Antioxidant process

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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568717, 568718, 568719, C07C 3912

Patent

active

049925970

ABSTRACT:
3,5-dialkyl-4-hydroxybenzyl-substituted benzene compounds are made by reacting 2,6-dialkyl-4-methoxymethyl phenols with a benzene compound having an unsubstituted nuclear position in an inert solvent and in the presence of an organic sulfonic acid catalyst while distilling methanol by-product from the reaction mixture as it forms.

REFERENCES:
patent: 3644538 (1972-02-01), Stanes
patent: 3925488 (1975-12-01), Shin
patent: 4259534 (1981-09-01), Gurvich et al.
patent: 4415409 (1983-11-01), Zudkevitch et al.
patent: 4870214 (1989-09-01), Mina et al.
patent: 4898994 (1990-02-01), Livingston et al.

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