Reaction of potassium tetracarbonylhydridoferrate with aryl halides: mechanistic study and an extension to the catalytic carbonylation of iodobenzene by a bimetallic Fe(CO)5-Co2(CO)8 system

1991 ◽  
Vol 10 (1) ◽  
pp. 341-346 ◽  
Author(s):  
Jean Jacques. Brunet ◽  
Dominique. De Montauzon ◽  
Marc. Taillefer
Keyword(s):  
Aryl Halides ◽  
Mechanistic Study ◽  
Catalytic Carbonylation

scholarly journals Mechanistic insights on the Pd-catalyzed addition of C–X bonds across alkynes – a combined experimental and computational study

2017 ◽  
Vol 8 (4) ◽  
pp. 2914-2922 ◽  
Author(s):  
Theresa Sperger ◽  
Christine M. Le ◽  
Mark Lautens ◽  
Franziska Schoenebeck
Keyword(s):  
Computational Study ◽  
Aryl Halides ◽  
Mechanistic Study

A mechanistic study of the Pd-catalyzed intramolecular addition of carbamoyl chlorides and aryl halides across alkynes is presented.

Use of Base Control To Provide High Selectivity between Diaryl Thioether and Diaryl Disulfide for C–S Coupling Reactions of Aryl Halides and Sulfur and a Mechanistic Study

2013 ◽  
Vol 32 (19) ◽  
pp. 5514-5522 ◽  
Author(s):  
Hsing-Ying Chen ◽  
Wei-Te Peng ◽  
Ying-Hsien Lee ◽  
Yu-Lun Chang ◽  
Yen-Jen Chen ◽  
...  
Keyword(s):  
High Selectivity ◽  
Aryl Halides ◽  
Mechanistic Study ◽  
Coupling Reactions

scholarly journals Migratory Reductive Cross-Coupling via Dual Nickel Metathesis

2020 ◽  
Author(s):  
Yuqiang Li ◽  
Binzhi Zhao ◽  
Long Peng ◽  
Guoyin Yin
Keyword(s):  
Cross Coupling ◽  
Aryl Halides ◽  
Catalytic Cycle ◽  
Mechanistic Study ◽  
Chain Process ◽  
Nickel Catalysis ◽  
Radical Chain ◽  
Designed Experiments ◽  
The Difference ◽  
Radical Chain Process

<div>Cross-electrophile coupling has been developed into a practical approach for the construction of carbon-</div><div>carbon bonds, wherein nickel catalysis has been widely employed. Mechanistically, a catalytic cycle involving</div><div>sequentially selective oxidative addition or radical chain process is proposed. Although the catalytic cycle of dual nickel metathesis has been discussed in several important works, none thinks this pathway is possible. In this manuscript, we present a thorough mechanistic study by a series of designed experiments toward the nickel-catalyzed migratory reductive cross-coupling. The results suggest that a catalytic cycle involving two organonickel(II) species metathesis as a key step, operates in this reaction. Moreover, we provide a discussion on the difference between the nickel-catalyzed migratory reductive cross-couplings and the classical ones. Additionally, based on the mechanistic finding, a new catalytic system has also been developed, which allows the use of electron-deficient aryl halides as starting materials, affording the migratory cross-coupling products efficiently.</div>

Migratory Reductive Cross-Coupling via Dual Nickel Metathesis

2020 ◽  
Author(s):  
Yuqiang Li ◽  
Binzhi Zhao ◽  
Long Peng ◽  
Guoyin Yin
Keyword(s):  
Cross Coupling ◽  
Aryl Halides ◽  
Catalytic Cycle ◽  
Mechanistic Study ◽  
Chain Process ◽  
Nickel Catalysis ◽  
Radical Chain ◽  
Designed Experiments ◽  
The Difference ◽  
Radical Chain Process

