Results 21 to 30 of about 20,271 (220)

Synthesis of Mixed Arylalkyl Tertiary Phosphines via the Grignard Approach

open access: yesMolecules, 2022
Trialkyl and triaryl phosphines are important classes of ligands in the field of catalysis and materials research. The wide usability of these low-valent phosphines has led to the design and development of new synthesis routes for a variety of phosphines.
Ashanul Haque   +4 more
doaj   +1 more source

A theoretical quantum study of the electronic properties of mentoxy dichloro phosphorous (C10H19OPCl2) [PDF]

open access: yes, 2018
Indexación: Scopus.A theoretical quantum study of the organophosphorus compound with formula C10H19OPCl2 (MEPCL2) was carried out. The results of the calculations show excellent agreement between experimental and computed frequencies evaluated at the ...
Candia, L.G.   +5 more
core   +2 more sources

Self-assembly of a columnar polymeric calcium phosphinate derived from camphene [PDF]

open access: yes, 1995
(2,2-Dimethylbicyclo[2.2.1] hept-3-ylmethyl)phosphinic acid (RPO₂H₂), readily prepared from camphene and hypophosphorous acid, formed a polymeric calcium salt [{Ca(RPO₂H) ₂ (RPO₂H₂)(H₂O)}n], with both terminal and triply bridging phosphinate groups, and ...
Henderson, William   +3 more
core   +2 more sources

Heterologous screening of hybridomas for the development of broad-specific monoclonal antibodies against deoxynivalenol and its analogues [PDF]

open access: yes, 2014
Hapten heterology was introduced into the steps of hybridoma selection for the development of monoclonal antibodies (MAbs) against deoxynivalenol (DON).
Bracke, Marc   +7 more
core   +1 more source

The bis(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments

open access: yesInorganics, 2021
Diaryl substituted phosphorus (III) compounds are commonly used motifs in synthesis. Although the basic synthetic routes to these molecules starting from PCl3 are well reported, sterically hindered aryl substituents can be difficult to introduce ...
Jonas Hoffmann   +3 more
doaj   +1 more source

Organophosphorus Azoles Incorporating a Tetra-, Penta-, and Hexacoordinated Phosphorus Atom: NMR Spectroscopy and Quantum Chemistry

open access: yesMolecules, 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 ...
Lyudmila Larina
doaj   +1 more source

Homolytic substitution at phosphorus for C–P bond formation in organic synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2013
Organophosphorus compounds are important in organic chemistry. This review article covers emerging, powerful synthetic approaches to organophosphorus compounds by homolytic substitution at phosphorus with a carbon-centered radical. Phosphination reagents
Hideki Yorimitsu
doaj   +1 more source

Assessment of the Equilibrium Constants of Mixed Complexes of Rare Earth Elements with Acidic (Chelating) and Organophosphorus Ligands

open access: yesSeparations, 2022
A survey of the experimental equilibrium constants in solution for the mixed complexes of 4f ions with acidic (chelating) and O-donor organophosphorus ligands published in the period between 1954 and 2022 is presented.
Maria Atanassova
doaj   +1 more source

Atmospheric pressure gas chromatography-time-of-flight-mass spectrometry (APGC-ToF-MS) for the determination of regulated and emerging contaminants in aqueous samples after stir bar sorptive extraction (SBSE) [PDF]

open access: yes, 2014
This work presents the development, optimization and validation of a multi-residue method for the simultaneous determination of 102 contaminants, including fragrances, UV filters, repellents, endocrine disruptors, biocides, polycyclic aromatic ...
Arbulu   +38 more
core   +2 more sources

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

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