Impact of Electronic Modification of the Chelating Benzylidene Ligand in cis-Dichloro-Configured Second-Generation Olefin Metathesis Catalysts on Their Activity

2014 ◽  
Vol 33 (11) ◽  
pp. 2806-2813 ◽  
Author(s):  
Eva Pump ◽  
Albert Poater ◽  
Michaela Zirngast ◽  
Ana Torvisco ◽  
Roland Fischer ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
Metathesis Catalysts ◽  
In Cis

Merrifield resin-assisted routes to second-generation catalysts for olefin metathesis

2018 ◽  
Vol 8 (6) ◽  
pp. 1535-1544 ◽  
Author(s):  
Daniel L. Nascimento ◽  
Emma C. Davy ◽  
Deryn E. Fogg
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
Highly Active ◽  
Merrifield Resin ◽  
Metathesis Catalysts

Phosphine-scavenging Merrifield resins can significantly facilitate the synthesis of highly active Ru metathesis catalysts, including the second-generation Grubbs, Hoveyda, and indenylidene catalysts (GII, HII, InII).

Improved One-Pot Synthesis of Second-Generation Ruthenium Olefin Metathesis Catalysts

2002 ◽  
Vol 21 (2) ◽  
pp. 442-444 ◽  
Author(s):  
Laleh Jafarpour ◽  
Anna C. Hillier ◽  
Steven P. Nolan
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
One Pot ◽  
One Pot Synthesis ◽  
Metathesis Catalysts

Ruthenium olefin metathesis catalysts featuring unsymmetrical N-heterocyclic carbenes

2016 ◽  
Vol 45 (2) ◽  
pp. 561-571 ◽  
Author(s):  
Veronica Paradiso ◽  
Valerio Bertolasi ◽  
Chiara Costabile ◽  
Fabia Grisi
Keyword(s):  
Alkyl Group ◽  
Olefin Metathesis ◽  
Second Generation ◽  
Ruthenium Catalysts ◽  
Heterocyclic Carbenes ◽  
Metathesis Catalysts

New second generation ruthenium catalysts bearing unsymmetrical NHCs show different catalytic efficiencies depending on the size of the N-alkyl group (methyl or cyclohexyl) and on the backbone configuration.

New Concepts in Designing Ruthenium-Based Second Generation Olefin Metathesis Catalysts and Their Application

2008 ◽  
pp. 217-222
Author(s):  
Micha_ Bieniek ◽  
Karol Grela ◽  
Anna Rosiak ◽  
John Tarabocchia ◽  
Anna Szadkowska ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
New Concepts ◽  
Metathesis Catalysts

ESI-MS Studies and Calculations on Second-Generation Grubbs and Hoveyda–Grubbs Ruthenium Olefin Metathesis Catalysts

2012 ◽  
Vol 31 (5) ◽  
pp. 1627-1634 ◽  
Author(s):  
Hao-Yang Wang ◽  
Wai-Leung Yim ◽  
Yin-Long Guo ◽  
Jürgen O. Metzger
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
Esi Ms ◽  
Metathesis Catalysts

Effect of the bulkiness of indenylidene moieties on the catalytic initiation and efficiency of second-generation ruthenium-based olefin metathesis catalysts

2016 ◽  
Vol 6 (7) ◽  
pp. 2092-2100 ◽  
Author(s):  
Baoyi Yu ◽  
Zhixiong Luo ◽  
Fatma B. Hamad ◽  
Karen Leus ◽  
Kristof van Hecke ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Second Generation ◽  
High Efficiency ◽  
Steric Repulsion ◽  
Metathesis Catalysts

Fast initiation and high efficiency of ruthenium indenylidene catalysts induced by steric repulsion between two ligands (SIMes ligand and bulky indenylidene ligand).

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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