Process for preparation of aromatic hydroperoxides

Details Process for preparation of aromatic hydroperoxides Process for preparation of aromatic hydroperoxides

C - Chemistry, Metallurgy

07

C

260/642.4

C07C 409/08 (2006.01) C07C 39/02 (2006.01) C07C 409/10 (2006.01) C07C 409/12 (2006.01)

Patent

CA 1131256

ABSTRACT OF THE DISCLOSURE Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.

350764

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