Eco-friendly one-pot, three-component synthesis of novel derivatives of kojic acid by the Mannich-type reaction under solvent-free ball-milling conditions
amines in the presence of cerium(III) sulphate as an efficient and recyclable catalyst in ball-milling undersolvent-freeconditions at room temperature. This synthesis method offers several advantages, including a green and eco-friendly protocol, operational simplicity, mild reaction conditions, short reaction time, higher yields and easy workup procedures. The workup of these very clean reactions
Synthesis and application of novel 1,2,3-triazolylferrocene-containing ionic liquid supported on Fe<sub>3</sub>
O<sub>4</sub>
nanocatalyst in the synthesis of new pyran-substituted Betti bases
作者:Mahdi Gholamhosseini-Nazari、Somayeh Esmati、Kazem D. Safa、Alireza Khataee、Reza Teimuri-Mofrad
DOI:10.1002/aoc.4701
日期:2019.4
recyclable heterogeneous nanocatalyst. The catalytic activity of the novel magnetic nanoparticles was evaluated in the one‐pot three‐component synthesis of a wide variety of Betti bases. A simple, facile and highly efficient green method has been developed for the synthesis of kojic acid‐containing Betti base derivatives at room temperature. Additionally, this new protocol has notable advantages such as short
一种基于三唑鎓的新型磁性二茂铁标记的离子液体,[Fe 3 O 4 @SiO 2 @ Triazol-Fc] [HCO 3,已经合成并已成功引入可循环利用的多相纳米催化剂。在多种Betti碱的单锅三组分合成中评估了新型磁性纳米颗粒的催化活性。已开发出一种简单,简便且高效的绿色方法,用于在室温下合成含曲酸的Betti碱衍生物。另外,该新方案具有显着的优势,例如反应时间短,绿色反应条件,产率高以及后处理和纯化步骤简单。而且,可以使用外部磁场容易地回收新型纳米催化剂,并将其连续六个反应周期重复使用而不会显着降低活性。使用傅立叶变换红外光谱对新合成的纳米催化剂进行了表征,