Issue 7, 2013

Intensification of TEMPO-mediated aerobic alcohol oxidations under three-phase flow conditions

Abstract

Various homogeneous and heterogeneous catalytic systems based on 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and different (co-)oxidants have been reported for the selective oxidation of alcohols. Herein we report the use of a commercially available silica-immobilized TEMPO catalyst, in combination with catalytic amounts of HNO3 as a NOx source under continuous three-phase flow conditions. First the stability of the catalyst was evaluated with benzyl alcohol and the reaction parameters were optimized. Subsequently different substrates were tested, focusing on the oxidation of renewable substrates like lactic acid and 5-hydroxymethylfurfural (HMF).

Graphical abstract: Intensification of TEMPO-mediated aerobic alcohol oxidations under three-phase flow conditions

Supplementary files

Article information

Article type
Paper
Submitted
21 Jan 2013
Accepted
07 May 2013
First published
05 Jun 2013

Green Chem., 2013,15, 1975-1980

Intensification of TEMPO-mediated aerobic alcohol oxidations under three-phase flow conditions

C. Aellig, D. Scholz, S. Conrad and I. Hermans, Green Chem., 2013, 15, 1975 DOI: 10.1039/C3GC40159F

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