A1 Refereed original research article in a scientific journal
Syntheses and catalytic oxotransfer activities of oxo molybdenum(VI) complexes of a new aminoalcohol phenolate ligand
Authors: Hossain MK, Haukka M, Sillanpää R, Hrovat DA, Richmond MG, Nordlander E, Lehtonen
Publisher: ROYAL SOC CHEMISTRY
Publication year: 2017
Journal: Dalton Transactions
Journal name in source: DALTON TRANSACTIONS
Journal acronym: DALTON T
Volume: 46
Issue: 21
First page : 7051
Last page: 7060
Number of pages: 10
ISSN: 1477-9226
eISSN: 1477-9234
DOI: https://doi.org/10.1039/c7dt00846e
Abstract
The new aminoalcohol phenol 2,4-di-tert-butyl-6-(((2-hydroxy-2-phenylethyl) amino) methyl) phenol (H2L) was prepared by a facile solvent-free synthesis and used as a tridentate ligand for new cis-dioxomolybdenum(VI)(L) complexes. In the presence of a coordinating solvent (DMSO, MeOH, pyridine), the complexes crystallise as monomeric solvent adducts while in the absence of such molecules, a trimer with asymmetric Mo=O -> Mo bridges crystallises. The complexes can catalyse epoxidation of cis-cyclooctene and sulfoxidation of methyl-p-tolylsulfide, using tert-butyl hydroperoxide as oxidant.
The new aminoalcohol phenol 2,4-di-tert-butyl-6-(((2-hydroxy-2-phenylethyl) amino) methyl) phenol (H2L) was prepared by a facile solvent-free synthesis and used as a tridentate ligand for new cis-dioxomolybdenum(VI)(L) complexes. In the presence of a coordinating solvent (DMSO, MeOH, pyridine), the complexes crystallise as monomeric solvent adducts while in the absence of such molecules, a trimer with asymmetric Mo=O -> Mo bridges crystallises. The complexes can catalyse epoxidation of cis-cyclooctene and sulfoxidation of methyl-p-tolylsulfide, using tert-butyl hydroperoxide as oxidant.
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