Results 11 to 20 of about 14,880 (275)

Activation of Cyanate Anions by Phosphine Radical Cations Enables Formal Hydrocarbamoylation of Alkenes. [PDF]

open access: yesAngew Chem Int Ed Engl
A photocatalytic formal hydrocarbamoylation reaction that employs a cyanate anion as the C1 source and provides N‐acyl iminophosphorane products from activated alkenes is described. Mechanistic investigations suggest generation of a phosphoranyl radical by addition of the cyanate anion to a phosphine radical cation, which enables the delivery of the ...
Vojáčková P, Studer A.
europepmc   +3 more sources

Asymmetric Synthesis of Contact Sex Pheromone of Tetropium fuscum and Its Enantiomer

open access: yesMolecules, 2022
Tetropium fuscum is a harmful forest pest and attacks spruces. The contact sex pheromone of this pest, (S)-11-methyl-heptacosane, and its enantiomer were synthesized via Evans’ chiral auxiliaries.
Xueyang Wang   +5 more
doaj   +1 more source

Hand-holding and releasing between the anion and cation to change their macroscopic behavior in water

open access: yesGreen Energy & Environment, 2019
Despite the similarity of ionic liquid and zwitterion, their some properties such as conductivity and hydrophobicity are different. Here we developed a novel phosphonium salt having a dynamic covalent bond between anion and cation, enabling reversible ...
Kosuke Kuroda   +2 more
doaj   +1 more source

Rasta resin-PPh3BnCl and its use in chromatography-free carbonyl cyanosilylation reactions [PDF]

open access: yes, 2011
Rasta resin-PPhnCl, a new heterogeneous polystyrene-based phosphonium salt, has been synthesized and used to catalyze cyanosilylation reactions of aldehydes and ketones.
Teng, Y, Toy, PH
core   +1 more source

Detailed studying of the spectrum of antimicrobial activity of several new condensed polynuclear arens

open access: yesZaporožskij Medicinskij Žurnal, 2017
Uncontrolled use of antimicrobial drugs leads to the selection and spread of resistant strains of microorganisms. Рhosphonium compounds and their derivatives have been chosen as very perspective during searching of new highly active antimicrobial and ...
A. V. Gumenna   +4 more
doaj   +1 more source

A COMPARATIVE ELECTROCHEMICAL STUDY ON CORROSION INHIBITION OF IRON BY SYNTHESISED METHYL TRIPHENYLPHOSPHONIUM IODIDE IN ACID MEDIA

open access: yesJournal of Fundamental and Applied Sciences, 2018
The present work is aimed mainly to synthesize a phosphonuim salt, methyl triphenylphosphonuim iodide, and evaluate inhibitive effect against carbon steel corrosion in aerated 1 M HCl solutions.
H. Zerrouki   +3 more
doaj   +1 more source

New stable phosphorus ylide (p-tolyl)(3)P = CHCOC6H4 (p-CN) and its metal complexes : crystal and molecular structure, theoretical study and antibacterial investigation

open access: yes, 2020
A new stable phosphorus ylide (p-tolyl)(3)P = CHCOC6H4(p-CN) (Y) was synthesized and a series of novel complexes based on metalated phosphorus ylides were prepared through the reaction of (p-tolyl)(3)P = CHCOC6H4(p-CN) with mercury(II) halides, AgNO3 and
Bayat, Mehdi   +5 more
core   +1 more source

Transport of Zn(II), Fe(II), Fe(III) across polymer inclusion membranes (PIM) and flat sheet supported liquid membranes (SLM) containing phosphonium ionic liquids as metal ion carriers [PDF]

open access: yes, 2016
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Separation Science and Technology on 18/04/2016, available online: http://www.tandfonline.com/doi/full/10.1080/01496395.2016.1174265In this work transport of Zn(II), Fe ...
Baczynska, Monika   +5 more
core   +2 more sources

Crystal structure of (n-butyl)[2-(2,6-dimethoxyphenyl)-6-methylphenyl](2-methoxyphenyl)phosphonium chloride monohydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title hydrated salt, C26H32O3P+·Cl−·H2O, contains four different substituents (H, alkyl, aryl, and biaryl) on the P atom. The P—H hydrogen atom of the phosphonium ion was located in a difference Fourier map and refined without imposing additional ...
Ge Feng   +2 more
doaj   +1 more source

Spontaneous dehydrocoupling in peri-substituted phosphine-borane adducts [PDF]

open access: yes, 2016
This work was financially supported by the EPSRC and COST action CM1302 SIPs.Bis(borane) adducts Acenap(PiPr2·BH3)(PRH·BH3) (Acenap = acenaphthene-5,6-diyl; 4a, R = Ph; 4b, R = ferrocenyl, Fc; 4c, R = H) were synthesised by the reaction of excess H3B ...
Cordes, David Bradford   +6 more
core   +2 more sources

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