Magnetite–Sulfuric Acid Magnetic Nanoparticles: Preparation and Applica­tion in Synthesis of Mono-, Bis-, and Tris-14H-Dibenzo[a,j]xanthen-14-yl­arenes under Solvent-Free Conditions

Autor:	Marzie Karimi, Zeinab Dalirnasab, Ali Reza Karimi
Rok vydání:	2014
Předmět:	Thermogravimetric analysis Chemistry Aryl Organic Chemistry Inorganic chemistry Nanoparticle Infrared spectroscopy Sulfuric acid Heterogeneous catalysis Catalysis chemistry.chemical_compound Magnetic nanoparticles Nuclear chemistry
Zdroj:	Synthesis. 46:917-922
ISSN:	1437-210X 0039-7881
DOI:	10.1055/s-0033-1338595
Popis:	Novel magnetite–sulfuric acid (Fe 3 O 4 ·SO 3 H) magnetic nanoparticles were prepared by the direct reaction of chlorosulfonic acid with magnetite nanoparticles, and characterized by IR spectroscopy, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. The catalytic activity of the Fe 3 O 4 ·SO 3 H nanoparticles in the reaction of 2-naphthol with aryl mono-, di- and trialdehydes was examined, and these catalysts were shown to exhibit remarkable catalytic performance in the solvent-free synthesis of mono-, bis-, and tris-14 H -dibenzo[ a , j ]xanthen-14-ylarenes. The catalyst retained its activity for several cycles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2a09b818b5101a433ba52dc10cdca87a https://doi.org/10.1055/s-0033-1338595 Zobrazit plný text záznamu