Efficient metal-free green syntheses of 4<i>H</i>-chromenes and 3-amino alkylated indoles using a reusable graphite oxide carbocatalyst under aqueous and solvent-free reaction conditions
作者:Lenida Kyndiah、Fillip Kumar Sarkar、Ajay Gupta、Amarta Kumar Pal
DOI:10.1039/d2nj00756h
日期:——
Graphite oxide (GO) was utilized for the one-pot three-component syntheses of pharmaceutically important 4H-chromenes and 3-amino alkylated indoles in water and solvent-free reaction conditions, respectively. Spectroscopic techniques such as FT-IR, XPS, SEM, TEM, SAED, EDX, PXRD, Raman, and TGA confirmed the formation and thermal stability of GO. These protocols provide green and sustainable reaction
氧化石墨 (GO) 分别用于在水和无溶剂反应条件下一锅三组分合成药学上重要的 4 H-色烯和 3-氨基烷基化吲哚。FT-IR、XPS、SEM、TEM、SAED、EDX、PXRD、拉曼和 TGA 等光谱技术证实了 GO 的形成和热稳定性。这些协议提供了绿色和可持续的反应条件,包括优异的催化活性、良好的产品产率、催化剂的可重复使用性、高官能团耐受性和克级合成。此外,本方法排除了金属毒性、金属废物处理、产品中的金属污染以及挥发性有机溶剂的使用等问题。