Results 31 to 40 of about 14,880 (275)

Catalysis by tertiary chalcogenonium salts

open access: yesTetrahedron Chem, 2023
The synthetic utility of onium salts is widely recognized in organic chemistry. Among the wide variety of onium salt compounds, quaternary ammonium and phosphonium salts are known as representative organocatalysts.
Ken Okuno   +2 more
doaj   +1 more source

Phosphonium polymers for gene delivery [PDF]

open access: yes, 2016
Phosphonium salt-containing polymers have very recently started to emerge as attractive materials for the engineering non-viral gene delivery systems.
Abdallah   +54 more
core   +2 more sources

Dicyclohexylbis(naphthalen-1-ylmethyl)phosphonium chloride chloroform disolvate

open access: yesActa Crystallographica Section E, 2012
In the title solvated phosphonium salt, C34H40P+·Cl−·2CHCl3, the two cyclohexyl and two 1-naphthylmethyl groups at the P atom are in a distorted tetrahedral arrangement [105.26 (6)–113.35 (6)&#
Saravanan Gowrisankar   +3 more
doaj   +1 more source

Potentiometric Titration Based on the Reference Electrode Equipped with Ionic Liquid Salt Bridge — 1. Precipitation Titration of Chloride with Silver Ions in Water

open access: yesElectrochemistry, 2023
A reference electrode equipped with ionic liquid salt bridge consisting of tributyl(2-methoxyethyl)phosphonium bis(pentafluoroethanesulfonyl)amide has been employed for potentiometric precipitation titration of chloride with silver ions in water at 25 °C.
Takashi KAKIUCHI   +6 more
doaj   +1 more source

Gelled Electrolyte Containing Phosphonium Ionic Liquids for Lithium-Ion Batteries

open access: yesNanomaterials, 2018
In this work, new gelled electrolytes were prepared based on a mixture containing phosphonium ionic liquid (IL) composed of trihexyl(tetradecyl)phosphonium cation combined with bis(trifluoromethane)sulfonimide [TFSI] counter anions and lithium salt ...
Mélody Leclère   +6 more
doaj   +1 more source

Corrosion Inhibition on Mild Steel by Phosphonium Salts in 1M HNO3 Aqueous Medium [PDF]

open access: yes, 2017
The corrosion inhibition on mild steel by phosphonium salts in 1 M HNO3 medium has been investigated by weight loss and polarization techniques. The result revealed that these derivatives are excellent inhibitors.
Ahamad   +70 more
core   +1 more source

Chiral phosphonium ion-pairing catalysis: From structural innovation to asymmetric synthesis

open access: yesChemical Engineering Journal Advances
Chiral phosphonium salt catalysis has emerged as a crucial component of asymmetric ion-pairing catalysis, demonstrating growing significance in the field of asymmetric catalytic synthesis.
Wenchao Chen   +3 more
doaj   +1 more source

Crystal structure of bis(3,3-dimethyl-2-oxobutyl)diphenylphosphonium bromide chloroform monosolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title salt solvate, C24H32O2P+·Br−·CHCl3, the P atom has a distorted tetrahedral geometry, and the planes of the phenyl rings form a dihedral angle of 71.86 (14)° with one another.
Alyssa A. Kulesza   +2 more
doaj   +1 more source

Synthesis of 2,6-trans-disubstituted 5,6-dihydropyrans from (Z)-1,5-syn-endiols

open access: yesBeilstein Journal of Organic Chemistry, 2005
Certain (Z)-1,5-syn-diols 2 may be converted into 2,6-trans-5,6-dihydropyrans by using phosphonium salt 4 or phosphorane 5 as dehydrating agents. A more general four step procedure converts the (Z)-1,5-syn-endiols into enantiomeric dihydropyrans ent-3 ...
Eric M. Flamme, William R. Roush
doaj   +1 more source

Synthesis and electrochemical properties of 3,4,5-tris(chlorophenyl)-1,2-diphosphaferrocenes

open access: yesBeilstein Journal of Organic Chemistry, 2022
A novel representative of sodium 3,4,5-triaryl-1,2-diphosphacyclopentadienide containing a chloro substituent in the meta-position of the aryl groups was obtained with a high yield based on the reaction of tributyl(1,2,3-triarylcyclopropenyl)phosphonium ...
Almaz A. Zagidullin   +6 more
doaj   +1 more source

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