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Heterogenization of a Modified Grubbs–Hoveyda Catalyst on a ROMP‐Derived Monolithic Support
Author(s) -
Krause Jens O.,
Lubbad Said H.,
Nuyken Oskar,
Buchmeiser Michael R.
Publication year - 2003
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300024
Subject(s) - romp , monolith , catalysis , metathesis , grubbs' catalyst , ring opening metathesis polymerisation , polymerization , polymer chemistry , grafting , yield (engineering) , chemistry , polymer , materials science , organic chemistry , composite material
A ring‐opening metathesis polymerization‐ (ROMP‐) based monolith was synthesized using a Grubbs' first generation catalyst. The living termini were used for surface grafting of norborn‐5‐ene‐2‐ylmethyl hexafluoroglutarate. The free carboxylic acid groups of the graft polymer were converted into the corresponding silver salt and reacted with the Grubbs–Hoveyda catalyst [RuCl 2 (CH(2‐ i PrO)C 6 H 4 )(IMesH 2 )] (IMesH 2 = 1,3‐bis(2,4,6‐trimethylphenyl)‐4,5‐dihydroimidazol‐2‐ylidene) to yield a stable heterogeneous version of this catalyst for use in ring‐closing metathesis (RCM) under continuous flow conditions.The monolith‐supported Grubbs–Hoveyda catalyst.