Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (12): 1386-1391.DOI: 10.11944/j.issn.1000-0518.2015.12.150176

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Preparation of Silica/Chitosan Supported Cerium(Ⅲ) Chloride Heptahydrate-Sodium Iodide and Its Application on the Cleavage of t-Butyl Ether and Dithioacetal

ZHU Xunab*(),ZHOU Xiuqina,GU Jianhuaa,XIANG Dongshenga   

  1. aYancheng Institute of Industry Technology,Yancheng,Jiangsu 224005,China
    bNanjing University of Science and Technology,Nanjing 210094,China
  • Received:2015-05-19 Accepted:2015-08-21 Published:2015-12-01 Online:2015-12-01
  • Contact: ZHU Xun
  • Supported by:
    Supported by the Natural Science Foundation of Jiangsu Province(No.BK20141260), the Six Talented Summit Funding of Jiangsu Province(No.2011JZ 017)

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.

Key words: silicon dioxide, chitosan, cerium(Ⅲ) chloride, sodium iodide, catalyst, deprotection reaction