Preparation and Characterization of Hollow MgO/SiO2 Nanocomposites and Using as Reusable Catalyst for Synthesis of 1 H-isochromenes

In the present study, a hollow MgO/SiO2 nanocatalyst with high alkaline properties was prepared. This heterogeneous catalyst prepared in several steps to create great active area and decrease density of catalyst. The framework applied for reaction cyclohexanone, malononitrile benzaldehyde synthesis 1 H-isocromene therough Michael addition aldol condensation at room temperature. this method, all done reactions were excellent yields products times. At end reaction, separated by simple filtration reuse runs elsewhere. base made. Thisheterogeneous decreasethe