BY L. WALS and W. TH. NAUTA (Chemical Laboratory of the Vrije Universiteit, 174, De Lairessestraat, Amsterdam) ... Two routes for the synthesis of 2,3,5-trimethylterephthalic acid are describ-.d, starting from I ,2,4-trimehylbenzene and p-xylene, respectively. ... Of the six methyl-substituted terephthalic acids only the 2,3,5-trimethyl compound has not yet been described in the literature l . As we needed the complete series of acids as starting material a ...
