硅胶负载硫酸锆催化合成苯乙醛缩乙二醇

Speciality Petrochemicals(2008)

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Abstract
以苯乙醛和乙二醇为原料,硅胶负载硫酸锆[Zr(SO_4)_2/SiO_2]为催化剂合成了苯乙醛缩乙二醇,考察了醛醇摩尔配比、反应时间、催化剂用量及其稳定性等因素对收率的影响。结果表明,硅胶负载硫酸锆是合成苯乙醛缩乙二醇的理想催化剂,较优反应条件为:苯乙醛用量0.1 mol,n(苯乙醛):n(乙二醇)=1.0:1.5,催化剂用量每0.1 mol 苯乙醛0.2 g,带水剂环己烷12 mL,回流反应1.5 h,苯乙醛缩乙二醇收率大于96%。
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Key words
phenylacetaldehyde,silica gel loaded zirconium sulfate,ethyleneglycol,phenylacetaldehyde ethyleneglycol acetal
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