Results 31 to 40 of about 562,929 (255)

C−H Bond Activation by Dicationic Platinum(II) Complexes [PDF]

, 2007
Double protonolysis of diimine platinum dimethyls [(N-N)PtMe_2] (N-N ═ ArNC(Me)C(Me) ═ NAr) generates dicationic Pt(II) complexes that can activate a variety of C−H bonds, liberating 1 equiv of acid and forming organoplatinum species that are moderately ...
Bercaw, John E., Driver, Tom G., Labinger, Jay A., Williams, Travis J.   +3 more
core   +1 more source

Cobalt-catalyzed directed C–H alkenylation of pivalophenone N–H imine with alkenyl phosphates

Beilstein Journal of Organic Chemistry, 2018
A cobalt–N-heterocyclic carbene (NHC) catalyst efficiently promotes an ortho C–H alkenylation reaction of pivalophenone N–H imine with an alkenyl phosphate. The reaction tolerates various substituted pivalophenone N–H imines as well as cyclic and acyclic
Wengang Xu, Naohiko Yoshikai
doaj   +1 more source

Regioselective Access to Sultam Motifs through Cobalt-Catalyzed Annulation of Aryl Sulfonamides and Alkynes using an 8-Aminoquinoline Directing Group [PDF]

, 2015
The use of cobalt as catalyst in direct C[BOND]H activation protocols as a replacement for more expensive second row transition metals is currently attracting significant attention.
Ackermann, Ackermann, Ackermann, Andou, Beletskaya, Bernini, Casitas, Chen, Collins, Corbet, Daugulis, De Santis, Ding, Dong, Gensch, Godula, Grigorjeva, Grigorjeva, Grigorjeva, Guimond, He, Huestis, Hummel, Hyster, Ikemoto, Jia, Jiménez-Hopkins, Kajita, Kaneko, Larock, Lee, Li, Li, Li, Liu, Liu, Lombardino, Lyons, Ma, Majumdar, Merten, Morimoto, Mousseau, Pawar, Pham, Punji, Rakshit, Rassadin, Shah, Shi, Shilov, Shuklov, Song, Song, Stuart, Stuart, Sun, Sun, Suzuki, Tasker, Ueura, Ueura, Umeda, Wells, Wencel-Delord, Wendlandt, Wu, Wu, Wu, Wu, Wu, Yamaguchi, Yeung, Yoshino, Yu, Zhang, Zhang, Zhang, Zhao   +78 more
core   +1 more source

Efficient Dehydrogenation of Amines and Carbonyl Compounds Catalyzed by a Tetranuclear Ruthenium-μ-oxo-μ-hydroxo-hydride Complex [PDF]

, 2009
The tetranuclear ruthenium-μ-oxo-μ-hydroxo-hydride complex {[(PCy3)(CO)RuH]4(μ4-O)(μ3-OH)(μ2-OH)} (1) was found to be a highly effective catalyst for the transfer dehydrogenation of amines and carbonyl compounds. For example, the initial turnover rate of
Lee, Do W., Yi, Chae S.
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

C–H Activation via Group 8–10 Pincer Complexes: A Mechanistic Approach

Inorganics
C–H bond activation is a crucial synthetic strategy widely utilized in both academic and industrial settings. Due to the strong and kinetically inert nature of the C–H bond, its functionalization typically requires metal-based catalysts.
Juan S. Serrano-García, Andrés Amaya-Flórez, Jordi R.-Galindo, Lucero González-Sebastián, Luis Humberto Delgado-Rangel, David Morales-Morales   +5 more
doaj   +1 more source

The Activating Effect of Strong Acid for Pd-Catalyzed Directed C–H Activation by Concerted Metalation-Deprotonation Mechanism

Molecules, 2021
A computational study on the origin of the activating effect for Pd-catalyzed directed C–H activation by the concerted metalation-deprotonation (CMD) mechanism is conducted.
Heming Jiang, Tian-Yu Sun
doaj   +1 more source

Scope and Mechanistic Study of the Ruthenium-Catalyzed \u3cem\u3eortho\u3c/em\u3e-C−H Bond Activation and Cyclization Reactions of Arylamines with Terminal Alkynes [PDF]

, 2005
The cationic ruthenium hydride complex [(PCy3)2(CO)(CH3CN)2RuH]+BF4- was found to be a highly effective catalyst for the C−H bond activation reaction of arylamines and terminal alkynes.
Yi, Chae S., Yun, Young
core   +1 more source

Heterolytic Bond Activation at Gold: Evidence for Gold(III) H-B, H-Si Complexes, H-H and H-C Cleavage [PDF]

, 2019
The coordinatively unsaturated gold(III) chelate complex [(C^N-CH)Au(C6F5)]+ (1+) reacts with main group hydrides H-BPin and H-SiEt3 in dichloromethane solution at 70 °C to form the corresponding σ-complexes, which were spectroscopically characterized (C^
Beckett, Bertrand, Bhattacharjee, Blons, Bommer, Bus, Cardenas-Lizana, Carr, Chen, Claus, Comas-Vives, Comas-Vives, Corey, Corma, Corma, Corma, Corma, Debono, Dobrott, Fiorio, Fiorio, Fürstner, Hashmi, Hertz, Hierso, Hopkinson, Joost, Joost, Keane, Kidonakis, Lancaster, Leyva, Leyva-Pérez, Li, Lv, Malta, Manzoli, McEwan, Miró, Nuss, Ohnishi, Pan, Pan, Raubenheimer, Rocchigiani, Rocchigiani, Rocchigiani, Rocchigiani, Roşca, Saridakis, Satoh, Schmidbaur, Serna, Silverwood, Stephan, Takale, Vilhanova, Yang, Zou   +58 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source