METHOD FOR PRODUCING (2,4-DIMETHYLBIPHENYL-3-YL)ACETIC ACIDS, THE ESTERS THEREOF AND INTERMEDIATE COMPOUNDS

摘要

The present invention relates to a novel method for producing substituted and unsubstituted (2,4-dimethylbiphenyl-3-yl)acetic acids and the esters thereof of the formula (I) using homogenous and heterogeneous palladium catalysts, to the intermediate products 4-tertiary butyl-2,6-dimethylphenyl acetic acid and 4-tertiary butyl-2,6-dimethyl mandelic acid, and to a method for the production thereof.