Synthesis and characterization of the novel diamine-functionalized Fe3O4@SiO2nanocatalyst and its application for one-pot three-component synthesis of chromenes
| Autor: | Ali Maleki, Razieh Firouzi Haji, Reza Ghalavand |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Scanning electron microscope General Chemistry 010402 general chemistry Condensation reaction 01 natural sciences 0104 chemical sciences Catalysis Nanomaterials Inorganic Chemistry chemistry.chemical_compound chemistry Diamine Dimedone Organic chemistry Spectroscopy Nuclear chemistry Malononitrile |
| Zdroj: | Applied Organometallic Chemistry. 32:e3916 |
| ISSN: | 0268-2605 |
| DOI: | 10.1002/aoc.3916 |
| Popis: | Fe3O4@SiO2@propyltriethoxysilane@o-phenylendiamine as an environmentally-benign functionalized silica-coated magnetic organometallic nanomaterial has been synthesized and characterized by Fourier transforms infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) images and energy dispersive X-ray (EDX) and vibrating sample magnetometer (VSM) analyses. Then, its catalytic activity was investigated for the one-pot three-component condensation reaction between dimedone, malononitrile and various substituted aromatic aldehydes to afford the corresponding 2-amino-4H-chromene derivatives under mild reaction conditions. This nanocatalyst can be easily recovered from the reaction mixture by using a magnet and reused for at least five times without significant decrease in catalytic activity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text