Catalytic Synthesis of n-Butyraldehyde 1,2-propanediol Acetal over H4SiW12O40-PAn
Catalytic Synthesis of n-Butyraldehyde 1,2-propanediol Acetal over H4SiW12O40-PAn
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DOI：
10.1007/s11458-005-0001-x
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发表时间：
2006-03
期刊：
影响因子：
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通讯作者：
Yang Shui-jin;Shi Shaomin;Yu Xie-qing
中科院分区：
文献类型：
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作者：
Yang Shui-jin;Shi Shaomin;Yu Xie-qing
制备了一种新型环保催化剂H4SiW12O40-聚苯胺(PAn)，并在H4SiW12O40-PAn存在下，以正丁醛和1,2-丙二醇为原料合成正丁醛1,2-丙二醇缩醛。讨论了合成的影响因素，确定了最佳反应条件：正丁醛与1,2-丙二醇的摩尔比为1:1.5，催化剂用量为原料的1.2%，反应时间1.0 h。 H4SiW12O40-PAn是合成正丁醛1,2-丙二醇缩醛的优良催化剂，收率可达95.2%以上。
A new environmentally friendly catalyst, H4SiW12O40-polyaniline (PAn), was prepared, andn-butyraldehyde 1,2-propanediol acetal was synthesized fromn-butyraldehyde and 1,2-propanediol in the presence of H4SiW12O40-PAn. The influence factors of the synthesis were discussed, and the best reaction conditions were found: the molar ratio ofn-butyraldehyde to 1,2-propanediol is 1:1.5, the amount of catalyst used is 1.2% of feed stock, and the reaction time is 1.0 h. H4SiW12O40-PAn is an excellent catalyst for synthesizingn-butyraldehyde 1,2-propanediol acetal, and the yield can reach more than 95.2%.