Trihydrazinotrazine-grafting Fe_(3)O_(4)/SiO_(2) core-shell nanoparticles with expanded porous structure for organic reactions  

作　　者：Jamal Rahimi Seyedeh Shadi Mirmohammadi Ali Maleki 

机构地区：[1]Catalysts and Organic Synthesis Research Laboratory,Department of Chemistry,Iran University of Science and Technology,Tehran 16846-13114,Iran

出　　处：《Frontiers of Chemical Science and Engineering》2021年第4期1008-1020,共13页化学科学与工程前沿（英文版）

基　　金：This work was partially supported by the research council of the Iran University of Science and Technology.

摘　　要：This study focuses on the synthesis and characterization of a novel magnetic nanocomposite 2,4,6-trihydrazino-1,3,5-triazine(THDT)-fimctionalized with silica-coated iron oxide magnetic nanoparticles(MNPs).This nanocomposite has porous morphology decorated with the spherical MNPs.Through co-precipitation of iron salts,MNPs were obtained.The prepared THDT was placed on the chlorine surface-modified MNPs.The present environment-friendly nanocatalyst intensely accelerated the synthesis of highly functionalized tetra-hydrobenzo[b]pyran derivatives as well as reduced the reaction times and increased yields of the products.

关 键 词：trihydrazino-triazine POROUS magnetic NANOCATALYST green CHEMISTRY tetrahydrobenzo[b]pyrans 

分 类 号：O62[理学—有机化学]