Process for oxidizing alkylaromatic compounds

Details Process for oxidizing alkylaromatic compounds Process for oxidizing alkylaromatic compounds

2007-07-13

2008-11-04

Witherspoon, Sikarl A (Department: 1621)

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

Organic compounds

Oxygen containing

C568S570000, C568S754000

Reexamination Certificate

active

07446232

ABSTRACT:
In a process for oxidizing alkylaromatic compounds to the corresponding hydroperoxide, an alkylaromatic compound of general formula (I):in which R1and R2each independently represents an alkyl group having from 1 to 4 carbon atoms, provided that R1and R2may be joined to form a cyclic group having from 4 to 10 carbon atoms, said cyclic group being optionally substituted, and R3represents hydrogen, one or more alkyl groups having from 1 to 4 carbon atoms or a cyclohexyl group, with oxygen in the presence of an added catalyst comprising tert-butyl hydroperoxide and in the absence of any other catalyst, to produce a hydroperoxide of general formula (II):in which R1, R2and R3have the same meaning as in formula (I). The hydroperoxide may then be converted into a phenol and a ketone of the general formula R1COCH2R2(III), in which R1and R2have the same meaning as in formula (I).

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