Production of quaternary ammonium salt of hydroxycarboxylic acid and quarternary ammonium salt of inorganic acid
申请人:Mitsubishi Gas Chemical Company, Inc
公开号:US06784317B2
公开(公告)日:2004-08-31
A quaternary ammonium hydroxycarboxylate is produced by quaternizing a tertiary amine with a hydroxycarboxylic ester represented by the following Formula 1:
wherein R1 to R3 are as defined in the disclosure. By using only one tertiary amine having at least one substituent different from R1 of the ester moiety of the hydroxycarboxylic ester and by controlling the reaction conditions, a mixture of quaternary ammonium hydroxycarboxylates having different quaternary ammonium ions is produced. By reacting an inorganic acid with the quaternary ammonium hydroxycarboxylate or its mixture, a quaternary ammonium salt of inorganic acid or its mixture is produced.
通过用以下公式1表示的羟基羧酸酯与三级胺进行季铵化反应,可以制备四元季铵羟基羧酸盐:其中R1至R3如本文所述。通过仅使用具有至少一个与羟基羧酸酯的酯基部分的R1不同的取代基的一种三级胺,并控制反应条件,可以产生具有不同季铵离子的四元季铵羟基羧酸盐混合物。通过将无机酸与四元季铵羟基羧酸盐或其混合物反应,可以制备无机酸的四元季铵盐或其混合物。