Alkylation of 2,6-di-tert-alkylphenols with alkanediols

Details Alkylation of 2,6-di-tert-alkylphenols with alkanediols Alkylation of 2,6-di-tert-alkylphenols with alkanediols

1979-10-29

1981-04-07

Evans, Joseph E.

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

Organic compounds

Oxygen containing

568790, C07C 3906

Patent

active

042608325

ABSTRACT:
There is a process disclosed for alkylating the nucleus of a phenol, said process comprising reacting an .alpha., .omega.alkanediol containing from 3 to 8 carbon atoms with a phenol having an unsubstituted nuclear position para to the phenolic hydroxyl group; said phenol being selected from the group of alkylated phenols having tertiary alkyl groups of 4 to 8 carbon atoms in both positions ortho to the phenolic hydroxyl group, in the presence of an alkali metal hydroxide or alkoxide or alkali metal at a temperature from 200.degree. to 300.degree. C. while continuously removing the water by-product as it forms and obtaining as a product said phenol having a primary hydroxy terminated alkyl group of 3 to 8 carbon atoms in said para position.

REFERENCES:
patent: 2660610 (1953-11-01), Erchak
patent: 2841623 (1958-07-01), Norton et al.
patent: 2841624 (1958-07-01), Norton et al.
patent: 3860664 (1975-01-01), Yates
patent: 3919333 (1975-11-01), Wollensak

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