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Abstract
A novel nano organosalt was synthesized easily by the reaction of sulfuric acid with 1,3-diaminopropane in water. The morphology and structure of the synthesized organosalt were determined by various techniques. The catalytic application of organosalt was investigated in the Knoevenagel reaction of aryl/heteroaryl/alkyl aldehydes with activated methylene compounds under solvent-free conditions. The Knoevenagel products were obtained in high to excellent yields in the short reaction times. No toxic solvents and by-products were involved, and in most cases no tedious purifications were needed. The catalyst was also recovered and reused after the five reaction cycles without a significant decrease in catalytic activity. The TEM image and elemental analysis of the recovered catalyst were confirmed the high stability and durability of nano organosalt under the applied reaction conditions.
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