Investigation on the Synthesis of oterpinene and maleic anhydride adduct Catalyzed by Heteropolyacid

摘要

á-pinene was isomerized in the presence of phosphomolybdic acid. One of the products, a-terpinene, can react with maleic anhydride to form a-terpinene and maleic anhydride adduct (TMA). The optimum conditions for the synthesis of TMA have been investigated. The yield of 83% can be attained with the heterogeneous catalyst phosphomolybdic acid on active carbon (PMA/C), and can maintain ~67% after the catalyst was used for 5 times.