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Synthesis of Quaternary Ammonium Salts with Novel Counterions

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Journal of Surfactants and Detergents

Abstract

The preparations of quaternary ammonium compounds from various tertiary amines and the (environmentally friendly) alkylation agent dimethyl carbonate were carried out. The effects of reaction temperature, reaction time, material mol ratio and solvent dosage on quaternization were examined, and the optimum reaction conditions were determined. Under the optimum conditions, the conversions of mono-alkyl tertiary amines could attain over 99%, while the conversions of di-alkyl tertiary amines reached over 95%. Moreover, a series of quaternary ammonium salts with new counterions (HCO3, CH3COO, CH3CH2COO, CH3CH(OH)COO) were synthesized by the hydrolysis of methyl carbonate quaternary ammonium salts or by ion exchange reaction of methyl carbonate quaternary ammonium salts with corresponding acids.

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Acknowledgments

The authors gratefully acknowledge the financial support from Natural Science Foundation of Shanxi (2010021013-1) and the Patent Transformation Project of Taiyuan (1008).

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Correspondence to Yajie Jiang.

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Jiang, Y., Geng, T. & Li, Q. Synthesis of Quaternary Ammonium Salts with Novel Counterions. J Surfact Deterg 15, 67–71 (2012). https://doi.org/10.1007/s11743-011-1289-9

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  • DOI: https://doi.org/10.1007/s11743-011-1289-9

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