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Cationic ruthenium(II) complexes supported on mesoporous silica as catalyst precursors in the selective oxidative cleavage of 1‐octene
Author(s) -
Kotzé Hendrik,
Mapolie Selwyn
Publication year - 2017
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3643
Subject(s) - chemistry , catalysis , ruthenium , mesoporous silica , thermogravimetric analysis , mesoporous material , heterogeneous catalysis , cationic polymerization , heptanal , nuclear chemistry , organic chemistry , inorganic chemistry , aldehyde
The selective oxidative cleavage of 1‐octene to heptanal and heptanoic acid is reported. A range of model and silica‐immobilized ruthenium(II) systems were evaluated. The MCM‐41 and SBA‐15 immobilized systems were found to show superior activity when compared to their homogeneous counterparts and were found to exert control over the selective formation of aldehydes or carboxylic acids. This could be achieved by varying the reaction times with very high yields being achieved at relatively short reaction times and low metal concentrations. The immobilized catalysts were characterized using nitrogen sorption, powder X‐ray diffraction, transmission and scanning electron microscopies, solid‐state NMR spectroscopy and thermogravimetric analysis.