Method for isomerization of trans-2,5-disubstituted 1,3-dioxane derivatives

摘要

Problem to be solved: to provide a method for producing trans-2,5-disubstituted - 1,3-dioxane derivatives useful as liquid crystal compounds.Solution 2: the CIS body and the transformer mixture represented by the equation (4a), 2,5 - disubstitutions - 13 dioxane derivatives(I) group 1 metal salt solution with saturation of metal salt at room temperature under acidic conditions;(II) group II metal salt aqueous solution with saturation of metal salt at room temperature at room temperature under(III) a zinc salt solution having a saturation of metal salts of 70% or more at room temperature under acidic conditions;Ionic liquids under acidic conditions;(I) water and iodineIsomerization in the presence of any reaction reagentTrance5 - disubstitutions - 1A method of obtaining a 3-dioxane derivative.No selection