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Aerobic oxidation of α-hydroxyketones catalysed by cobalt(II) and iron(III) complexes under homogeneous and heterogeneous conditions

✍ Scribed by Maria M. Dell'Anna; Piero Mastrorilli; Cosimo F. Nobile; Luigi Lopez

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 349 KB
Volume: 111
Category: Article
ISSN: 1381-1169
DOI: 10.1016/1381-1169(96)00087-8

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✦ Synopsis

Aromatic a-hydroxyketones were easily oxidized by dioxygen in the presence of excess aldehyde or aldoacetal with catalytic amount of Co(II) or Fe(II1) complexes, under homogeneous and heterogeneous conditions. Co(acac), or Fe(acac), were the catalysts used in homogeneous phase reactions whereas Co(II) or Fe(II1) supported complexes, obtained by copolymerization of Co(AAEMA), or Fe(AAEMA), (AAEMA-= deprotonated form of 2-(acetoacetoxy)ethyl methacrylate) with acrylamides, were the heterogeneous catalysts. The supported metal complexes were recyclable and did not suffer from metal leaching.

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