Catalytic application of some perovskite nano-oxides for the one-pot synthesis of 1,8-dioxodecahydroacridines

Perovskite-type mixed oxides with the formula of La 0.5 Gd 0.2 Pb 0.3 CoO 3 and Gd 0.7 Sr 0.3 MnO 3 have been synthesized using the citrate gel method. The synthesized perovskites were characterized via FTIR, XRD, SEM, N 2 sorption analysis, and energy dispersion X-ray spectroscopic analysis. XRD results show that single phase perovskites have been obtained. On the other hand, N 2 sorption analysis of La 0.5 Gd 0.2 Pb 0.3 CoO 3 and Gd 0.7 Sr 0.3 MnO 3 revealed that perovskites with total BET surface area of 0.75, 8.66 m 2 g −1 and average pore diameter of 59.21, 28.782 nm have been synthesized. Moreover, the catalytic activities of the synthesized perovskites as multi-functional catalysts were evaluated using a multicomponent reaction of dimedone, aromatic aldehydes, and ammonium acetate under solvent-free conditions.