A Highly Active Aqueous Olefin Metathesis Catalyst Bearing a Quaternary Ammonium Group

ChemSusChem ◽  
2008 ◽  
Vol 1 (1-2) ◽  
pp. 103-109 ◽  
Author(s):  
Łukasz Gułajski ◽  
Anna Michrowska ◽  
Joanna Narożnik ◽  
Zuzanna Kaczmarska ◽  
Leszek Rupnicki ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Olefin Metathesis ◽  
Ammonium Group ◽  
Highly Active ◽  
Metathesis Catalyst ◽  
Quaternary Ammonium Group

A Green Catalyst for Green Chemistry: Synthesis and Application of an Olefin Metathesis Catalyst Bearing a Quaternary Ammonium Group.

ChemInform ◽  
2006 ◽  
Vol 37 (50) ◽  
Author(s):  
Anna Michrowska ◽  
Lukasz Gulajski ◽  
Zuzanna Kaczmarska ◽  
Klaas Mennecke ◽  
Andreas Kirschning ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Quaternary Ammonium ◽  
Olefin Metathesis ◽  
Green Catalyst ◽  
Ammonium Group ◽  
Metathesis Catalyst ◽  
Quaternary Ammonium Group

A green catalyst for green chemistry: Synthesis and application of an olefin metathesis catalyst bearing a quaternary ammonium group

2006 ◽  
Vol 8 (8) ◽  
pp. 685-688 ◽  
Author(s):  
Anna Michrowska ◽  
Łukasz Gułajski ◽  
Zuzanna Kaczmarska ◽  
Klaas Mennecke ◽  
Andreas Kirschning ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Quaternary Ammonium ◽  
Olefin Metathesis ◽  
Green Catalyst ◽  
Ammonium Group ◽  
Metathesis Catalyst ◽  
Quaternary Ammonium Group

Quest for the ideal olefin metathesis catalyst

2008 ◽  
Vol 80 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Anna Michrowska ◽  
Karol Grela
Keyword(s):  
Oxygen Atom ◽  
Quaternary Ammonium ◽  
Olefin Metathesis ◽  
Amino Group ◽  
Sulfonated Polystyrene ◽  
Grubbs Catalyst ◽  
Metathesis Catalyst ◽  
Metathesis Catalysts ◽  
Novel Strategy ◽  
The Ideal

Attempts were made to create a catalyst that approaches Gladysz's vision of an "ideal catalyst". Modifications of the Hoveyda-Grubbs catalyst were carried out with the aim to increase its activity and broaden the scope of its applicability to challenging metathesis reactions. This was done by introduction of an electron-withdrawing substituent on the isopropoxybenzylidene group in order to diminish the donor properties of the oxygen atom. The resulting stable and easily accessible nitro-substituted Hoveyda-Grubbs catalyst has found a number of successful applications in various research and industrial laboratories. Also, a new concept for noncovalent immobilization of a ruthenium olefin metathesis catalyst is presented. The 2-isopropoxybenzylidene ligand of Hoveyda-Grubbs carbene is further modified by an additional amino group, and immobilization is achieved by treatment with sulfonated polystyrene, forming the corresponding ammonium salt. In this novel strategy for the immobilization of ruthenium-based metathesis catalysts, the amino group plays a dual role, being first an active anchor for immobilization and secondly, after protonation, activating the catalysts by electron-donating to -withdrawing switch. The same concept has been used in the preparation of a quaternary ammonium catalyst for aqueous olefin metathesis.

scholarly journals Highly Active Water-Soluble Olefin Metathesis Catalyst.

ChemInform ◽  
2006 ◽  
Vol 37 (30) ◽  
Author(s):  
Soon Hyeok Hong ◽  
Robert H. Grubbs
Keyword(s):  
Olefin Metathesis ◽  
Water Soluble ◽  
Highly Active ◽  
Metathesis Catalyst

Highly Active Ammonium-Tagged Olefin-Metathesis Catalyst for Simplified Purification

Synlett ◽  
2008 ◽  
Vol 2008 (17) ◽  
pp. 2692-2696 ◽  
Author(s):  
Andreas Kirschning ◽  
Karol Grela ◽  
Łukasz Gułajski ◽  
Klaas Mennecke ◽  
Axel Meyer ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Highly Active ◽  
Metathesis Catalyst
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