In this study, a series of 2-amino-4H-chromenes and spirochromenes were elaborated and synthesized via a new sustainable one-pot three-component strategy from easily available materials including phloroglucinol, malononitrile, and aldehydes/isatins. Ceria nanoparticles (CeO2 NPs) were successfully applied as an effective catalyst that recycled and reused with a marginal decrement in its catalytic performance
在这项研究中,一系列 2-
氨基-4 H-色烯和螺色烯通过一种新的可持续一锅三组分策略从
间苯三酚、
丙二腈和醛/
靛红等容易获得的材料中进行了阐述和合成。
二氧化铈纳米粒子(CeO 2 NPs)被成功地用作一种有效的催化剂,可回收和再利用,其催化性能略有下降。所描述的纳米催化剂的
路易斯酸碱性质提供了高产率的目标产物。该反应在作为绿色溶剂的
乙醇中进行,以创建一个环境友好的过程。该方法的其他显着优点是底物范围广、操作简单、反应时间短、无需柱层析纯化。