| H4SiW12O40-PAn催化剂催化合成苯甲醛乙二醇缩醛 |
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| 引用本文： | 杨水金,童文龙.H4SiW12O40-PAn催化剂催化合成苯甲醛乙二醇缩醛[J].香料香精化妆品,2004(5):17-19,26. |
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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
(杨水金)，湖北师范学院化学与环境工程系 湖北黄石435002(童文龙) |
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| 摘 要： | 报道了以自制的H4SiW12 O40 (硅钨酸 ) -PAn (聚苯胺 )为催化剂 ,通过苯甲醛和乙二醇为原料合成了苯甲醛乙二醇缩醛。实验表明 :合成苯甲醛乙二醇缩醛适宜反应条件为 :n(苯甲醛 ) /n(乙二醇 ) =1 /2 .0 ,催化剂用量为反应物料总质量的 1 .0 % ,环己烷为带水剂 ,反应时间 1 .0h。上述条件下 ,苯甲醛乙二醇缩醛的收率可达 86.7% .
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| 关 键 词： | 苯甲醛乙二醇缩醛 硅钨酸 聚苯胺 催化 缩醛反应 |
Synthesis of Benzaldehyde Glycol Acetal Catalyzed by Using H_4SiW_(12)O_(40)-PAn |
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| Yang Shuijin,Tong Wenlong.Synthesis of Benzaldehyde Glycol Acetal Catalyzed by Using H_4SiW_(12)O_(40)-PAn[J].Flavour Fragrance Cosmetics,2004(5):17-19,26. |
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| Authors: | Yang Shuijin Tong Wenlong |
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| Abstract: | Benzaldehyde glycol acetal was synthesized from benzaldehyde and glycol in the presence of H 4 SiW 12 O 40 -PAn. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are: molar ratio of benzaldehyde to glycol is 1:2.0, the quantity of catalyst is equal to 1.0% feed stock, and the reaction time is 1.0 h. H 4 SiW 12 O 40 -PAn is an excellent catalyst for synthesizing benzaldehyde glycol acetal and its yield can reach over 86.7%. |
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| Keywords: | Benzaldehyde glycol acetal H 4 SiW 12 O 40 -PAn Catalysis Acetalization |
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