Metal free oxidation of alkyl substituted aromatics with aqueous tert-butyl hydroperoxide under microwave irradiation

Hao He, Bao Jian Pei, Albert W M LEE*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
1 Downloads (Pure)

Abstract

Oxidation of alkyl substituted aromatic compounds to ketones and carboxylic acids can be achieved by 70% aqueous TBHP (tert-butyl hydroperoxide) under microwave irradiation with no additional organic solvent, metal based reagent or catalyst. Methyl aromatics (toluenes and xylenes) can be oxidized directly to the industrially important benzoic and phthalic acids. An addition of a tiny amount of ionic liquid and simultaneous cooling improves the efficiency of these oxidations. For other alkyl substituted aromatics, ketones are obtained in good yields.

Original languageEnglish
Pages (from-to)1857-1861
Number of pages5
JournalGreen Chemistry
Volume11
Issue number11
DOIs
Publication statusPublished - 3 Nov 2009

Scopus Subject Areas

  • Environmental Chemistry
  • Pollution

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