Process for the preparation of aralkyl hydroperoxides

Details Process for the preparation of aralkyl hydroperoxides Process for the preparation of aralkyl hydroperoxides

1989-11-07

1991-07-16

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568569, C07C40908, C07C40912

Patent

active

050326880

ABSTRACT:
A process for the preparation of aralkyl hydroperoxides having the formula (I) is described ##STR1## in which n=1, 2 or 3, Ar means a phenyl group which can be substituted with halogen or one or more branched or straight chain alkyl groups with 1 to 5 C-atoms, or a naphthyl group, and each radical R.sup.1 and R.sup.2 means a low alkyl radical, the alkyl radicals R.sup.1 and R.sup.2 together having 2 to 4 carbon atoms, by reaction of aralkyl carbinols having the formula (II) ##STR2## in which Ar, R.sup.1, R.sup.2 and n have the meaning given for formula (I), with hydrogen peroxide under acid conditions, the reaction being carried out in the presence of an acid-combining agent. An alkali sulphate, ammonium sulphate, alkali hydrogen sulphate and/or ammonium hydrogen sulphate is used in preference as the acid-combining agent. Tert.aralkyl hydroperoxides can be prepared in high yield with a high purity in a simple and safe manner with this process.

REFERENCES:
patent: 2829173 (1958-04-01), Shiffler et al.
Van Steveninck et al., Rec. trav. Chem., 79: 413-429 (1980).

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