Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Reaction Conditions and Mechanism of Electrolytic Reduction of Dibenzoylmethane$^\dag$

  • Kang, Sung-Chul (Department of Chemistry Hankuk University of Foreign Studies) ;
  • Chon, Jung-Kyoon (Department of Chemistry Hankuk University of Foreign Studies)
  • Published : 1987.10.20
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Abstract

Electrochemical reduction of dibenzoylmethane was studied on mercury electrode by means of cyclic voltammetry, polarography and potentiostatic measurements in ethanol-water system. In acidic solutions monomeric pinacol was produced by irreversible two-electron process while monomeric and dimeric pinacol were competitively produced by the same process in neutral solution. However, in basic solution the dimeric pinacol was mostly produced through radical by irreversible one-electron transfer process. Mechanisms of the reduction of dibenzoylmethane are deduced from Tafel slope, pH dependance and reaction order with respect to the concentration of dibenzoylmethane in the solution of various pH.

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