Patent ID: 6486339
Filing Date: 2002-11-26
Classification: C07C

Abstract:
A process which comprises phosphorylation of a composition comprising ortho-substituted alkylated phenol composition that comprises comprising mono-, 2,6-dialkyl, and tri-substituted phenol species, wherein the alkyl group or groups have from two to about twelve carbon atoms therein, the amount of 2,6-dialkyl phenol is no more than about 4.0%, and the amount of trialkyl phenol is from about 4% to about 75%, by weight of the entire composition, to isomerize and reduce the level of ortho-substituted alkyl phenol component therein in the presence of a catalytically effective amount of a solid acid catalyst to carry out such isomerization and reduction in the level of ortho-substituted alkyl phenol component.