2003•Journal of Molecular Catalysis(China)Requires access

Synthesis of Ethyl Acetoacetate Ethylene Ketal Catalyzed by using TiSiW_(12)O_(40)/TiO_2

Bin Hu

Abstract

Ethyl acetoacetate ethylene ketal was synthesized from ethyl acetoacetate and glycol in the presence of TiSiW12O40/TiO2. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are that molar ratio of ethyl acetoacetate to glycol was 1∶1.5, the quantity of catalyst adding was equal to 1.0% feed stock, and the reaction time was 50 min. TiSiW12O40/TiO2 was an excellent catalyst for synthetizing ethyl acetoacetate ethylene ketal, the yield can reach over 84.1%.

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Key concepts: Ethyl acetoacetate, Molar ratio, Catalysis, Ethylene glycol, Chemistry, Ethylene, Yield (engineering), Organic chemistry