<div>Cross-electrophile coupling has been developed into a practical approach for the construction of carbon-</div><div>carbon bonds, wherein nickel catalysis has been widely employed. Mechanistically, a catalytic cycle involving</div><div>sequentially selective oxidative addition or radical chain process is proposed. Although the catalytic cycle of dual nickel metathesis has been discussed in several important works, none thinks this pathway is possible. In this manuscript, we present a thorough mechanistic study by a series of designed experiments toward the nickel-catalyzed migratory reductive cross-coupling. The results suggest that a catalytic cycle involving two organonickel(II) species metathesis as a key step, operates in this reaction. Moreover, we provide a discussion on the difference between the nickel-catalyzed migratory reductive cross-couplings and the classical ones. Additionally, based on the mechanistic finding, a new catalytic system has also been developed, which allows the use of electron-deficient aryl halides as starting materials, affording the migratory cross-coupling products efficiently.</div>

Mechanism of the catalytic carbonylation of aryl halides with a modified cobalt carbonyl

2007 ◽  
Vol 77 (5) ◽  
pp. 915-922 ◽  
Author(s):  
V. P. Boyarskii ◽  
E. V. Larionov ◽  
S. M. Polyakova ◽  
I. A. Boyarskaya ◽  
T. E. Zhesko
Keyword(s):  
Aryl Halides ◽  
Cobalt Carbonyl ◽  
Catalytic Carbonylation

Mechanistic study of proliferation induced by Angelica sinensis in gastric epithelial cells

2001 ◽  
Vol 120 (5) ◽  
pp. A145-A145
Author(s):  
C CHO ◽  
Y YE ◽  
E LIU ◽  
V SHIN ◽  
N SHAM
Keyword(s):  
Epithelial Cells ◽  
Mechanistic Study ◽  
Angelica Sinensis ◽  
Gastric Epithelial Cells

Mechanistic study on the cardioprotective and chemosensitizing effects of a novel danshensu derivative

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
L Wang ◽  
L Shan ◽  
G Cui ◽  
Y Chen ◽  
J li ◽  
...  
Keyword(s):  
Mechanistic Study

Mechanistic Study and Development of Catalytic Reactions of Sm(II)

2018 ◽  
Author(s):  
Sandepan Maity ◽  
Robert Flowers
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Proton Donor ◽  
Catalytic Reactions ◽  
Mechanistic Study ◽  
Mechanistic Studies ◽  
Cyclization Reactions ◽  
Mechanistic Approach ◽  
Donor Source

Despite the broad utility and application of SmI<sub>2</sub>in synthesis, the reagent is used in stoichiometric amounts and has a high molecular weight, resulting in a large amount of material being used for reactions requiring one or more equivalents of electrons. We report mechanistic studies on catalytic reactions of Sm(II) employing a terminal magnesium reductant and trimethyl silyl chloride in concert with a non-coordinating proton donor source. Reactions using this approach permitted reductions with as little as 1 mol% Sm. The mechanistic approach enabled catalysis employing HMPA as a ligand, facilitating the development of catalytic Sm(II) 5-<i>exo</i>-<i>trig </i>ketyl olefin cyclization reactions.

Mild Temperature Copper-Catalyzed Amination of Aryl Halides with Aqueous Ammonia in the Presence of Pyridyldiketone Ligands

2019 ◽  
Author(s):  
Racha Abed Ali Abdine ◽  
Anna Walczak ◽  
Sultan Abu A Aeash ◽  
Gracjan Kurpik ◽  
Artur R. Stefankiewicz ◽  
...  
Keyword(s):  
Catalytic System ◽  
Aqueous Ammonia ◽  
Aryl Halides ◽  
Efficient Coupling ◽  
Ambidentate Ligand ◽  
Mild Temperature

Ambidentate ligand pyridyldiketones were used in combination with copper to catalyze maintain of aryl halides under very mild temperatures. This novel catalytic system allow efficient coupling in one of the smoothest conditions ever reported in literature.

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