Nanocatalyzed synthetic approach for quinazoline and quinazolinone derivatives: A review (2015–present)

Synthetic Communications, Год журнала: 2022, Номер 52(6), С. 795 - 826

Опубликована: Фев. 22, 2022

Quinazolines and their derivative are among the most significant heterocyclic compounds due to several chemical reactivities vital range of biological activity. Although a tremendous number research papers dedicated synthesizing quinazolines derivatives using reaction conditions like expensive catalysts, multistep reactions, high temperature, use base toxic solvents. But moving toward greener approach, nanocatalysts have emerged as potential candidates owing surface area more exposed active sites for reactants which enhances selectivity reduces quantity catalyst requirement. The synthesis quinazoline is mainly limited primary screening eco-friendly nanocatalysts. This review provides importance its enlists various (2015–present) involved in with emphasis on synthetic strategies catalytic performances. will provide an idea rational designing eco-friendly, novel efficient

Язык: Английский

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Aqueous phase conversion of CO2 into acetic acid over thermally transformed MIL-88B catalyst

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Май 17, 2023

Sustainable production of acetic acid is a high priority due to its global manufacturing capacity and numerous applications. Currently, it predominantly synthesized via carbonylation methanol, in which both the reactants are fossil-derived. Carbon dioxide transformation into highly desirable achieve net zero carbon emissions, but significant challenges remain this efficiently. Herein, we report heterogeneous catalyst, thermally transformed MIL-88B with Fe0 Fe3O4 dual active sites, for selective formation methanol hydrocarboxylation. ReaxFF molecular simulation, X-ray characterisation results show catalyst consisting dispersed Fe0/Fe(II)-oxide nanoparticles carbonaceous matrix. This efficient showed yield (590.1 mmol/gcat.L) 81.7% selectivity at 150 °C aqueous phase using LiI as co-catalyst. Here present plausible reaction pathway formic intermediate. No difference were noticed during recycling study up five cycles. work scalable industrially relevant utilisation reduce especially when green hydrogen readily available future.

Язык: Английский

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A single-atom Fe-N-C catalyst with superior Fenton-like reaction performance prepared facilely using microalgae: Key roles of oxygen and interactions between Fe-Nx and Fe/Fe compounds

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 339, С. 123135 - 123135

Опубликована: Июль 29, 2023

Язык: Английский

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Structural Regulation of Two Polyoxometalate-Based Metal–Organic Frameworks for the Heterogeneous Catalysis of Quinazolinones

Inorganic Chemistry, Год журнала: 2023, Номер 62(14), С. 5565 - 5575

Опубликована: Март 29, 2023

Two dimeric {ε-Zn4PMo12}-based metal-organic frameworks (MOFs), [ε-PMo8VMo4VIO34(OH)6Zn4][LO] (SDUT-21, LO = [5-((4'-carboxybenzyl)oxy)isophthalic acid]) and [TBA]3[ε-PMo8VMo4VIO37(OH)3Zn4][LN] (SDUT-22, TBA+ tetrabutylammonium ion, LN [5-((4-carboxybenzyl)imino)isophthalic acid]), combining the advantages of polyoxometalates (POMs) MOFs, were synthesized by one-pot assembly strategy. The {ε-Zn4PMo12} units act as nodes that are linked flexible ligands extended into two- or three-dimensional frameworks. cyclic voltammetry proton conductivity measurements SDUT-21 SDUT-22 performed indicated high electron transfer abilities. These materials also e xhibited catalytic performance for synthesis quinazolinones in heterogeneous state, different binding capacities toward substrates caused activity to be higher than under same conditions. In addition, used catalysts could readily recovered five successive cycles maintained efficiency.

Язык: Английский

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Fe Single Atoms Encased in Nanoscale Zif-8 Dodecahedra for Oxygen Reduction and Flexible Zinc–Air Batteries

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(11), С. 13547 - 13556

Опубликована: Май 22, 2024

The development of efficient and facile nonprecious metal catalysts for the oxygen reduction reaction (ORR) holds great significance. Among these, single-atomic metal–nitrogen–carbon (M–N–C) are emerging candidates due to their high activity prolonged lifespan. However, traditional preparation M–N–C suffers from thermal aggregation low space–time yield, limiting application in industry. Inspired by "chainmail protection" carbonaceous materials, here we propose an "armor strategy large-scale synthesis a highly active Fe single-atom ORR catalyst (Fe-8/8-CN) pyrolyzing well-designed precursor Fe-ZIF-8/ZIF-8. In this precursor, 2-methylimidazole zinc MOF (ZIF-8) loaded with iron (Fe-ZIF-8) is encased additional ZIF-8 armor layer (Fe-ZIF-8/ZIF-8) that effectively shields species within inner during pyrolysis process, ultimately yielding (Fe-8/8-CN). Furthermore, approaches construction Fe-ZIF-8/ZIF-8 make it efficiently scale up yield 18.7 kg m–3 day–1. particular, protection preparing universally applicable leaf-shaped ZIF-L other ZIFs diverse morphologies. Thanks presence outer core dispersing catalytic sites porous defect-rich characteristics volatilization Zn ZIF-8, resulting Fe-8/8-CN demonstrates superior performance alkaline electrolyte (E1/2 = 0.93 V, JL −5.89 mA cm–2). Finally, Fe-8/8-CN, as cathode material flexible zinc–air batteries, exhibits peak power density (97 mW cm–2) excellent durability Pt/C.

Язык: Английский

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