Results 31 to 40 of about 43,175 (307)

Reinvestigation of 2,2,6,6-tetramethylpiperidine-1-oxoammonium mono- and tribromide: From old compounds to new findings

open access: yesResults in Chemistry, 2021
The preparation and characteristics of 2,2,6,6-tetramethylpiperidine-1-oxoammonium bromides, old compounds with promising perspectives for use in modern energy storage devices, were reinvestigated.
Irina Y. Ponedel'kina   +2 more
doaj   +1 more source

Visible-light promoted atom transfer radical addition-elimination (ATRE) reaction for the synthesis of fluoroalkylated alkenes using DMA as electron-donor [PDF]

open access: yes, 2020
Here, we describe a mild, catalyst-free and operationally-simple strategy for the direct fluoroalkylation of olefins driven by the photochemical activity of an electron donor-acceptor (EDA) complex between DMA and fluoroalkyl iodides.
Gu, Jiwei   +5 more
core   +2 more sources

Iron-Catalyzed Cross-Coupling of Bis-(aryl)manganese Nucleophiles with Alkenyl Halides: Optimization and Mechanistic Investigations

open access: yesMolecules, 2020
Various substituted bis-(aryl)manganese species were prepared from aryl bromides by one-pot insertion of magnesium turnings in the presence of LiCl and in situ trans-metalation with MnCl2 in THF at −5 °C within 2 h.
Lidie Rousseau   +3 more
doaj   +1 more source

Crystalline structure and thermotropic behavior of alkyltrimethylphosphonium amphiphiles [PDF]

open access: yes, 2017
Quaternary organophosphonium salts bearing long alkyl chains are cationic surfactants of interest owing to their physical and biological properties.
Gamarra Montes, Ana   +3 more
core   +2 more sources

Synthesis of benzocycloalkene derivatives via Pd-catalyzed one-pot two-step reactions of benzocyclic ketones, tosylhydrazide with aryl bromides

open access: yesJournal of Saudi Chemical Society, 2018
A new method for the synthesis of benzocycloalkene derivatives is described, through the palladium-catalyzed one-pot two-step reactions of benzocyclic ketones, tosylhydrazide with aryl bromides.
Zhenze Sun, Ping Liu, Bin Dai
doaj   +1 more source

Cu(I)- and Pd(0)-Catalyzed Arylation of Oxadiamines with Fluorinated Halogenobenzenes: Comparison of Efficiency

open access: yesMolecules, 2020
The comparison of the possibilities of Pd- and Cu-catalyzed amination reactions using fluorine-containing aryl bromides and iodides with oxadiamines to produce their N,N′-diaryl derivatives was carried out.
Maria S. Lyakhovich   +5 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Gold-Catalyzed Intramolecular Aminoarylation of Alkenes: C-C Bond Formation through Bimolecular Reductive Elimination [PDF]

open access: yes, 2010
Gold-ilocks and the 3 mol % catalyst: Bimetallic gold bromides allow the room temperature aminoarylation of unactivated terminal olefins with aryl boronic acids using Selectfluor as an oxidant.
Benitez, Diego   +6 more
core   +1 more source

Pseudohyperchloremia in a patient taking bromine-containing drug: a clinical case

open access: yesВестник анестезиологии и реаниматологии
The development of pseudohyperchloremia in bromine poisoning has been described in several clinical cases, as well as in the veterinary literature. Among the side effects of bromides, the likelihood of developing such condition has not been described. We
V. A. Mazurok   +2 more
doaj   +1 more source

Photocatalyic Appel reaction enabled by copper-based complexes in continuous flow

open access: yesBeilstein Journal of Organic Chemistry, 2018
A copper-based photocatalyst, Cu(tmp)(BINAP)BF4, was found to be active in a photoredox Appel-type conversion of alcohols to bromides. The catalyst was identified from a screening of 50 complexes and promoted the transformation of primary and secondary ...
Clémentine Minozzi   +3 more
doaj   +1 more source

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