Results 31 to 40 of about 4,393 (185)

DFT Investigation into the Role of Conventional and Ionic Liquids as Solvents in Olefin Metathesis

open access: yesInternational Journal of Electrochemical Science, 2013
The effects of conventional and ionic liquids on the metathesis of olefin have been investigated by means of quantum chemical calculations to establish the factors favouring the metathesis of olefin in ionic liquid. The results suggest that ionic liquids
Priya A. Thomas   +2 more
doaj   +1 more source

Ruthenium-based olefin metathesis catalysts with monodentate unsymmetrical NHC ligands

open access: yesBeilstein Journal of Organic Chemistry, 2018
An overview on the catalytic properties of ruthenium complexes for olefin metathesis bearing monodentate unsymmetrical N-heterocyclic diaminocarbene ligands is provided. The non-symmetric nature of these NHC architectures strongly influences activity and
Veronica Paradiso   +2 more
doaj   +1 more source

Halide exchanged Hoveyda-type complexes in olefin metathesis

open access: yesBeilstein Journal of Organic Chemistry, 2010
The aims of this contribution are to present a straightforward synthesis of 2nd generation Hoveyda-type olefin metathesis catalysts bearing bromo and iodo ligands, and to disclose the subtle influence of the different anionic co-ligands on the catalytic ...
Julia Wappel   +6 more
doaj   +1 more source

Dimethyl 9-Octadecenedioate and 9-Oktadecene from Methyl Oleate Via a Ruthenium-Catalyzed Homo Olefin Metathesis Reaction

open access: yesInternational Journal of Technology, 2017
Oleic acid, one of the major components of palm oil, has attracted much interest in modern oleochemistry. The internal olefin group in oleic acid is a useful functional group in the transformation of a fatty acid to other functional chemicals and ...
Robby Roswanda   +2 more
doaj   +1 more source

Photolithographic Olefin Metathesis Polymerization

open access: yesJournal of the American Chemical Society, 2013
Patterning functional materials is a central challenge across many fields of science. The ability to lithographically fabricate micro- and nanostructures has been one of the most impactful technological breakthroughs of the last century. In part due to the complexity of the chemical processes in photoresists, there is a limited variety of materials ...
Weitekamp, Raymond A.   +2 more
openaire   +3 more sources

Desymmetrization of 7-azabicycloalkenes by tandem olefin metathesis for the preparation of natural product scaffolds

open access: yesBeilstein Journal of Organic Chemistry, 2007
BackgroundTandem olefin metathesis sequences are known to be versatile for the generation of natural product scaffolds and have also been used for ring opening of strained carbo- and heterocycles.
Wolfgang Maison   +2 more
doaj   +1 more source

Aqueous olefin metathesis: recent developments and applications

open access: yesBeilstein Journal of Organic Chemistry, 2019
Olefin metathesis is one of the most powerful C–C double-bond-forming reactions. Metathesis reactions have had a tremendous impact in organic synthesis, enabling a variety of applications in polymer chemistry, drug discovery and chemical biology ...
Valerio Sabatino, Thomas R. Ward
doaj   +1 more source

Synthesis of Pentacycloundecane (PCUD) Based Spiro-Pyrano-Cage Framework via Ring-Closing Metathesis

open access: yesMolbank, 2023
Here, we demonstrate a short synthetic route to pyrano cage systems containing pentacycloundecane units by employing ring-closing metathesis (RCM) as a key step.
Sambasivarao Kotha   +2 more
doaj   +1 more source

Application of olefin metathesis in the synthesis of functionalized polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials

open access: yesBeilstein Journal of Organic Chemistry, 2019
This mini-review summarizes the applications of olefin metathesis in synthesis and functionalization of polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials.
Patrycja Żak, Cezary Pietraszuk
doaj   +1 more source

The intriguing modeling of cis–trans selectivity in ruthenium-catalyzed olefin metathesis

open access: yesBeilstein Journal of Organic Chemistry, 2011
In this study we have investigated computationally the origin of the cis–trans selectivity in the Ru-catalyzed cross metathesis (CM) of a prototype monosubstituted olefin, i.e., propene.
Naeimeh Bahri-Laleh   +2 more
doaj   +1 more source

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