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Ruthenium Carbene Siloxide Complexes Immobilized on Silica: Synthesis and Catalytic Activity in Olefin Metathesis
Author(s) -
Marciniec Bogdan,
Rogalski Szymon,
Potrzebowski Marek J.,
Pietraszuk Cezary
Publication year - 2011
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201000376
Subject(s) - ruthenium , carbene , chemistry , metathesis , catalysis , olefin metathesis , ring closing metathesis , ring opening metathesis polymerisation , salt metathesis reaction , covalent bond , magic angle spinning , nuclear magnetic resonance spectroscopy , organic chemistry , polymer chemistry , polymerization , polymer
Ruthenium alkylidene complexes, based on second generation Hoveyda–Grubbs catalysts, have been directly attached to silica through covalent Ru‐O‐Si bonds, characterized by using cross polarization magic angle spinning 13 C NMR (CP MAS 13 C NMR) spectroscopy, and proved active in selected metathetic transformations. The complexes can be easily recycled and subsequently reused. In the ring closing metathesis (RCM) reaction of diethyl diallyl malonate the heterogenized complex can be recycled up to 15 times.