FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing bis(2-hydroxy-phenyl) ether of oligoethylene glycol in monohydrate form - an intermediate product for synthesis of symmetrical and asymmetrical dibenzo-crown-ethers, which are used as a selective extractant of cations of different metals, including radioactive metals, as well as in different areas of chemistry, engineering, biology and medicine. The method includes reacting excess pyrocatechol with dichloro-substituted oligoethylene glycol in the presence of an alkaline agent in a medium of an organic solvent while heating. As the alkaline agent sodium hydroxide is used, as the organic solvent dimethylformamide is used, and the process is carried out at 100-105°C in the presence of a catalyst - silicon oxide or a metal oxide (amphoteric or basic), preferably nano-sized.
EFFECT: method enables to obtain the end products with significant simplification of the implementation of the process.
7 ex
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