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Cyclohexylbenzene

Arlington, Texas - 23 Sep, 2017
$1
  • Cyclohexylbenzene
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Description

Keywords
autoxidation; cyclohexylbenzene; phenol; N-hydroxyphthalimide

Abstract
A method is described for the highly selective oxidation of cyclohexylbenzene to cyclohexylbenzene-1-hydroperoxide. In the presence of 0.5 mol% N-hydroxyphthalimide (NHPI) and 2 mol% of the hydroperoxide product, without solvent, a selectivity of ca. 98% to the desired product was obtained at 32% conversion. The use of NHPI increases the selectivity for initial H-abstraction from the 1-position, vs the other positions in the cyclohexyl ring, suppresses byproduct formation via transannular hydrogen abstraction and increases the overall rate of reaction.

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