METHOD FOR PRODUCING SUBSTITUTED 3-PYRIDYLMETHYL AMMONIUM BROMIDES

FIELD: chemistry.SUBSTANCE: invention refers to a method for producing 5,6-disubstituted 3-pyridylmethyl ammonium bromides, wherein Q represents a tertiary aliphatic or cyclic, saturated, partially unsaturated or aromatic amine; Z represents hydrogen or halogen; Zrepresents hydrogen, halogen cyano or nitro; each Y and Yindependently represents OR, NRR, or wherein YYtogether represent -O-, -S- or NR-; each Rand Rindependently represents hydrogen, C-Calkyl optionally substituted by C-Calkoxy or phenyl optionally substituted by one-three C-Calkyl groups, C-Calkoxy groups or halogen atoms, or a phenyl optionally substituted by one-three C-Calkyl groups, C-Calkoxy groups or halogen atoms; Rrepresents hydrogen or C-Calkyl, which involves the stages of (i) interaction of a compound of formula, wherein the symbols have values specified for formula (I) with bromine in the presence a radical initiator in the mixture of solvents containing an aqueous phase and an organic phase, wherein the organic phase contains a solvent specified in 1,2-dichloroethane, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene and tetrachloromethane, and wherein pH of the aqueous phase makes from 3 to