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How Important Is the Release–Return Mechanism in Olefin Metathesis?
Author(s) -
Vorfalt Tim,
Wannowius Klaus J.,
Thiel Vasco,
Plenio Herbert
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201001832
Subject(s) - ligand (biochemistry) , olefin metathesis , mechanism (biology) , styrene , olefin fiber , catalysis , chemistry , ether , metathesis , combinatorial chemistry , reaction mechanism , polymer chemistry , photochemistry , organic chemistry , copolymer , polymerization , biochemistry , philosophy , epistemology , receptor , polymer
From whose bourns no traveller returns, puzzles the will : UV/Vis, 19 F NMR, and fluorescence spectroscopic studies (see graphic) provide no evidence supporting the boomerang mechanism in Grubbs–Hoveyda complexes, which is the return of the isopropoxy styrene as a benzylidene ether ligand following its release during catalyst initiation.