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Silica gel-immobilized multidisciplinary materials applicable in stereoselective organocatalysis and HPLC separation

机译:硅胶固定化的多学科材料适用于立体选择性有机能分析和HPLC分离

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摘要

In this pilot study, we present novel bifunctional silica gel-immobilized materials applicable as heterogeneous organocatalysts and stationary phases in HPLC. The materials provided high stereoselectivity in both batch and continuous flow catalysis of a model Michael addition (cyclohexanone to (E)-beta-nitrostyrene). In the batch reaction, the catalysts proved their sustainable catalytic activity over five consecutive recycling experiments. Under continuous flow reaction conditions, the catalytic activity was found to be superior to the batch reaction, and moreover, the same immobilized materials were utilized as stationary phases in HPLC showing very good chemoselective separation of model acidic analytes.
机译:在该试点研究中,我们提出了一种新的双官能硅胶固定材料,适用于HPLC中的异构有机催化剂和固定相。 该材料在批次和连续流量催化中提供了高立体选择性,而MICHAEL添加的模型(环己酮至(e)-beta-硝基)。 在间歇反应中,催化剂在连续五次再循环实验中证明了其可持续催化活性。 在连续的流动条件下,发现催化活性优于间歇反应,此外,在HPLC中使用相同的固定化材料作为模型酸性分析物的非常好的化学选择性分离。

著录项

  • 来源
    《RSC Advances》 |2018年第3期|共8页
  • 作者

    Tuma J.; Kohout M.;

  • 作者单位

    Univ Chem &

    Technol Prague Dept Organ Chem Tech 5 Prague 16628 6 Czech Republic;

    Univ Chem &

    Technol Prague Dept Organ Chem Tech 5 Prague 16628 6 Czech Republic;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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