Synthesis, characterization and catalytic activity of dioxidomolybdenum(VI) complexes with tridentate Schiff bases derived from 1R,2S(-)-norephedrine

Grzegorz Romanowski , Jaromir Kira

Abstract

New chiral dioxidomolybdenum(VI) complexes with tridentate Schiff base ligands obtained by monocondensation of 1R,2S(−)-norephedrine with salicylaldehyde and its derivatives were synthesized. The complexes were characterized by elemental analysis and by their IR, CD, UV–vis, one-(1H) and two-dimensional (COSY, gHSQC and NOESY) NMR spectra. After optimization of reaction conditions, catalytic activity of these complexes were tested in the oxidation of olefins, i.e. styrene and cyclohexene, using aqueous 30% H2O2 or tert-butyl hydroperoxide (TBHP) as an oxidant. Moreover, the dioxidomolybdenum(VI) Schiff base complexes have also ability to catalyze the oxidation of thioanisole to methyl phenyl sulfoxide in presence of aqueous 30% H2O2.
Author Grzegorz Romanowski PChiAK
Grzegorz Romanowski,,
- Laboratory of chemistry and Analytics of Cosmetics
, Jaromir Kira PChS
Jaromir Kira,,
- Laboratory of Supramolecular Chemistry
Other language title versions
Journal seriesPolyhedron, ISSN 0277-5387
Issue year2017
Vol134
Pages50-58
Publication size in sheets0.5
Keywords in Englishmolybdenum(VI), Schiff base, oxidation, thioanisole, olefins
DOIDOI:10.1016/j.poly.2017.06.005
URL https://doi.org/10.1016/j.poly.2017.06.005
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 30.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.926 (2) - 2016=1.79 (5)
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