A process for the preparation of 2,2-dimethyl-5-(2,5-xylyloxy)-valeric acid, which process comprises the reaction of 2,5-dimethylphenol with a compound of formula (II), ##STR1## wherein R is an alkyl, aryl, arylalkyl group and --X is a halogen atom, and the subsequent hydrolysis to compound (I), characterized in that the reaction of compound (II) with 2,5-dimethylphenol is carried out in the absence of solvents and in the presence of an ammonium or quaternary phosphonium salt.
一种制备2,2-二甲基-5-(2,5-二甲基苯氧基)
戊酸的方法,该方法包括将2,5-二甲基
酚与式子(II)的化合物反应,其中式子(II)为:##STR1## 其中R为烷基、芳基、芳基烷基基团,--X为卤素原子,然后
水解为化合物(I)。其特征在于,在无溶剂存在的情况下,在
铵盐或季
铵盐的存在下进行化合物(II)与2,5-二甲基
酚的反应。