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Journal articles
Design of bis-NHC Ru-complexes featuring diarylmethylene N-substituents for olefin metathesis
Abstract : New ruthenium indenylidene complexes containing N-heterocyclic carbene (NHC) ligands were synthesized and evaluated in olefin metathesis. The presence of two symmetrical saturated NHCs featuring N-diarylmethylene fragments (R= H, OMe or F) led to robust ruthenium precatalysts with a good latency. A kinetic study was investigated showing that a thermal stimulus (>60 degrees C) is required to reach an efficient catalytic initiation. Interestingly, a slight electronic effect was observed depending on the presence of an electron-donating or -withdrawing group within the diarylmethylene moiety. These complexes showed good activity at 1 mol% of catalyst loading in selected ring-closing metathesis (RCM) and cross-metathesis (CM) transformations. [GRAPHICS] .
Cited literature [26 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02303421
Contributor : Laurent Jonchère <>
Submitted on : Thursday, July 9, 2020 - 11:51:42 AM
Last modification on : Saturday, July 11, 2020 - 3:14:13 AM
Contributor : Laurent Jonchère <>
Submitted on : Thursday, July 9, 2020 - 11:51:42 AM
Last modification on : Saturday, July 11, 2020 - 3:14:13 AM
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