Catalytic Synthesis of Cyclohexanone 1,2-Propylene Ketal by Chitosan Supported With Iodine

doi:10.3696/j.issn.1672-6952.2010.01.010

Journal of Liaoning Petrochemical University ›› 2010, Vol. 30 ›› Issue (1): 33-36.DOI: 10.3696/j.issn.1672-6952.2010.01.010

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Catalytic Synthesis of Cyclohexanone 1,2-Propylene Ketal by Chitosan Supported With Iodine

HAN Chun-yu, HU Ning-bo, LIU Chun-sheng, LUO Gen-xiang



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

Received:2009-11-26 Published:2010-03-25 Online:2017-07-05

壳聚糖负载单质碘催化合成环己酮1,2-丙二醇缩酮

韩春玉,胡宁播,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:韩春玉(1972-),男,辽宁北宁市,讲师,硕士。

Abstract

Abstract:

Chitosan supported with Iodine was synthesized at room temperature and the structure was characterized by IR, XRD, and TGA. Ketalization of cyclohexanone and 1,2-propanediol catalyzed by chitosan supported with iodine was studied. The effect of reaction time, the ratio of alcohol and ketone, catalyst amount, and the volume of water-carrying agent on the yield of cyclohexanone 1,2-propylene ketal were investigated. The results show that the suitable condition for the reaction are as follows: the amount of cyclohexanone is 0.1 mol, the molar ratio of 1,2-propanediol and cyclohexanone is 1.3, the amount of catalyst is 0.4 g, the volume of cyclohexane used as the wate-carrying agent is 8 mL, reaction time is 60 min. The ketal yield is up to 96.3%. The catalyst could be reused five times without significant declining of catalytic activity.

Key words: Cyclohexanone 1,2-propylene ketal , Synthesis , , Chitosan doped with iodine , , Catalysis

摘要： 室温下合成壳聚糖负载单质碘,经红外光谱、X射线衍射和热重分析进行表征,并对壳聚糖负载单质
碘催化环己酮与1,2-丙二醇的缩酮化反应进行研究。考察了反应时间、醇酮物质的量比、催化剂质量、带水剂体积
等因素对环己酮1,2-丙二醇缩酮收率的影响。实验结果表明,在回流条件下,环己酮物质的量为0.1mol,醇酮物
质的量比为1.3,催化剂质量为0.4g,带水剂环己烷体积为8mL,反应时间为60min,缩酮收率可达到96.3%。催化
剂重复使用5次后,催化效果未见明显降低。

关键词: 环己酮1, 2-丙二醇缩酮, 合成, 壳聚糖负载单质碘, 催化

HAN Chun-yu, HU Ning-bo, LIU Chun-sheng, LUO Gen-xiang. Catalytic Synthesis of Cyclohexanone 1,2-Propylene Ketal by Chitosan Supported With Iodine[J]. Journal of Liaoning Petrochemical University, 2010, 30(1): 33-36.

韩春玉,胡宁播,刘春生,罗根祥. 壳聚糖负载单质碘催化合成环己酮1,2-丙二醇缩酮[J]. 辽宁石油化工大学学报, 2010, 30(1): 33-36.

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Catalytic Synthesis of Cyclohexanone 1,2-Propylene Ketal by Chitosan Supported With Iodine

壳聚糖负载单质碘催化合成环己酮1,2-丙二醇缩酮

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