METHOD FOR PREPARING QUATERNARY AMMONIUM ALKOXIDES Russian patent published in 2007 - IPC C07C211/63 C25B3/00 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of quaternary ammonium alkoxides. Method involves electrolysis of quaternary ammonium salts of the formula: [R₁-R₂-R₃-R₄-N]⁺Cl^- wherein R₁, R₂, R₃ and R₄ mean (C₁-C₄)-alkyl; R₃ and R₄ mean -CH₂-CH=CH, -CH₂CCl=CH₂, -CH₂-CH=CHCl; R₄ means benzyl taken as a solution in the concentration 40-70 weight% in dried alcohols of the formula: R-OH wherein R means (C₁-C₄)-alkyl, -CH₂-CCl=CH₂, -CH₂-CH=CHCl, benzyl, and process is carried out in two- or three-chamber electrolyzers with ion-exchange membranes at temperature 20-40°C and the current cathode density value 30-50 mA/cm² wherein the corresponding quaternary ammonium alkoxide as 1-3% of alcoholic solution is placed in the electrolyzer cathode space. Method provides simplifying synthesis of quaternary ammonium alkoxides based on exclusion for using alkaline metals or metal hydroxides and to reduce danger of the process significantly. Synthesized compounds can be used as catalysts in different reactions carrying out under interphase conditions, as reagents in the dehydrochlorination reaction of polychloroalkanes and in synthesis of ether by interaction with monohalide-derivatives.

EFFECT: improved method of synthesis.

2 tbl, 2 dwg, 5 ex