PREPARATION METHOD FOR PHENOXYCARBOXYLATE

The invention provides a preparation method of phenoxycarboxylic ester, wherein the preparation method includes the following steps: A) dehydrating a phenol compound and alkaline hydroxide or carbonate into a salt in an organic solvent to obtain a salt of the phenol compound; B) adding chlorocarboxylic ester after salt formation, and carrying out condensation reaction to obtain phenoxycarboxylic ester, wherein the organic solvent is a mixture of any two of toluene, xylene, chlorobenzene, phenol, butanol and isobutanol. The phenol is dehydrated into the salt in the mixed organic solvent, the system still maintains a uniform state in the dehydration process, continuous production is achieved, the dehydration efficiency is high and the efficiency of the whole production process is high. Moreover, the raw materials are easy to obtain, the production cycle is short, the energy consumption is low, and the production cost is low.