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Electronic effects of substituents on the oxidation potentials of vanadyl complexes with tetradentate Schiff base ligands derived from 1,2-propylenediamine

Paper ID Volume ID Publish Year Pages File Format Full-Text
51077 46828 2010 5 PDF Available
Title
Electronic effects of substituents on the oxidation potentials of vanadyl complexes with tetradentate Schiff base ligands derived from 1,2-propylenediamine
Abstract

Two tetradentate Schiff base ligands (H2L1–2) (H2L1 = bis(2-hydroxy-3-methoxy-benzaldehyde)-1,2-propandiimine, H2L2 = bis(2-hydroxy-4-methoxy-acetophenone)-1,2-propandiimine) were prepared by reaction of 1,2-propylenediamine and o-hydroxycarbonyls compounds containing a methoxy group and characterized by elemental analysis, FT-IR, 1H and 13C NMR. The vanadyl complexes were synthesized and characterized. The catalytic potential of these complexes was tested for the oxidation of cyclooctene and styrene using tert-butylhydroperoxide (TBHP) as oxidant. It has been shown that the presence of electron-donating substituents on the aromatic ring as well as the imine bond can effectively improve the catalytic activity and the product selectivity of catalysts.

Keywords
Schiff base; Oxovanadium; Catalyst; Olefins; tert-Butylhydroperoxide
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Electronic effects of substituents on the oxidation potentials of vanadyl complexes with tetradentate Schiff base ligands derived from 1,2-propylenediamine
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 8, 31 March 2010, Pages 792–796
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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