Synthesis, characterization, and application of Fe₃O₄-SA-PPCA as a novel nanomagnetic reusable catalyst for the efficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones and polyhydroquinolines

Abstract

Nano magnetic Fe3O4-PPCA prepared by one pot co-precipitation of iron oxide with PPCA and used as a catalyst for the preparation of DHQs and PHQs.

Synthesis and Characterization of Sulfamic Acid-Functionalized Nanoparticles and Study of Its Catalytic Activity for the Oxidation of Sulfides to Sulfoxides

“…After full characterization of synthesized catalyst and in continuation of our studies on environmentally benign chemical processes, [24][25][26][27] in the present work we disclose that Fe3O4-SA-PPCA can be used as a new heterogeneous catalyst for the selective oxidation of structurally diverse sulfides to sulfoxides using 33 % H2O2 in ethanol as solvent at 60 °C (Scheme 2).…”

Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4

“…Some derivatives exhibit biological activities, such as anticoagulant, insecticidal, antihelminthic, hypnotic, and antifungal activities, phytoalexin production, and HIV protease inhibition [2][3][4]. Moreover, these compounds are gaining increasing interest because of their versatile …”

Crystal structure of 4-(3,4-dimethyl-phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C21H25NO3

“…4-Arylpolyhydroquinoline derivatives are one of the most commonly encountered of pharmacophores for a number of compounds having medicinal signi cance including anticancer, antiviral, antibacterial, antioxidant, anti-HIV, antihyperglycemic and anti-dyslipidemic activities [1,2]. Recognizing the considerable importance of these compounds, research focused on the synthesis of new 4-arylpolyhydroquinoline derivatives [3,4].…”