Publications associées à Élimination réductrice

Bimetallic Oxidative Addition in Nickel-Catalyzed Alkyl-Aryl Kumada Coupling Reactions

Xile Hu, Matthew Wodrich, Jan Breitenfeld

The mechanism of alkylaryl Kumada coupling catalyzed by the nickel pincer complex Nickamine was studied. Experiments using radical-probe substrates and DFT calculations established a bimetallic oxidative addition mechanism. Kinetic measurements showed that ...

American Chemical Society2014

Mechanistic Study on the Palladium(II)-Catalyzed Synthesis of 2,3-Disubstituted Indoles Under Aerobic Conditions: Anion Effects and the Development of a Low-Catalyst-Loading Process

Qian Wang, Jieping Zhu, Bo Yao

As a result of detailed mechanistic and kinetic studies, we have proposed that PdX2-catalyzed oxidative coupling of o-alkynylanilines 1 with terminal alkynes 2 under aerobic conditions is initiated by aminopalladation of 1 followed by ligand exchange of th ...

Wiley-Blackwell2014

Anionic Bipyridyl Ligands for Applications in Metallasupramolecular Chemistry

Rosario Scopelliti, Kay Severin, Mathieu Jérémie Marmier, Clément Schouwey, Mirela Pascu

The facile synthesis of anionic bipyridyl ligands with dinuclear clathrochelate cores is described. These metalloligands can be obtained in high yields by the reactions of M(ClO4)(2)(H2O)(6) (M: Zn, Mn, or Co) with 4-pyridylboronic acid and 2,6-diformyl-4- ...

Wiley-Blackwell2014

How to increase the selectivity of Pd-based catalyst in alkynol hydrogenation: Effect of second metal

Lioubov Kiwi, Duncan Thomas Lindsay Alexander, Fernando Cardenas Lizana, Artur Yarulin

The development of selective Pd-based catalyst for semi-hydrogenation of dehydroisophytol (DIP), a C20-alkynol, is reported. A series of unsupported mono- (Pd) and bimetallic (Pd-M) nanoparticles (NPs) with Pd/M molar ratios of 1.5 - 5.0 (M = Ag or Cu) wer ...

Elsevier2014

Palladium(II)-Catalyzed Cyclizative Cross-Coupling of ortho-Alkynylanilines with ortho-Alkynylbenzamides under Aerobic Conditions

Qian Wang, Jieping Zhu, Bo Yao

Born to couple: The Pd(OAc)2-catalyzed reaction of o-alkynylanilines (1) with oalkynylbenzamides (2) affords the cyclizative cross-coupling products 3 in good to excellent yields. Three bonds are created in the formation of two heterocycles tethered by a t ...

Wiley-Blackwell2013

Methane Reacts with Heteropolyacids Chemisorbed on Silica to Produce Acetic Acid under Soft Conditions

David Lyndon Emsley, Aaron James Rossini, Jeremie Pelletier

Selective functionalization of methane at moderate temperature is of crucial economic, environmental, and scientific importance. Here, we report that methane reacts with heteropolyacids (HPAs) chemisorbed on silica to produce acetic acid under soft conditi ...

AMER CHEMICAL SOC2013

Selective Gas Phase Hydrogenation of

Lioubov Kiwi, Fernando Cardenas Lizana, Rocio Micaela Crespo Quesada, Xiaodong Wang

The gas phase (1 atm, 453 K) hydrogenation of p-chloronitrobenzene (p-CNB) over a series of laboratory-synthesized and commercial Pd (1-10% wt) supported on activated carbon (AC) and non-reducible (SiO2 and Al2O3) and reducible (ZnO) oxides has been examin ...

American Chemical Society2013

Synthesis, Reactivity, and Catalytic Application of a Nickel Pincer Hydride Complex

Rosario Scopelliti, Xile Hu, Jan Breitenfeld

The nickel(II) hydride complex [(MeN2N)Ni-H] (2) was synthesized by the reaction of [(MeN2N)Ni-OMe] (6) with Ph2SiH2 and was characterized by NMR and IR spectroscopy as well as X-ray crystallography. 2 was unstable in solution, and it decomposed via two re ...

American Chemical Society2012

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Élimination réductrice

Bimetallic Oxidative Addition in Nickel-Catalyzed Alkyl-Aryl Kumada Coupling Reactions

Mechanistic Study on the Palladium(II)-Catalyzed Synthesis of 2,3-Disubstituted Indoles Under Aerobic Conditions: Anion Effects and the Development of a Low-Catalyst-Loading Process

Anionic Bipyridyl Ligands for Applications in Metallasupramolecular Chemistry

How to increase the selectivity of Pd-based catalyst in alkynol hydrogenation: Effect of second metal

Palladium(II)-Catalyzed Cyclizative Cross-Coupling of ortho-Alkynylanilines with ortho-Alkynylbenzamides under Aerobic Conditions

Mechanistic Studies Related to Nickel-Catalyzed Alkyl-Alkyl Cross Coupling Reactions

Methane Reacts with Heteropolyacids Chemisorbed on Silica to Produce Acetic Acid under Soft Conditions

Selective Gas Phase Hydrogenation of

Synthesis, Reactivity, and Catalytic Application of a Nickel Pincer Hydride Complex

Multielectron redox chemistry of lanthanide Schiff-base complexes

Graph Chatbot

Chattez avec Graph Search

Methane Reacts with Heteropolyacids Chemisorbed on Silica to Produce Acetic Acid under Soft Conditions

Mechanistic Study on the Palladium(II)-Catalyzed Synthesis of 2,3-Disubstituted Indoles Under Aerobic Conditions: Anion Effects and the Development of a Low-Catalyst-Loading Process

Palladium(II)-Catalyzed Cyclizative Cross-Coupling of ortho-Alkynylanilines with ortho-Alkynylbenzamides under Aerobic Conditions

How to increase the selectivity of Pd-based catalyst in alkynol hydrogenation: Effect of second metal

Anionic Bipyridyl Ligands for Applications in Metallasupramolecular Chemistry

Selective Gas Phase Hydrogenation of

Synthesis, Reactivity, and Catalytic Application of a Nickel Pincer Hydride Complex

Multielectron redox chemistry of lanthanide Schiff-base complexes

Bimetallic Oxidative Addition in Nickel-Catalyzed Alkyl-Aryl Kumada Coupling Reactions

Mechanistic Studies Related to Nickel-Catalyzed Alkyl-Alkyl Cross Coupling Reactions