METHOD FOR SYNTHESISING MONOHALOMETHYL-SUBSTITUTED DIBENZO CROWN ETHER

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to a method for synthesysing monohalomethyl-substituted dibenzo crown ether by the formula I, consisting in an interaction of the corresponding dibenzo crown ether with formaldehyde and hydrogen halide, formalin is used as a source of formaldehyde, concentrated hydrochloric and hydrobromic acids are used as hydrogen halides, and glacial acetic acid is used as a solvent, at a temperature of 20 to 25°C, with a hydrohalic acid:dibenzo crown ether:formaldehyde ratio of 10:1:3,4.;EFFECT: technical result is development of a new method for obtaining a compound by the formula (I) with a high yield, applicable in synthesis of polymer catalysts for phase transfer of anhydride hydrolysis reaction.; ;1 cl, 6 ex