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首页> 外文期刊>RSC Advances >Imidazolyl activated carbon refluxed with ethanediamine as reusable heterogeneous catalysts for Michael addition
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Imidazolyl activated carbon refluxed with ethanediamine as reusable heterogeneous catalysts for Michael addition

机译：咪唑基活性炭用乙二胺回流作为可重复使用的迈克尔的非均相催化剂

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摘要

Imidazolyl activated carbon, denoted as AC-N, was prepared via oxidation of AC with HNO3 (AC-O) and then refluxed with ethanediamine under mild conditions. The results showed that the N content of AC-N was 10.3%, and the surface alkali group density of AC-N was 0.96 mmol g(-1) from 0.78 mmol g(-1) carboxy group of AC-O by Boehm titration. It was revealed that the basic functional groups on the AC-N surface included imidazole and amine groups, from XPS and FT-IR. Evaluated with Michael addition of furfural, the catalytic performance of AC-N showed higher conversion and selectivity than that of commonly used base catalyst such as 2-methylimidazole and KOH. Very remarkably, AC-N showed extraordinary recyclability, in that there was no decline of conversion and selectivity after being recycled 5 times.
机译：通过用HNO 3（AC-O）的AC氧化制备为AC-N的咪唑基活性炭，然后在温和条件下用乙二胺回流。 结果表明，AC-N的N含量为10.3％，AC-N的表面碱基密度由Boehm滴定的0.78mmol g（-1）羧基的0.96mmol g（-1）为0.96mmol g（-1） 。 据透露，AC-N表面上的基本官能团包括XPS和FT-IR的咪唑和胺基团。 用糠醛添加糠醛评估，AC-N的催化性能显示出比常用碱催化剂如2-甲基咪唑和KOH的转化性和选择性更高。 非常值得注意地，AC-N表现出非凡的可回收性，因为在回收5次后，转化和选择性没有下降。

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  • 来源
    《RSC Advances》 |2019年第1期|共7页
  • 作者

    Liu Wenzhu; Xiao Jiafu; Xu Qiong; Liu Xianxiang; Zhong Sheng; Huang Hua; Zheng Min; Kirk Steven Robert; Yin Dulin;

  • 作者单位

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

    Hunan Changling Petrochem S&

    T Developing Co Ltd Yueyang 414012 Peoples R China;

    Hunan Changling Petrochem S&

    T Developing Co Ltd Yueyang 414012 Peoples R China;

    Hunan First Normal Univ Changsha 410205 Hunan Peoples R China;

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

    Hunan Normal Univ Coll Chem &

    Chem Engn Natl &

    Local Joint Engn Lab New Petrochem Mat &

    F Changsha 410081 Hunan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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