Synthesis of Cyclohexanone1,2-Propylene Ketal Catalyzed by Potassium Dodecatungstocobaltate Trihydrate

doi:10.3696/j.issn.1672-6952.2010.01.004

Journal of Liaoning Petrochemical University ›› 2010, Vol. 30 ›› Issue (1): 11-14.DOI: 10.3696/j.issn.1672-6952.2010.01.004

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Synthesis of Cyclohexanone1,2-Propylene Ketal Catalyzed by Potassium Dodecatungstocobaltate Trihydrate

LAI Jun-ling, HAN Chun-yu, LIU Chun-sheng, LUO Gen-xiang

School of Chemistry and Materials Science，Liaoning Shihua University，Fushun Liaoning 113001, P.R.China

Received:2009-08-29 Published:2010-03-25 Online:2017-07-05

K₅CoW₁₂O₄₀·3H₂O催化合成环己酮1,2-丙二醇缩酮

赖君玲,韩春玉,刘春生,罗根祥

辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

作者简介:赖君玲(1976-),女,辽宁大石桥市,讲师,硕士。

Abstract

Abstract:

The catalytic activity of potassium dodecatungstocobaltate trihydrate (K₅CoW₁₂O₄₀·3H₂O) on the reaction between cyclohexanone and 1,2-propylene ketal. The effects of the cyclohexanone/1,2-propylene alcohol molar ratio, the amount of the catalyst agent and water-carrying agent, the reaction time, the using regenerated catalyst on the yield of Cyclohexanone1,2-propylene ketal were systematically investigated. The results show that potassium dodecatungstocobaltate trihydrate (K₅CoW₁₂O₄₀·3H₂O) is a good water-carrying agent for the reaction between cyclohexanone and 1,2-propylene ketal. The results showed that the suitable condition for the reaction are as follows: benzaldehyde/1,2-propylene molar ratio is 1∶1.4, the amount of potassium dodecatungstocobaltate trihydrate (K₅CoW₁₂O₄₀·3H₂O) is 0.5 g, the volume of cyclohexane is 9 mL, and reaction time is 70 min. The maximum yield of benzaldehyde 1,2-propylene ketal is up to 94.2%.

Key words: Cyclohexanone 1,2-propylene ketal , , Potassium dodecatungstocobaltate trihydrate (K₅CoW₁₂O₄₀·3H₂O) , Catalysis , , Ketalation

摘要： 研究了杂多化合物K₅CoW₁₂O₄₀·3H₂O 作为催化剂对环己酮和1,2-丙二醇缩酮的催化活性。系
统考察了酮醇物质的量比、催化剂质量、带水剂体积、反应时间和催化剂重复使用性等因素对产品收率的影响。实
验结果表明,杂多化合物K₅CoW₁₂O₄₀·3H₂O 是合成环己酮1,2-丙二醇缩酮的良好催化剂,在酮醇物质的量比为
1∶1.4、催化剂质量为0.5g、带水剂环己烷体积为9mL、反应时间为70min的最佳条件下,环己酮1,2-丙二醇缩
酮的收率最高可达94.2%。

关键词: 环己酮1, 2-丙二醇缩酮 , , 杂多化合物K₅CoW₁₂O₄₀·, 3H₂O , , 催化 , , , 缩酮反应

LAI Jun-ling, HAN Chun-yu, LIU Chun-sheng, LUO Gen-xiang.

Synthesis of Cyclohexanone1,2-Propylene Ketal Catalyzed by Potassium Dodecatungstocobaltate Trihydrate

[J]. Journal of Liaoning Petrochemical University, 2010, 30(1): 11-14.

赖君玲,韩春玉,刘春生,罗根祥. K₅CoW₁₂O₄₀·3H₂O催化合成环己酮1,2-丙二醇缩酮[J]. 辽宁石油化工大学学报, 2010, 30(1): 11-14.

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Synthesis of Cyclohexanone1,2-Propylene Ketal Catalyzed by Potassium Dodecatungstocobaltate Trihydrate

K₅CoW₁₂O₄₀·3H₂O催化合成环己酮1,2-丙二醇缩酮

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K₅CoW₁₂O₄₀·3H₂O催化合成环己酮1,2-丙二醇缩酮