Results 41 to 50 of about 308,670 (298)

A Strategy to Aminate Pyridines, Diazines, and Pharmaceuticals via Heterocyclic Phosphonium Salts. [PDF]

Org Lett, 2018
Patel C, Mohnike M, Hilton MC, McNally A.   +3 more
europepmc   +2 more sources

Spectrophotometric determination of trace quaternary phosphonium salts in water with m-nitrophenol

浙江大学学报. 农业与生命科学版, 2010
A novel method was established for spectrophotometric chromogenic reaction of m-nitrophenol with cationic surfactants to determine the trace quaternary phosphonium salts in water.
JIANG Chen-jing, WU Yu-yong, FANG Cheng-ran, HE Ruo, SHEN Dong-sheng   +4 more
doaj   +1 more source

Synthesis of quaternary aryl phosphonium salts: photoredox-mediated phosphine arylation [PDF]

, 2016
We report a synthesis method for the construction of quaternary aryl phoshonium salts at ambient temperature. The regiospecific reaction invovles the coupling of phosphines with aryl radicals derived from diaryliodonium salts under photoredox ...
A. F. Fearnley, Bayne, Bayne, Bentrude, Cano-yelo, Cano-yelo, Caputo, Cassity, Coa, Dunn, Enders, Fañanás-Mastral, Fumagalli, Gerritsma, He, He, Heng, Hoffman, Horner, Hounjet, Hwang, J. An, Kalyani, Kampmeier, Liu, M. Jackson, Malmgren, Manabe, Marcoux, Marcoux, McNulty, McNulty, McNulty, McNulty, McNulty, McNulty, Merritt, Merzougui, Muneer, Neufeldt, P. Lindovska, Perez, Prier, Ptitsyna, Pérez, Pérez, R. M. Denton, Redmund, Reichl, Rideout, Rideout, Shirakawa, Shirakawa, Smith, Sundalam, Tappe, Tobisu, Tucker, vom Stein, Wang, Werner, Xi, Xiong, Xu, Yusubov, Zhdankin, Zhu   +66 more
core   +2 more sources

Triphenylarsonium-functionalised gold nanoparticles: potential nanocarriers for intracellular therapeutics. [PDF]

, 2015
This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Two new triphenylarsonium alkylthiolate precursors, a thiosulfate zwitterion and a thioacetate salt, have been structurally characterised and their cytotoxicity evaluated ...
Ahn, Alan Reynolds, Berchel, Biswas, Biswas, Boddapati, Boddapati, Chen, Chen, Chen, Chen, David W. Allen, Gemma Brooke, Graham J. Tizzard, He, Hildebrand, Hoyle, Jesús Ojeda, Jomova, Ju-Nam, Ju-Nam, Ju-Nam, Le Gall, Lee, Malhi, Millard, Miodragović, Mudhoo, Neil A. Cross, Neil Bricklebank, Nikhil Lalwani, Picquet, Sakurai, Simon J. Coles, Swindell, Valean, Wang, Wang, Weissig, Yu-Su Chen   +39 more
core   +2 more sources

Total Synthesis of (+)‐Melonine and (+)‐N4‐Oxy Melonine Enabled by an Intramolecular Alkene Diamination Reaction

Angewandte Chemie, EarlyView.
A complexity‐generating intramolecular alkene diamination constitutes the pivotal step in the enantioselective synthesis of the title natural products featuring a strained, cage‐like pentacyclic architecture. Abstract Among more than four thousand monoterpene indole alkaloids (MIAs) isolated to date, only a few feature a 2,2,3‐trisubstituted indoline ...
Vincent Goëlo, Qian Wang, Jieping Zhu
wiley   +2 more sources

Methoxy-phenyl groups reduce the cytotoxicity and increase the aqueous solubility of phosphonium zwitterions and salts [PDF]

, 2019
The ability of phosphonium cations to act as intracellular transport vectors is well-established. Previous research has demonstrated that phosphonioalkylthiosulfate zwitterions, and -thioacetylalkylphosphonium salts are useful precursors for the ...
Allen, David, Bricklebank, Neil, Coles, Simon J, Cross, Neil, Horton, Peter N, Lalwani, Nikhil   +5 more
core   +1 more source

Candida albicans biofilm formation on peptide functionalized polydimethylsiloxane [PDF]

, 2010
In order to prevent biofilm formation by Candida albicans, several cationic peptides were covalently bound to polydimethylsiloxane (PDMS). The salivary peptide histatin 5 and two synthetic variants (Dhvar 4 and Dhvar 5) were used to prepare peptide ...
Coenye, Tom, De Prijck, Kristof, De Smet, Nele, Devreese, Bart, Nelis, Hans, Rymarczyk-Machal, Monika, Schacht, Etienne, Van Driessche, Gonzalez   +7 more
core   +1 more source

2H-Pyrrole und Pyrrole aus 3-Phenyl-2H-azirinen

CHIMIA, 1976
Vinyl-phosphonium salts [2] and phenyl-vinyl-sulfone or divinylsulfone react with benzonitril-methylides a (which are photochemically generated from 3-phenyl-2H-azirines 1 and 2) to give, via the nonisolated intermediates of type b, 2H-pyrrole 4 and the
Ulrich Widmer, Nikolas Gakis, Bruno Arnet, Heinz Heimgartner, Hans Schmid   +4 more
doaj   +1 more source

Electrochemistry of ferrocenylphosphines FcCH₂PR₂ (Fc=(η⁵-C₅H₅)Fe(η⁵-C₅H₄); R=Ph, CH₂OH and CH₂CH₂CN), and some phosphine oxide, phosphine sulfide, phosphonium and metal complex derivatives [PDF]

, 2003
Electrochemical studies of the free ferrocenylphosphine ligands FcCH₂PR₂ (Fc=(η⁵-C₅H₅)Fe(η⁵-C₅H₄); R=Ph, CH₂OH and CH₂CH₂CN) and some phosphine oxide, phosphine sulfide, phosphonium and metal derivatives are described.
Downard, Alison J., Goodwin, Nicholas J., Henderson, William   +2 more
core   +2 more sources

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

Chemical 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, Jia Zhi, Xiaoying Jiang, Renren Bai   +3 more
doaj   +1 more source