Molecules (Dec 2008)

Organocatalytic Oxidative Dehydrogenation of Dihydroarenes by Dioxygen Using 2,3-Dichloro-5,6-dicyano-benzoquinone (DDQ) and NaNO2

  • Hong Ma,
  • Lipeng Zhou,
  • Zhiqiang Sun,
  • Jie Xu,
  • Zhongtian Du,
  • Hong Miao,
  • Wei Zhang

DOI
https://doi.org/10.3390/molecules13123236
Journal volume & issue
Vol. 13, no. 12
pp. 3236 – 3245

Abstract

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The oxidative dehydrogenation of dihydroarenes catalyzed by 2,3-dichloro-5,6-dicyano-benzoquinone(DDQ) and NaNO2 with dioxygen is reported. The combination of DDQ and NaNO2 showed high efficiency and high selectivity, compared with other benzoquinones and anthraquinones, e.g., >99% conversion of 9,10-dihydroanthracene with 99% selectivity for anthracene can be obtained at 120 °C under 1.3 MPa O2 for 8 h. Excellent results were achieved in the oxidative dehydrogenation of variety of dihydroarenes.

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