Five-component domino synthesis of tetrahydropyridines using hexagonal PbCr
x
Fe12−x
O19 as efficient magnetic nanocatalyst
作者:Ali Sobhani-Nasab、Abolfazl Ziarati、Mehdi Rahimi-Nasrabadi、Mohammad Reza Ganjali、Alireza Badiei
DOI:10.1007/s11164-017-2982-8
日期:2017.11
tools to study the structure, morphology, and composition of the nanostructures. The optimal product was further evaluated as a reusable magnetic catalyst in a five-component reaction for synthesis of highly functionalized tetrahydropyridines (HF-THP). All reactions completed in short time and all products were obtained in good yield in presence of the magnetic nanocatalyst. Besides, it was found that
摘要 六角形的PbCr x Fe 12− x O 19纳米结构是通过使用丙二酸作为燃料的溶胶-凝胶自燃(SGAC)方法制备的。扫描电子显微镜(SEM),透射电子显微镜(TEM),傅立叶变换红外(FT-IR)光谱,X射线衍射(XRD)分析和振动样品磁力分析法被用作研究结构,形态,和纳米结构的组成。进一步评估了最佳产物作为五组分反应中可重复使用的磁性催化剂,以合成高度官能化的四氢吡啶(HF-THP)。在磁性纳米催化剂的存在下,所有反应在短时间内完成并且所有产物以良好的产率获得。此外,发现铅铬 x Fe 12− x O 19可以回收五次,而催化活性没有任何明显的损失。 图形概要