Résumé EtOAc-dispersed magnetic nanoparticles (DMNPs) of γ-Fe2O3 represent a straightforward and green catalyst for the rapid three-component synthesis of 5-oxo-2-thioxo-3-thiophenecarboxylate derivatives as rhodanine skeletons via a single-pot domino process. The rhodanines were prepared over magnetic nanoparticles of γ-Fe2O3 without any salt or additives. Dispersed nano-γ-Fe2O3 have many advantages, such as stability in air, reusability, reactions with high efficiency, simple separation with magnetic external field from mixture reactions, chemical stability, and also low toxicity.
摘要 EtOAc-分散的γ-
Fe2O3磁性纳米粒子(
DMNPs)是一种直接、绿色的催化剂,可通过单锅多米诺过程,以
罗丹宁为骨架,快速合成 5-氧代-2-
硫酮-3-
噻吩羧酸酯衍
生物的三组分化合物。这些
罗丹宁是在γ- 的磁性纳米粒子上制备的,不含任何盐或添加剂。分散纳米γ- 具有许多优点,如在空气中稳定、可重复使用、反应效率高、利用磁场从混合物反应中分离简单、
化学性质稳定以及毒性低等。