Isoselective 4-Methylpentene Polymerization by Pyridylamido Hafnium Catalysts

2021 ◽  
Author(s):  
Lingzhi Wang ◽  
Dong-hui Li ◽  
He Ren ◽  
Yuru Wang ◽  
Wei Wu ◽  
...  
Keyword(s):  
Metal Catalysis ◽  
Stereospecific Polymerization

The stereospecific polymerization of 1-alkenes is a continuing issue for metal catalysis. We have initially reported isoselective 4-methylpentene polymerizations by nonconventional pyridylamido hafnium catalysts with different bridgehead substituents (L(R1R2)Hf(Me)2, L...

A kinetic study of the stereospecific polymerization of propylene

1962 ◽  
Vol 27 (12) ◽  
pp. 2872-2877 ◽  
Author(s):  
J. Ambrož ◽  
L. Ambrož ◽  
P. Osecký ◽  
K. Veselý
Keyword(s):  
Kinetic Study ◽  
Stereospecific Polymerization

Carbon‐Sulfur Bond Constructions: From Transition‐Metal Catalysis to Sustainable Catalysis

2021 ◽  
Author(s):  
Pratheepkumar Annamalai ◽  
Ke‐Chien Liu ◽  
Satpal Singh Badsara ◽  
Chin‐Fa Lee
Keyword(s):  
Transition Metal ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Sulfur Bond

Synthesis of Plakortolides E and I Enabled by Base Metal Catalysis

2021 ◽  
Author(s):  
Stefan Leisering ◽  
Alexandros Mavroskoufis ◽  
Patrick Voßnacker ◽  
Reinhold Zimmer ◽  
Mathias Christmann
Keyword(s):  
Base Metal ◽  
Metal Catalysis

An electrochemical perspective on the roles of ligands in the merger of transition-metal catalysis and electrochemistry

2020 ◽  
Author(s):  
Ke-Yin Ye ◽  
Jun-Song Zhong ◽  
Yi Yu ◽  
Zhaojiang Shi
Keyword(s):  
Transition Metal ◽  
Organic Synthesis ◽  
Transition Metal Catalysis ◽  
Metal Catalysis

The merger of transition-metal catalysis and electrochemistry has been emerging as a very versatile and robust synthetic tool in organic synthesis. Like in their non-electrochemical variants, ligands also play crucial...

scholarly journals On the Use of Iron in Organic Chemistry

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1349 ◽  
Author(s):  
Arnar Guðmundsson ◽  
Jan-E. Bäckvall
Keyword(s):  
Organic Chemistry ◽  
Redox Potential ◽  
Potential Range ◽  
Coupling Reactions ◽  
Base Metals ◽  
Metal Catalysis ◽  
Iron Catalysis ◽  
Cross Coupling Reactions ◽  
Life On Earth ◽  
Palladium Platinum

Transition metal catalysis in modern organic synthesis has largely focused on noble transition metals like palladium, platinum and ruthenium. The toxicity and low abundance of these metals, however, has led to a rising focus on the development of the more sustainable base metals like iron, copper and nickel for use in catalysis. Iron is a particularly good candidate for this purpose due to its abundance, wide redox potential range, and the ease with which its properties can be tuned through the exploitation of its multiple oxidation states, electron spin states and redox potential. This is a fact made clear by all life on Earth, where iron is used as a cornerstone in the chemistry of living processes. In this mini review, we report on the general advancements in the field of iron catalysis in organic chemistry covering addition reactions, C-H activation, cross-coupling reactions, cycloadditions, isomerization and redox reactions.

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