Aluminized polyborate catalyzed efficient solvent-free synthesis of 1,8-dioxo-decahydroacridines via hantzsch condensation

Abstract

In this work we report, aluminized polyborate catalyzed facile and efficient one-pot four component Hantzsch synthesis of 1,8-dioxo-decahydroacridines using substituted aromatic aldehydes (1 mmol), dimedone (2 mmol) and ammonium acetate (1.5 mmol) at 95-100oC under solvent-free condition. The prominent advantages of this methodology are good product yields (85-95%), eco-friendliness, mild reaction conditions and use of inexpensive catalyst. The structures of the targeted molecules were examined by FT-IR, 1H-NMR and mass spectral techniques.