Abstract
The acidic hydrolysis of goniothalamin was studied on the spectrophotometric kinetic study at different concentration of hydrochloric acid and temperature to determine the stability of the compound. Stability tests were performed using UV-VIS detection. This is a two-step reaction that involves formation of intermediate product. Rate constant of reactant forming intermediate product obeyed pseudo-first-order kinetic, while the second step to form final product is independent on the concentration of HCl. The structure of final products was identified by NMR and MS. The acidic hydrolysis pathway was proposed to involve the opening of lactone ring, followed by dehydration and formation of a double bond.
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