Process for the preparation of alkyl-substituted phenols or naph

Details Process for the preparation of alkyl-substituted phenols or naph Process for the preparation of alkyl-substituted phenols or naph

1988-12-01

1990-05-29

Lone, Werren B.

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

Organic compounds

Oxygen containing

568741, 568768, 568802, C07C 3708

Patent

active

049297716

ABSTRACT:
Process for the preparation of alkyl-substituted phenols or naphthols by oxidizing the corresponding dialkylbenzenes or dialkylnaphthalenes, respectively, at elevated temperatures of, for example, 70.degree. to 130.degree. C. by means of oxygen or oxygen donors, in the absence of solvents and in the presence of an alkali metal salt or alkaline earth metal salt of an organic carboxylic acid having 5 to 14 carbon atoms, to give the corresponding 2,6-dialkylnaphthalene-or 1,4-dialkylphenyl monohydroperoxides and subsequently hydrolysing the latter in a customary manner.
The process results in pure, easily isolatable products in a good yield. The products of the process according to the invention are valuable precursors and intermediates for, inter alia, dyes, plastics or pharmaceuticals.

REFERENCES:
patent: 2796439 (1957-06-01), Berneis
patent: 2861107 (1958-11-01), Hiratsuka
patent: 4480134 (1984-10-01), Fulme

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