Efficientone-pot synthesis of imidazoles catalyzed by silica-supported La0.5Pb0.5MnO3 nano particles as anovel and reusable perovskite oxide

Zahedi, Nooshin; Ali, Javid; Mohammadi, Mohammad Kazem; Tavakkoli, Haman

doi:10.4314/bcse.v32i1.15

Cited by 9 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…76 In particular, alternative approaches have been widely investigated to facilitate the removal and reuse of heterogeneous catalysts as well as the purification of the product. Some tested heterogeneous catalysts include magnetic nanoparticles, 77 heterogeneous silica-supported La 0.5 Pb 0.5 MnO 3 nanoparticles, 78 solid acids based on mercaptopropyl silica, 79 sulfamic acid (NH 2 SO 3 H), 80 ionic liquid-like phase catalyst based on Merrifield resin, 81 nanocatalysts, and SBAPr-SO 3 H incorporating propyl sulfonic acid groups. 82 Although progress has been made in the synthesis of phenanthro[9,10-d]imidazoles, the general approach of the condensation of phenanthrene-9,10-dione (13) with an aldehyde in the presence of ammonium acetate in acetic acid has been applied to prepare a set of fluorescent sensors for ionic and molecular recognition.…”

Section: ■ Synthesis Of Phenanthro[910-d]imidazolesmentioning

confidence: 99%

Aryl-Phenanthro[9,10-d]imidazole: A Versatile Scaffold for the Design of Optical-Based Sensors

et al. 2022

View full text Add to dashboard Cite

Fluorescent and colorimetric sensors are important tools for investigating the chemical compositions of different matrices, including foods, environmental samples, and water. The high sensitivity, low interference, and low detection limits of these sensors have inspired scientists to investigate this class of sensing molecules for ion and molecule detection. Several examples of fluorescent and colorimetric sensors have been described in the literature; this Review focuses particularly on phenanthro [9,10d]imidazoles. Different strategies have been developed for obtaining phenanthro [9,10d]imidazoles, which enable modification of their optical properties upon interaction with specific analytes. These sensing responses usually involve changes in the fluorescence intensity and/or color arising from processes like photoinduced electron transfer, intramolecular charge transfer, intramolecular proton transfer in the excited state, and Forster resonance energy transfer. In this Review, we categorized these sensors into two different groups: those bearing formyl groups and their derivatives and those based on other molecular groups. The different optical responses of phenanthro [9,10-d]imidazole-based sensors upon interaction with specific analytes are discussed.

show abstract

Section: ■ Synthesis Of Phenanthro[910-d]imidazolesmentioning

confidence: 99%

Aryl-Phenanthro[9,10-d]imidazole: A Versatile Scaffold for the Design of Optical-Based Sensors

et al. 2022

View full text Add to dashboard Cite

show abstract

“…One year later, the same research group reported using heterogeneous silica-supported La 0.5 Pb 0.5 MnO 3 nanoparticles, prepared and used as a new Perovskite-type catalyst for the synthesis of imidazole derivatives (Scheme 15b). [50] Reactions were carried out under ethanol reflux, and the phenanthro [9,10-d]imidazole 73 was successfully obtained at 94 % yield. In neat conditions (absence of solvent), the product was obtained at 80 % yield.…”

Section: Phenanthro[910-d]imidazole and Phenanthro[910-d] Oxazolementioning

confidence: 99%

Imidazoles and Oxazoles from Lapachones and Phenanthrene‐9,10‐dione: A Journey through their Synthesis, Biological Studies, and Optical Applications

Dias

Paz

Nunes

et al. 2021

The Chemical Record

View full text Add to dashboard Cite

Diverse structural frameworks are found in natural compounds and are well known for their chemical and biological properties; such compounds include the imidazoles and oxazoles. Researchers worldwide are continually working on the development of methods for synthesizing new molecules bearing these basic moiety and evaluating their properties and applications. To expand the knowledge related to azoles, this review summarizes important examples of imidazole and oxazole derivatives from 1,2-dicarbonyl compounds, such as lapachones and phenanthrene-9,10-diones, not only regarding their synthesis and biological applications but also their photophysical properties and uses. The data concerning the latter are particularly scarce in the literature, which leads to underestimation of the potential applications that can be envisaged for these compounds.

show abstract

“…In the market, there are many drugs such as thiazole, thiophene, and pyridine derivatives. For such excessive benefits, these compounds were used in many efficient synthetic transformations and are used as intermediates in many chemical reactions . It has been reported that many thiazole, thiophene, and pyrazole derivatives showed potent analgesic, anticonvulsant, anti‐inflammatory and antibacterial, antipyretics, antitumor, antiparasitic, antimicrobial, antihistaminic, antianexiety test in mice, antiarrhythmic, and serotonin antagonist .…”

Section: Introductionmentioning

confidence: 99%

Uses of ethyl benzoylacetate for the synthesis of thiophene, thiazole, pyridine, and pyran derivatives with antitumor activities

Mohareb

Mostafa

2020

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

The reaction of ethyl benzoylacetate with malononitrile in an oil bath at 120°C gave the condensation product 3. The latter compound underwent a series of heterocyclization to give thiophene, thiazole, pyridine, and pyran derivatives. The structures of the synthesized products were established on the basis of analytical and spectral data. The antitumor evaluation of the newly synthesized products against the six cancer cell lines namely human gastric cancer (NUGC and HR), human colon cancer (DLD1), human liver cancer (HA22T and HEPG2), human breast cancer (MCF), nasopharyngeal carcinoma (HONE1), and normal fibroblast cells (WI38) indicated that many compounds expressed high inhibition against the six cancer cell lines. Compounds 3, 8a, 8c, 14b, 16b, 16c, 16d, 19a, 19b, 20a, 22a, 27b, and 28a were the most cytotoxic compounds among the tested compounds.

show abstract

Efficientone-pot synthesis of imidazoles catalyzed by silica-supported La0.5Pb0.5MnO3 nano particles as anovel and reusable perovskite oxide

Cited by 9 publications

References 28 publications

Aryl-Phenanthro[9,10-d]imidazole: A Versatile Scaffold for the Design of Optical-Based Sensors

Aryl-Phenanthro[9,10-d]imidazole: A Versatile Scaffold for the Design of Optical-Based Sensors

Imidazoles and Oxazoles from Lapachones and Phenanthrene‐9,10‐dione: A Journey through their Synthesis, Biological Studies, and Optical Applications

Uses of ethyl benzoylacetate for the synthesis of thiophene, thiazole, pyridine, and pyran derivatives with antitumor activities

Contact Info

Product

Resources

About