作者: Zeinab Shahbazarab , Masoud Nasr‐Esfahani
DOI:
关键词:
摘要: The future age of sustainable development in organic synthesis requires natural sources with properties such as cost‐effectiveness, biodegradability, availability, durability, and environmentally friendly resources. An instance of material that has these favorable properties is the rice husk ash (RHA) covered the Fe3O4 nanoparticles, followed by melamine sulfonic acid immobilization. In this study, rice husk ash was obtained, and then by adding Fe3O4, melamine, and ClSO3H in different stages and with different solvents, Fe3O4@RHA@MEL‐SO3H nanocatalyst was prepared as a solid acid and characterized using TGA, FT‐IR, EDX, VSM, Fe‐SEM, and XRD methods. Then, the use of Fe3O4@RHA@MEL‐SO3H catalyst as a green nanocatalyst for 1‐amidoalkyl‐2‐naphthols preparation via multi‐component condensation of benzamide, aromatic aldehydes, and 2‐naphthol in solvent‐free conditions was …