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Department of Chemistry, Visva-Bharati (A Central University), Santiniketan-731 235, West Bengal, India E-mail : adinath.majee@visva-bharati.ac.in, alakananda.hajra@visva-bharati.ac.in Fax : 91-3463-262728 Jhargram Raj College, Jhargram, Paschim Medinipur-721 507, West Bengal, India Manuscript received online 21 August 2012, accepted 09 June 2016 Zwitterionic-type molten salt – 4-(1-imidazolium) butane sulfonate acts as an excellent catalyst for the synthesis of N-substituted decahydroacridine-1,8-diones through condensation of dimedone, aromatic aldehyde and amine via multicomponent condensation strategy in aqueous-ethanol as solvent. The key advantages of this process are high yields, roomtemperature reaction, reusability of catalyst, environmental friendliness, easy work-up and purification of products by non-chromatographic methods. |
