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).

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

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

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

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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