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Deactivation of Ruthenium Olefin Metathesis Catalysts through Intramolecular Carbene–Arene Bond Formation
Author(s) -
Vehlow Kati,
Gessler Simon,
Blechert Siegfried
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200702560
Subject(s) - ruthenium , carbene , intramolecular force , catalysis , chemistry , steric effects , olefin metathesis , metathesis , pericyclic reaction , olefin fiber , medicinal chemistry , salt metathesis reaction , aryl , photochemistry , combinatorial chemistry , stereochemistry , organic chemistry , polymerization , polymer , alkyl
Oxygen knocks it out: Olefin metathesis catalysts without steric hindrance in the ortho positions of the N ‐aryl substituents can be transformed into catalytically inactive ruthenium complexes through CH activation (see scheme). This process presumably proceeds by a pericyclic reaction and is rendered irreversible by oxygen.