二氧化硅负载硅钨钼酸催化合成丁酮1,2-丙二醇缩酮

Chemical Intermediates(2011)

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Abstract
以二氧化硅负载硅钨钼酸为催化剂,以丁酮和1,2-丙二醇为原料催化合成丁酮1,2-丙二醇缩酮。探讨了丁酮与1,2-丙二醇量比、催化剂用量、带水剂及反应时间对收率的影响。实验表明,在n(丁酮)∶n(1,2-丙二醇)=1:1.4,催化剂用量为反应物料总质量的1.4%,带水剂环己烷10mL,反应时间70min的优化条件下,丁酮1,2-丙二醇缩酮的收率可达83.1%。
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Key words
catalysis,2-propanediol ketal,Butanone 1,H4SiW6Mo6O40/SiO2,katalation
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