硅钨钼酸掺杂聚苯胺催化合成丁酮乙二醇缩酮 |
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引用本文: | 杨水金,童文龙.硅钨钼酸掺杂聚苯胺催化合成丁酮乙二醇缩酮[J].化工中间体,2007(6):7-9. |
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作者姓名: | 杨水金 童文龙 |
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作者单位: | 湖北师范学院,化学与环境工程系,湖北,黄石,435002 |
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摘 要: | 以H4SiW6Mo6O40(硅钨钼酸)/PAn(聚苯胺)为催化剂,通过丁酮和乙二醇反应合成了丁酮乙二醇缩酮。探讨了H4SiW6Mo6O40/PAn对缩酮反应的催化活性,较系统地研究了酮醇物质的量比、催化剂用量和反应时间诸因素对产品收率的影响。实验表明:在n(丁酮)∶n(乙二醇)=1∶1.9、催化剂用量为反应物料总质量的0.8%、带水剂环己烷的用量为6mL和反应时间1.0h的优化条件下,丁酮乙二醇缩酮的收率可达61.5%.
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关 键 词: | 丁酮乙二醇缩酮 硅钨钼酸 聚苯胺 催化 缩酮反应 |
文章编号: | 1006-253x(2007)06-007-3 |
修稿时间: | 2007-03-12 |
Catalytic Synthesis of Butanone Glycol Ketal with H4SiW6Mo6O40/PAn |
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Authors: | YANG Shui-jin TONG Wen-long |
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Affiliation: | Department of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002,Hubei, China |
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Abstract: | A new environmentally friendly catalyst H4SiW6Mo6O40/Pan(Ⅳ) was prepared. Butanone glycol ketal (Ⅰ) was synthesized from butanone (Ⅱ) and glycol (Ⅲ) in the presence of H4SiW6Mo6O40/PAn (Ⅳ). Factors influencing the yield were discussed and best reaction conditions were found. Experimental result showed that Ⅳ is an excellent catalyst. With n(Ⅱ):n(Ⅲ) = 1.0:1.9, w (Ⅳ) = 0.8 %, and reaction time = 1.0 h, yield of Ⅰ can reach 61.5 %. |
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Keywords: | butanone glycol ketal H4SiW6Mo6O40 polyaniline catalysis ketalation |
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