Results 31 to 40 of about 92,013 (336)

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

Results 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, Elvira A. Khaybrakhmanova, Tatyana V. Tyumkina   +2 more
doaj   +1 more source

Enantioselective Alkylation of Hydrophobic Vitamin B12 Bearing a Binaphthyl Moiety [PDF]

, 1992
The enantioselective alkylation of hydrophobia vitamin B12 derivatives at the β-axial site was examined in methanol with various alkyl bromides, and those B12 analogues bearing a peripheral binaphthyl moiety showed the highest S-selectivity toward ...
Hisaeda Yoshio, Kohno Hiroshi, Murakami Yukito, Ohno Teruhisa   +3 more
core   +2 more sources

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

Molecules, 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, Alexandre Desaintjean, Paul Knochel, Guillaume Lefèvre   +3 more
doaj   +1 more source

Paired electrolysis-enabled nickel-catalyzed enantioselective reductive cross-coupling between α-chloroesters and aryl bromides

Nature Communications, 2022
Precise matching of reaction rate and electric potential of electrodes in paired electrolysis is challenging. Here, the authors develop paired-electrolysis-enabled nickel-catalyzed enantioselective reductive cross-coupling of α-chloroesters and aryl ...
Dong Liu, Zhao-Ran Liu, Zhen-Hua Wang, Cong Ma, Simon Herbert, Hartmut Schirok, Tian-Sheng Mei   +6 more
doaj   +1 more source

A cooperative Pd-Cu system for direct C-H bond arylation [PDF]

, 2014
The authors are grateful to the Royal Society (University Research Fellowship to CSJC) for financial support.A novel and efficient method for C-H arylation using well-defined Pd- and Cu-NHC systems has been developed.
Cazin, Catherine S. J., Lazreg, Faima, Lesieur, Mathieu   +2 more
core   +1 more source

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

Journal 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

Molecules, 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, Alexei D. Averin, Olga K. Grigorova, Vitaly A. Roznyatovsky, Olga A. Maloshitskaya, Irina P. Beletskaya   +5 more
doaj   +1 more source

The self-trapped hole in caesium halides [PDF]

, 1977
The equilibrium lattice configuration, electronic excitation energies and activation energies for hopping motion are calculated for a self-trapped hole in simple cubic CsCl, CsBr and CsI.
MONNIER, R, SONG, KS, STONEHAM, AM
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

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

Вестник 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, V. S. Shabaev, R. E. Rzheutskaya   +2 more
doaj   +1 more source