The Effectiveness of Hydroxychalcone Synthesis By Using NaOH And Naoh+Zro₂ Montmorillonite Catalyst Through Conventional And Microwave Assisted Organic Synthesis (Maos) Method

The aim of this research is to investigate the effectiveness of hydroxychalcone synthesis via Claisen-Schmidt condensation catalyzed by NaOH and NaOH+ZrO2 montmorillonite catalysts by employing the conventional and microwave methods. Microwave method was an alternative innovation of the principle of green chemistry. The products were analyzed by FTIR, TLC scanner and ¹H-NMR. Synthesis of the hydroxychalcone compound was carried out between hydroxybenzaldehyde and acetophenone in the presence of 40% NaOH as a catalyst. A certain amount (0.1g) of ZrO₂ montmorillonite was added to the reaction system to determine its effect on the product of the two methods. Products which were produced through conventional methods were 10.37% and 24.31% of 2-hydroxychalcone for 3 hours. In the microwave method, which was added by NaOH and NaOH+ZrO₂ montmorillonite, irradiated using the microwave on 50% power produced 40.35% and 47.87% of 2-hydroxychalcone for 50 seconds. Based on these results, it can be concluded that the addition of ZrO₂ montmorillonite catalyst increase the effectiveness of the reaction and MAOS method has better effectiveness with percent yield 40.35% and 47.78% for 50 seconds than the conventional method.