Oxidation of Benzoins to Benzils with Chromium Trioxide Supported on Kieselghur under Viscous Conditions

Abstract

Selective oxidation of benzoins to corresponding benzils using chromium trioxide supported on kieselghur reagent under viscous conditions at room temperature is described. The present oxidations are completed within 1 hour with the yield between 89 and 98%. The main advantage of present oxidation is that the reaction can be carried out under quite milder reaction conditions as compared to the other reported chromium (VI)-based reagents.

Keywords:

• benzils
• benzoins
• chromium trioxide
• kieselguhr
• oxidation
• viscous conditions

Notes

^a All the products are known compounds and were identified by comparison of their spectra with the literature values.

^b Yield of isolated product.