An efficient synthesis of polyhydroacridine derivatives by the three-component reaction of aldehydes, Amines and dimedone in ionic liquid

In this paper the preparation of 3,3,6,6-tetramethyl-9,10-diaryl-1,2,3,4,5,6,7,8,9,10-decahydroacridine-1,8-dione derivatives from aldehydes, aromatic amines and 5,5-dimethyl-1,3-cyclohexanedione in 1-n-butyl-3-methylimidazolium bromide ([bmim]Br) is described. The structures of these compounds were characterized by elemental analysis, IR and H-1 NMR spectra and further confirmed by single crystal X-ray diffraction analysis.