Results 31 to 40 of about 25,994 (307)

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

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

About the Rare-Earth Metal(III) Bromide Oxoarsenates(III) RE₅Br₃[AsO₃]₄ with A- (RE = La and Ce) or B-Type Structure (RE = Pr, Nd, Sm–Tb) and RE₃Br₂[AsO₃][As₂O₅] (RE = Y, Dy–Yb)

Solids
The monoclinic rare-earth metal(III) bromide oxoarsenates(III) RE5Br3[AsO3]4 of the A-type (RE = La and Ce) crystallize in the space group C2/c with the lattice parameters a = 1834.67(9) pm, b = 553.41(3) pm, c = 1732.16(9) pm and β = 107.380(3)° for ...
Ralf J. C. Locke, Florian Ledderboge, Felix C. Goerigk, Frank C. Zimmer, Thomas Schleid   +4 more
doaj   +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

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

Molecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang, Hyung Seok Kim, Geum Ok Baek, Moon Gyeong Yoon, Su In Lee, Jee‐Yeong Jeong, Ji Eun Han, Soon Sun Kim, Jae Youn Cheong, Jung Woo Eun   +9 more
wiley   +1 more source

Palladium-Catalyzed Dehalogenation of Benzofuran Bromides

, 2015
Various benzofuran bromides were dehalogenated using the palladium catalyst and phosphine ligands in the present of 5 equiv water. This set up a new and efficient protocol for the palladium-catalyzed dehalogenation of benzofuran bromides, which could ...
Zhengrong Shen (684998), Yewei Yang (598873), Zhen Ma (281909), Zunyuan Wang (684996), Wenhai Huang (311756), Meihao Liang (684997)   +5 more
core   +1 more source

Ruthenium-Catalyzed Heck-Type Alkenylation of Alkyl Bromides

, 2019
The complex [Cp*RuCl­(PPh3)2] displays a high catalytic activity for the Heck-type alkenylation of alkyl bromides in the first example using this metal under thermal conditions.
José María Muñoz-Molina (2221306), Pedro J. Pérez (1621264)   +1 more
core   +2 more sources

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

Beilstein 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, Jean-Christophe Grenier-Petel, Shawn Parisien-Collette, Shawn K. Collins   +3 more
doaj   +1 more source