One-Pot Synthesis of Carvyl Acetate from α-Pinene Oxide under Catalysis by Zeolite H-Beta 25

The one-pot synthesis of carvyl acetate from α-pinene oxide was systematically investigated with respect to solvent selection, reaction temperature, catalyst loading, reactant molar ratios, and solvent volume to optimize the reaction conditions. The highest yield of carvyl acetate (47% after 4 h) was obtained using 20 wt % H-Beta 25 zeolite at 90 °C, with a molar ratio of α-pinene oxide:acetic anhydride:N,N-dimethylformamide of 1:8:8. The scalability of the process and the reusability of the catalyst were also evaluated. The catalyst demonstrated good stability and could be regenerated by calcination for repeated use. Kinetic parameters, including reaction rate constants and activation energy, were determined to provide deeper mechanistic insight. The results suggest that this method offers a robust and potentially scalable route for the industrial production of carvyl acetate from α-pinene oxide.