Pyridinium based ionic liquids as promoters for a green and selective synthesis of N-monomethylanilines

Iranian Journal of Catalysis

مقاله 9، دوره 9، شماره 1، خرداد 2019، صفحه 79-83   

نوع مقاله: Articles

نویسندگان

Pranab Jyoti Das^* ؛ Dimpee Das

Department of Chemistry, Gauhati University, Guwahati 781014, India.

چکیده

Pyridinium based ionic liquids derived from β-picoline and n-alkylbromides were synthesized by a simple procedure at ambient temperature and then characterized. These neutral ionic liquids were investigated for their dual role as the solvent and promoter for the selective synthesis of a series of N-monomethylanilines using dimethylcarbonate as the methylating agent. A solvent free green procedure was developed. Reaction conditions were mild and the product recovery was simple. Excellent selectivity for N-monomethylation, the high yield of the product and recyclability of the ionic liquids are some of the promising features of this protocol.

کلیدواژه‌ها

Dimethylcarbonate؛ Pyridinium ionic liquids؛ Anilines؛ N-monomethylanilines؛ Solvent-free reaction

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