引用本文:
朱驯, 周秀芹, 顾建华, 项东升. 七水三氯化铈-碘化钠/二氧化硅-壳聚糖催化剂的制备及其在脱保护反应中的应用[J]. 应用化学,
2015, 32(12): 1386-1391.
doi:
10.11944/j.issn.1000-0518.2015.12.150176
Citation: ZHU Xun, ZHOU Xiuqin, GU Jianhua, XIANG Dongsheng. Preparation of Silica/Chitosan Supported Cerium(Ⅲ)Chloride Heptahydrate-Sodium Iodide and Its Application on the Cleavage of t-Butyl Ether and Dithioacetal[J]. Chinese Journal of Applied Chemistry, 2015, 32(12): 1386-1391. doi: 10.11944/j.issn.1000-0518.2015.12.150176
Citation: ZHU Xun, ZHOU Xiuqin, GU Jianhua, XIANG Dongsheng. Preparation of Silica/Chitosan Supported Cerium(Ⅲ)Chloride Heptahydrate-Sodium Iodide and Its Application on the Cleavage of t-Butyl Ether and Dithioacetal[J]. Chinese Journal of Applied Chemistry, 2015, 32(12): 1386-1391. doi: 10.11944/j.issn.1000-0518.2015.12.150176
七水三氯化铈-碘化钠/二氧化硅-壳聚糖催化剂的制备及其在脱保护反应中的应用
English
Preparation of Silica/Chitosan Supported Cerium(Ⅲ)Chloride Heptahydrate-Sodium Iodide and Its Application on the Cleavage of t-Butyl Ether and Dithioacetal
Abstract:
A series of CeCl3·7H2O/NaI catalysts immobilized on various supports such as Y zeolite,activated carbon,and SiO2-CS was prepared. Their catalytic performances were evaluated in the deprotection reactions of tert-butyl phenyl ether. The supported catalyst exhibits good stability and catalytic activity. To further investigate the application of SiO2-CS-CeCl3·7H2O/NaI system in other deprotection reactions,t-butyl ether and 1,3-dithioacetals were explored. In neutral conditions, the catalyst can effectively promote the deprotection reaction,and the use of strong acid and strong base can be avoided.
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Key words:
- silicon dioxide
- / chitosan
- / cerium(Ⅲ) chloride
- / sodium iodide
- / catalyst
- / deprotection reaction
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