Application of SBA-Pr-SO3H in the synthesis of 2,3-dihydroquinazoline-4(1H)-ones: characterization, UV–Vis investigations and DFT studies

Preparation and characterization of nano MnO-CaLs as a green catalyst for oxidation of styrene

“…Diffuse reflectance UV-vis spectra of samples were obtained in the range of 200–400 nm by Lambda 35 UV-VIS Spectrometer (PerkinElmer). Afsar et al [ 12 ] utilized UV spectroscopy in a catalytic process, which is an accepted method among researchers. To confirm the attachment of CaLs on MnO and replaced with oleic acid, the diffuse reflectance UV-Vis spectra is performed, and the results are shown in Figure 5 .…”

“…Due to the importance of catalytic oxidation production of styrene-epoxide from styrene in the biological environment and in the industrial reactions, the consideration of high-efficiency and short-term efficient methods has been taken into consideration by chemists. On the other hand, transition metal oxides show good catalytic activity and selectivity and, therefore, are widely applied as heterogeneous catalysts in various chemical reactions due to their benefits over homogeneous catalysts [ 11 ] such as providing easy separation, biocompatibility selectivity, and recyclability [ 12 , 13 , 14 ]. Since energy consumption has become one of the major concerns of the world today, efforts should be made to reduce energy consumption in chemical processes [ 15 ].…”

Cu-metal organic frameworks (Cu-MOF) as an environment-friendly and economical catalyst for one pot synthesis of tacrine derivatives

“…The requirement for the rapid and selective structure of biologically active materials for drug discovery has led to the widespread development of heterogenous catalysis, which allows the researcher to reduce the steps of the reactions. [14][15][16][17] Heterogeneous catalysts have also many other advantages such as easily isolation from the mixture of the reaction, be recyclable and less contamination in nal product. 18 Metal organic frameworks (MOFs) attracted the attention of the scientic community around 1990 (ref.…”

The use of SrFe12O19 magnetic nanoparticles as an efficient catalyst in the modified Niementowski reaction

“…According to the importance of quinazoline and quinazolinone compounds in medicinal chemistry, Niementowski reaction conditions were developed and modified to gain a diverse library of such compounds . According to our previous research in the field of catalysis, and also due to the importance of nanomagnetic catalysts in organic syntheses, herein, we want to introduce the first application of prepared SrFe 12 O 19 MNPs as catalyst in the modified Niementowski reaction.…”