Nature of the Transition Metal–Carbene Bond in Grubbs Olefin Metathesis Catalysts

2011 ◽  
Vol 30 (13) ◽  
pp. 3522-3529 ◽  
Author(s):  
Giovanni Occhipinti ◽  
Vidar R. Jensen
Keyword(s):  
Transition Metal ◽  
Olefin Metathesis ◽  
Metathesis Catalysts

scholarly journals Olefin metathesis in air

2015 ◽  
Vol 11 ◽  
pp. 2038-2056 ◽  
Author(s):  
Lorenzo Piola ◽  
Fady Nahra ◽  
Steven P Nolan
Keyword(s):  
Transition Metal ◽  
Olefin Metathesis ◽  
Functional Group ◽  
High Oxidation State ◽  
Catalytic Systems ◽  
Metal Centers ◽  
Early Transition Metal ◽  
Significant Interest ◽  
High Oxidation ◽  
Metathesis Catalysts

Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance.

Activated Hoveyda‐Grubbs Olefin Metathesis Catalysts Derived from a Large Scale Produced Pharmaceutical Intermediate—Sildenafil Aldehyde

2021 ◽  
Author(s):  
Louis Monsigny ◽  
Jakub Piątkowski ◽  
Damian Trzybiński ◽  
Krzysztof Wozniak ◽  
Tomasz Nienałtowski ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Large Scale ◽  
Metathesis Catalysts

Nitrenium ions and trivalent boron ligands as analogues of N-heterocyclic carbenes in olefin metathesis: a computational study

2015 ◽  
Vol 44 (46) ◽  
pp. 20021-20026 ◽  
Author(s):  
A. Pazio ◽  
K. Woźniak ◽  
K. Grela ◽  
B. Trzaskowski
Keyword(s):  
Olefin Metathesis ◽  
Computational Study ◽  
Heterocyclic Carbenes ◽  
Mechanistic Study ◽  
Nitrenium Ions ◽  
Nitrenium Ion ◽  
Metathesis Catalysts

A DFT mechanistic study reveals that nitrenium ion-modified Hoveyda-like complexes are good candidates for latent metathesis catalysts, while boron-modified systems are candidates for very fast metathesis catalysts.

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