Heavy fluorous phosphine-free ruthenium catalysts for alkene metathesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F14%3A00429494" target="_blank" >RIV/61388963:_____/14:00429494 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/14:43897762

Result on the web

<a href="http://dx.doi.org/10.1016/j.jfluchem.2014.03.003" target="_blank" >http://dx.doi.org/10.1016/j.jfluchem.2014.03.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jfluchem.2014.03.003" target="_blank" >10.1016/j.jfluchem.2014.03.003</a>

Result language

angličtina

Original language name

Heavy fluorous phosphine-free ruthenium catalysts for alkene metathesis

Original language description

Second generation Grubbs catalyst was modified stepwise with perfluoroalkylated isopropoxystyrene and two perfluoroalkanoate or perfluoropolyoxaalkanoate ligands to afford heavy fluorous phosphine-free ruthenium complexes, which displayed high activity in model ring-closing metathesis reactions. Surprisingly, substitution with linear perfluoropolyether chains led to the complexes of higher activity and fluorophilicity compared to perfluoroalkyl chains, while the use of branched perfluoropolyether ponytails resulted in significantly inferior activity probably due to increased steric hindrance around the active ruthenium centre. Similar reactivity pattern with slightly lower activity was observed for the second generation Hoveyda-Grubbs catalysts bearingperfluoroalkanoate or perfluoropolyoxaalkanoate groups and non-fluorinated isopropoxybenzylidene ligand. Depending on the reaction system, unactivated precatalysts can be recycled by heavy fluorous extraction with perfluoro(methylcyclohe

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

<a href="/en/project/GAP207%2F10%2F1533" target="_blank" >GAP207/10/1533: Fluorous carbenes, complexes and ionic liquids based on perfluoropolyether-substituted imidazolium salts and their applications</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Fluorine Chemistry

ISSN

0022-1139

e-ISSN

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Volume of the periodical

161

Issue of the periodical within the volume

May

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

66-75

UT code for WoS article

000336188600010

EID of the result in the Scopus database

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