...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>New Journal of Chemistry >Highly efficient FeNP-embedded hybrid bifunctional reduced graphene oxide for Knoevenagel condensation with active methylene compounds
【24h】

Highly efficient FeNP-embedded hybrid bifunctional reduced graphene oxide for Knoevenagel condensation with active methylene compounds

机译：高效的FENP嵌入式杂化双官能氧化物用活性亚甲基化合物进行Knoevenagel缩合

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have synthesized atypical highly active bifunctional FeNPs implanted on amino-modified reduced graphene oxide (FeNPs/Am@rGO) [where FeNPs = Fe nanoparticles; Am = Primary aromatic amine derivatives such as p-phenylenediamine (PPD) and/or aniline (AN)] as nanocatalysts via the acid-base dual-activation mechanism by introducing primary aromatic amines on the basal and/or edge sites of rGO that offer base characteristics and FeNPs anchored onto the surface of rGO that supply the Lewis acidic nature. These nanocatalysts were well corroborated through assorted physicochemical techniques. Impressively, FeNPs/Am@rGO significantly promoted a one-pot Knoevenagel condensation reaction with different aromatic aldehydes and active methylene compounds, thus bestowing excellent activity to give synthetically valuable multifunctional benzylidene derivatives. The impact of different parameters influencing the catalytic activity has also been monitored. Under the optimized conditions, FeNPs/PPD@rGO exclusively promoted the aforementioned reaction, leading to 100% benzaldehyde conversion with 100% yield of the product along with TON and TOF (h(-1)) values of 350.8 and 100.2, respectively. Besides, it could be effortlessly recycled by centrifugation after each run and reused afterwards without significant loss in its catalytic activity in a six cycle test.
机译：我们已经合成了植入氨基改性的石墨烯氧化物（FENPS / AM @ Rgo）的非典型高活性双官能FENPS [其中FENPS = Fe纳米颗粒; AM =主要芳族胺衍生物如P-苯二胺（PPD）和/或苯胺（AN）通过酸碱双活化机制作为纳米催化剂通过在提供的RGO的基础和/或边缘位点上引入初级芳族胺基部特征和FENPS锚定到RGO表面，供应Lewis酸性性质。这些纳米催化剂通过各种物理化学技术良好地证实。令人印象深刻地，FENPS / AM @ Rgo显着促进了一种与不同芳香族醛和活性亚甲基化合物的单壶Knoevenagel缩合反应，从而赋予优异的活性，得到合成有价值的多官能苄基衍生物。还监测了影响催化活性的不同参数的影响。在优化的条件下，FENPS / PPD @ RGO专门促进了上述反应，导致100％苯甲醛转化率为100％产率以及TON和TOF（H（-1））值分别为350.8和100.2。此外，在每次运行后，它可以毫不费力地通过离心再循环，然后重复使用，在六个循环试验中没有在其催化活性中的显着损失。

著录项

  • 来源
    《New Journal of Chemistry》 |2020年第7期|共14页
  • 作者

    Patel Dikin; Vithalani Ravi; Modi Chetan K.;

  • 作者单位

    Maharaja Sayajirao Univ Barada Fac Technol &

    Engn Appl Chem Dept Vadadara 390001 Gujarat India;

    Maharaja Sayajirao Univ Barada Fac Technol &

    Engn Appl Chem Dept Vadadara 390001 Gujarat India;

    Maharaja Sayajirao Univ Barada Fac Technol &

    Engn Appl Chem Dept Vadadara 390001 Gujarat India;

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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号