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Issue 96, 2018
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Facile in situ generation of highly active (arylimido)vanadium(v)–alkylidene catalysts for the ring-opening metathesis polymerization (ROMP) of cyclic olefins by immediate phenoxy ligand exchange

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Abstract

Highly active catalysts for the ring-opening metathesis polymerization (ROMP) of cyclic olefins (norbornene, cyclopentene, cycloheptene) can be generated in situ by premixing V(CHSiMe3)(NC6F5)(O-2,6-iPr2C6H3)(PMe3)2 (1) with 1.0 equiv. of C6F5OH or C6Cl5OH via the immediate phenoxy exchange; the activity was affected by the kind of phenol added [activity (TOF) in the ROMPs of norbornene: 46 200 min−1 (upon addition of C6F5OH) vs. 37.3 min−1 (by 1)].

Graphical abstract: Facile in situ generation of highly active (arylimido)vanadium(v)–alkylidene catalysts for the ring-opening metathesis polymerization (ROMP) of cyclic olefins by immediate phenoxy ligand exchange

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Article information


Submitted
06 Oct 2018
Accepted
08 Nov 2018
First published
08 Nov 2018

Chem. Commun., 2018,54, 13559-13562
Article type
Communication

Facile in situ generation of highly active (arylimido)vanadium(V)–alkylidene catalysts for the ring-opening metathesis polymerization (ROMP) of cyclic olefins by immediate phenoxy ligand exchange

H. Hayashibara, X. Hou and K. Nomura, Chem. Commun., 2018, 54, 13559
DOI: 10.1039/C8CC07974A

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