| abstract |
2,2-Dimethyl-5-(2,5-dimethylphenoxy)-pentanoic acid of Formula (I> <IMAGE> is prepared by reacting an ester of the general Formula (X> <IMAGE> - wherein X represents halogen and Z stands for a straight or branched chain C1-8 alkylene group optionally substituted by one or two 2,2-dimethyl-5-halopentanoyloxy group(s), wherein halo represents chlorine or bromide, and in which alkylene group one or two methylene group(s) may be optionally replaced either by hetero atom(s) or by bivalent heterocyclic group - with an alkali salt of 2,2-dimethylphenol of Formula (II> <IMAGE> or with an ester of the latter formed with a lower alcoholic acid, and hydrolizing the aryloxy-substituted ester of the general Formula (XI) thus obtained <IMAGE> |