色谱 ›› 2020, Vol. 38 ›› Issue (4): 476-483.DOI: 10.3724/SP.J.1123.2019.08044

• 研究论文 • 上一篇    下一篇

纤维素苯基氨基甲酸酯的均相合成及其手性拆分性能评价

尹春春1,2, 杨田田1,2, 张金明1*(), 张军1,2,*()   

  1. 1. 中国科学院化学研究所,中国科学院工程塑料重点实验室, 北京 100190
    2. 中国科学院大学,北京 100049
  • 收稿日期:2019-08-30 出版日期:2020-04-08 发布日期:2020-12-10
  • 通讯作者: 张金明1,张军
  • 基金资助:
    国家自然科学基金项目(51425307);国家自然科学基金项目(51573196);中国科学院青年创新促进会项目(2018040)

Homogeneous synthesis of cellulose phenylcarbamates and evaluation of their enantioseparation capabilities

YIN Chunchun1,2, YANG Tiantian1,2, ZHANG Jinming*(), ZHANG Jun1,2,*()   

  1. 1. CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-08-30 Online:2020-04-08 Published:2020-12-10
  • Contact: ZHANG Jinming, ZHANG Jun
  • Supported by:
    National Natural Science Foundation of China(51425307);National Natural Science Foundation of China(51573196);Project of the Youth Innovation Promotion Association of CAS(2018040)

摘要:

认识多糖类手性拆分材料的结构性能关系对于构建新型高效手性固定相具有重要指导意义。该文中,以1-烯丙基-3-甲基咪唑氯离子液体为介质,合成了系列不同结构的纤维素苯基氨基甲酸酯,进而考察了取代度、取代基团种类和位置对产物手性拆分性能的影响。结果表明,随着取代度的增加,纤维素苯基氨基甲酸酯对于绝大部分手性分子的拆分效果提高;苯环上取代基团的种类和位置对纤维素苯基氨基甲酸酯手性拆分性能影响显著,弱吸电子基团氯基和给电子基团甲基在合适的位置能显著增强纤维素苯基氨基甲酸酯的手性拆分性能;纤维素3-甲基-4-氯苯基氨基甲酸酯、3,5-二氯苯基氨基甲酸酯和2-甲基-5-氯苯基氨基甲酸酯对一些手性分子的拆分效果优于纤维素3,5-二甲基苯基氨基甲酸酯。

关键词: 手性拆分, 纤维素, 纤维素苯基氨基甲酸酯, 均相合成

Abstract:

Understanding the structure-property relationship of polysaccharide derivatives is of great significance toward the development of novel chiral stationary phases. In this work, we used an ionic liquid, 1-allyl-3-methylimidazolium chloride (AmimCl), as the solvent and introduced phenyl isocyanates with various substituents into cellulose to obtain a series of cellulose phenylcarbamates. The effects of the degree of substitution (DS), as well as the type and position of the substituents, on the chiral separation capability of the cellulose phenylcarbamates were researched in detail. With an increase in the DS, the chiral recognition capability of the cellulose phenylcarbamates improved dramatically for most of the chiral analytes. Fully substituted cellulose phenylcarbamates showed the best enantioseparation capabilities. In addition, the type and position of the substituents on the benzene ring significantly influenced the chiral separation capabilities of the cellulose phenylcarbamates. Cellulose 3-methyl-4-chlorophenylcarbamate, 3,5-dichlorophenylcarbamate, and 2-methyl-5-chlorophenylcarbamate had better chiral recognition capabilities than cellulose 3,5-dimethylphenylcarbamate for some chiral analytes.

Key words: enantioseparation, cellulose, cellulose phenylcarbamates, homogeneous synthesis

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