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Catalytic synthesis of n-butyraldehyde glycol acetal with SO_4~(2-)/TiO_2-La_2O_3

Yang Shui-jin, DU Xin-xian

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Abstract

n-Butyraldehyde glycol acetal was synthesized from n-butyraldehyde(Ⅱ)and glycol as raw materials in the presence of SO~(2-)_4/TiO_2-La_2O_3 as catalyst.Factors influencing the product yield were discussed and optium reaction conditions were found.Experimental results showed that SO~(2-)_4/TiO_2-La_2O_3 is an excellent catalyst.With molar ratio of n-butyraldehyde to glycol =1.0∶1.5,catalyst dosage=0.50 %(mass ratio of catalyst to total reactants),using cyclohexane as water carrier and reaction time 1.0 h,the yield of the product achieves 95.3 %.

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What this paper is about

n-Butyraldehyde glycol acetal was synthesized from n-butyraldehyde(Ⅱ)and glycol as raw materials in the presence of SO~(2-)_4/TiO_2-La_2O_3 as catalyst.Factors influencing the product yield were discussed and optium reaction conditions were found.Experimental results showed that SO~(2-)_4/TiO_2-La_2O_3 is an excellent catalyst.With molar ratio of n-butyraldehyde to glycol =1.0∶1.5,catalyst dosage=0.50 %(mass ratio of catalyst to total reactants),using cyclohexane as water carrier and reaction time 1.0 h,the yield of the product achieves 95.3 %.

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Available abstract

n-Butyraldehyde glycol acetal was synthesized from n-butyraldehyde(Ⅱ)and glycol as raw materials in the presence of SO~(2-)_4/TiO_2-La_2O_3 as catalyst.Factors influencing the product yield were discussed and optium reaction conditions were found.Experimental results showed that SO~(2-)_4/TiO_2-La_2O_3 is an excellent catalyst.With molar ratio of n-butyraldehyde to glycol =1.0∶1.5,catalyst dosage=0.50 %(mass ratio of catalyst to total reactants),using cyclohexane as water carrier and reaction time 1.0 h,the yield of the product achieves 95.3 %.

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

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Catalytic synthesis of n-butyraldehyde glycol acetal with SO_4~(2-)/TiO_2-La_2O_3 — Research Paper | ScholarLens