-acylamino)alkyltriarylphosphonium salts with weakened Cα-P+ bond strength are discussed and examined.
Jakub Adamek   +4 more
doaj   +1 more source

‘User-friendly’ primary phosphines and an arsine: synthesis and characterization of new air-stable ligands incorporating the ferrocenyl group [PDF]

open access: yes, 2002
Reaction of FcCH₂CH₂P(O)(OH)₂ or FcCH₂P(O)(OH)(OEt) [Fc=Fe(η⁵-C₅H₄)(η⁵-C₅H₅)] with excess CH₂N₂ followed by reduction with Me₃SiCl–LiAlH₄ gives the air-stable primary phosphines FcCH₂CH₂PH₂ and the previously reported analogue FcCH₂PH₂ in high yields ...
Alley, Steven R., Henderson, William
core   +1 more source

Zero-field NMR J-Spectroscopy of Organophosphorus Compounds [PDF]

open access: yes, 2020
In this paper, we report the results of theoretical and experimental studies on basic organophosphorus compounds using zero-field NMR, where spin dynamics are investigated in the absence of a magnetic field with the dominant heteronuclear J-coupling. We
Piotr, Put   +3 more
core   +2 more sources

The Backbone of Success of P,N-Hybrid Ligands: Some Recent Developments

open access: yesMolecules, 2022
Organophosphorus ligands are an invaluable family of compounds that continue to underpin important roles in disciplines such as coordination chemistry and catalysis.
Martin B. Smith
doaj   +1 more source

Organophosphorus Chemistry: Synthesis of New Phosphonic Acid Derivatives Bearing a Triazole Moiety

open access: yesChemistry Proceedings, 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 Bjerg   +4 more
doaj   +1 more source

Multicomponent reactions: A simple and efficient route to heterocyclic phosphonates

open access: yesBeilstein Journal of Organic Chemistry, 2016
Multicomponent reactions (MCRs) are one of the most important processes for the preparation of highly functionalized organic compounds in modern synthetic chemistry. As shown in this review, they play an important role in organophosphorus chemistry where
Mohammad Haji
doaj   +1 more source

Solvent and solvation effects on reactivities and mechanisms of phospho group transfers from phosphate and phosphinate esters to nucleophiles

open access: yesFrontiers in Chemistry, 2023
Organophosphorus esters fulfil many industrial, agricultural, and household roles. Nature has deployed phosphates and their related anhydrides as energy carriers and reservoirs, as constituents of genetic materials in the form of DNA and RNA, and as ...
Ikenna Onyido   +3 more
doaj   +1 more source

Gene Expression Modifications by Temperature-Toxicants Interactions in Caenorhabditis elegans [PDF]

open access: yes, 2011
Although organophosphorus pesticides (OP) share a common mode of action, there is increased awareness that they elicit a diverse range of gene expression responses.
Vinuela Rodriguez, A.   +14 more
core   +1 more source

Stoichiometric and Catalytic Synthesis of Alkynylphosphines

open access: yesMolecules, 2012
Alkynylphosphines or their borane complexes are available either through C–P bond forming reactions or through modification of the phosphorus or the alkynyl function of various alkynyl phosphorus derivatives.
Annie-Claude Gaumont   +3 more
doaj   +1 more source

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