2012•Journal of Jinggangshan UniversityRequires access

CATALYTIC SYNTHESIS OF BUTYRALDEHYDE GLYCOL ACETAL WITH H_4SiW_6Mo_6O_(40)/SiO_2

Cheng Hai-tao

Abstract

A novel catalyst,H4SiW6Mo6O40/SiO2 was synthesized by a sol-gel technique,and characterized by FT-IR and XRD.Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol in the presence of H4SiW6Mo6O40/SiO2 as catalyst.The factors influencing the synthesis were discussed and the best reaction conditions were found out.Experimental results showed that H4SiW6Mo6O40/SiO2 is an excellent catalyst.Under the exeperimental conditions of molar ratio of butyraldehyde to glycol is 1:1.3,the mass ratio of the catalyst is 1.0% of all the reactants,volume of cyclohexane is 8 mL,and the reaction time is 60 minutes,the yield of butyraldehyde glycol acetal can reach 93.0 %.

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Key concepts: Butyraldehyde, Acetal, Cyclohexane, Catalysis, Chemistry, Molar ratio, Yield (engineering), Organic chemistry