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CATALYTIC SYNTHESIS OF FRAISTONE BY TiSiW_(12)O_(40)/TiO_2

Bin Hu

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Abstract

A new environmental friendly catalyst,TiSiW12O40/TiO2 was prepared and characterized by IR and XRD.Synthesis of fraistone with ethyl acetoacetate and 1,2propylene glycol as reactants and TiSiW12O40/TiO2 as catalyst was studied.Results showed that TiSiW12O40/TiO2 was an excellent catalyst for the synthesis of fraistone,and the optimum reaction conditions was as follows: molar ratio of ethyl acetoacetate to 1,2propylene glycol 1∶1.5, dosage of catalyst 1.0% of feed stock,reaction time 1.0 h.under this condition,yield of fraistone was about 83.3%.The catalyst can be reused for at least six times.

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A new environmental friendly catalyst,TiSiW12O40/TiO2 was prepared and characterized by IR and XRD.Synthesis of fraistone with ethyl acetoacetate and 1,2propylene glycol as reactants and TiSiW12O40/TiO2 as catalyst was studied.Results showed that TiSiW12O40/TiO2 was an excellent catalyst for the synthesis of fraistone,and the optimum reaction conditions was as follows: molar ratio of ethyl acetoacetate to 1,2propylene glycol 1∶1.5, dosage of catalyst 1.0% of feed stock,reaction time 1.0 h.under this condition,yield of fraistone was about 83.3%.The catalyst can be reused for at least six times.

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Available abstract

A new environmental friendly catalyst,TiSiW12O40/TiO2 was prepared and characterized by IR and XRD.Synthesis of fraistone with ethyl acetoacetate and 1,2propylene glycol as reactants and TiSiW12O40/TiO2 as catalyst was studied.Results showed that TiSiW12O40/TiO2 was an excellent catalyst for the synthesis of fraistone,and the optimum reaction conditions was as follows: molar ratio of ethyl acetoacetate to 1,2propylene glycol 1∶1.5, dosage of catalyst 1.0% of feed stock,reaction time 1.0 h.under this condition,yield of fraistone was about 83.3%.The catalyst can be reused for at least six times.

Key concepts: Ethyl acetoacetate, Catalysis, Chemistry, Yield (engineering), Molar ratio, Nuclear chemistry, Reaction conditions, Organic chemistry

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