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.
Process for the preparation of quaternary ammonium salts of hydroxycarboxylic acids and quaternary ammonium salts of inorganic acids
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:EP1254889A1
公开(公告)日:2002-11-06
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.