Ester group-containing quaternary ammonium salt compound and its application
A quaternary ammonium salt compound and compound technology, which is applied in the field of ester group-containing compounds, can solve the problems of poor pigment stability, reduced pigment tinting strength, and complicated preparation process, and achieve good storage stability, enhanced transparency, and low preparation costs. low effect
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Embodiment 1
[0040] The preparation of the Gemini quaternary ammonium salt containing ester group as shown in structure:
[0041]
[0042] (1) Put 1 part of 2,3-butanediol, 2.5 parts of chloroacetic acid and 2 parts of anhydrous sodium sulfate into the reactor, and add p-toluenesulfonic acid (1% of the mass of the reactant). Under the protection of nitrogen, the mixture was heated to 120° C., cooled to room temperature after reacting for 6 hours, and the water agent, anhydrous sodium sulfate, was removed by suction filtration. The organic layer was washed with saturated NaHCO 3 Wash with aqueous and deionized water until the pH is neutral. The solvent was removed under reduced pressure to give 2,3-butanediol chloroacetate.
[0043] (2) Add 1 part of 2,3-butanediol chloroacetate and 2.5 parts of N,N-dimethyldodecyl tertiary amine prepared above into the reactor, and then add an appropriate amount of dichloromethane as Solvent, reflux at 90-100°C for 10 hours to obtain a Gemini quatern...
Embodiment 2
[0046] The preparation of the Gemini quaternary ammonium salt containing ester group as shown in structure:
[0047]
[0048] (1) Put 1 part of ethylene glycol, 2.5 parts of chloroacetic acid and 2 parts of anhydrous sodium sulfate into the reactor, and add p-toluenesulfonic acid (1% of the mass of the reactant). Under the protection of nitrogen, the mixture was heated to 120° C., cooled to room temperature after reacting for 6 hours, and the water agent, anhydrous sodium sulfate, was removed by suction filtration. The organic layer was washed with saturated NaHCO 3 Wash with aqueous and deionized water until the pH is neutral. The solvent was removed under reduced pressure to give ethylene glycol chloroacetate.
[0049] (2) 1 part of ethylene glycol chloroacetate and 2.5 parts of N,N-dimethyl dodecyl tertiary amine prepared above are added to the reactor, and then an appropriate amount of dichloromethane is added as a solvent, at 90 Reflux at ~100°C for 10 hours to obta...
Embodiment 3
[0052] The preparation of the Gemini quaternary ammonium salt that contains ester group as shown in structure:
[0053]
[0054] (1) Put 1 part of ethylene glycol, 2.5 parts of chloroacetic acid and 2 parts of anhydrous sodium sulfate into the reactor, and add p-toluenesulfonic acid (1% of the mass of the reactant). Under the protection of nitrogen, the mixture was heated to 120° C., cooled to room temperature after reacting for 6 hours, and the water agent, anhydrous sodium sulfate, was removed by suction filtration. The organic layer was washed with saturated NaHCO3 Wash with aqueous and deionized water until the pH is neutral. The solvent was removed under reduced pressure to give ethylene glycol chloroacetate.
[0055] (2) Add 1 part of ethylene glycol chloroacetate and 2.5 parts of N,N-dimethyloctadecyl tertiary amine prepared above into the reactor, then add an appropriate amount of dichloromethane as solvent, at 90 Reflux at ~100°C for 10 hours to obtain a Gemini q...
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