Indisputable roles of different ionic liquids, deep eutectic solvents and nanomaterials in green chemistry for sustainable organic synthesis

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 399, P. 124469 - 124469

Published: March 13, 2024

Language: Английский

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State of the art of the fundamental aspects in the concept of microwave-assisted heating systems

International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 156, P. 107594 - 107594

Published: May 23, 2024

As the processing of materials using clean energy becomes increasingly important, indirect conventional heating is being replaced by microwave-assisted heating. This method transforms directly into heat, providing rapid with instantaneous start-up, improved control and homogeneity temperature distribution, enabling a compact design. Therefore, impact microwaves in industry growing recent years. The complexity incorporating any industrial process resides need for customised emphasised case continuous flow microwave systems where electromagnetic distribution its transformation as well dynamics fluid to be heated under different operating conditions, are solved. For this purpose, apart from dielectric magnetic properties material heated, which define how it behaves relation electric fields when exposed microwaves, there several factors influencing design process: generator transmission line, geometry applicator field distributed, container sample or measurement techniques process. Additionally, numerical simulation an essential tool designing predicting suitability system. composite processing, application tools arises achieve advanced more efficiently. In paper, these fundamental aspects system reviewed, presenting examples various applications technology integrated.

Language: Английский

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Recent advances in the synthesis of anticancer pyrazole derivatives using microwave, ultrasound, and mechanochemical techniques

RSC Advances, Journal Year: 2025, Volume and Issue: 15(9), P. 7018 - 7038

Published: Jan. 1, 2025

Pyrazole and its derivatives have attracted considerable attention in pharmaceutical medicinal chemistry, as reflected their presence numerous FDA-approved drugs clinical candidates. This review presents a comprehensive analysis of articles published between 2014 2024, focusing on the microwave-, ultrasound-, mechanochemical-assisted synthesis pyrazole with anticancer activity. It explores synthetic methodologies, efficacy, molecular docking studies, underscoring significance drug discovery chemistry. Notably, microwave irradiation stands out most widely employed technique, providing high efficiency by significantly reducing reaction times while maintaining moderate temperatures. Ultrasound serves valuable alternative, particularly for processes that require milder conditions, whereas mechanochemical activation, though less frequently employed, offers distinct advantages terms sustainability.

Language: Английский

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Microwave-Assisted Synthesis: Can Transition Metal Complexes Take Advantage of This “Green” Method?

Molecules, Journal Year: 2022, Volume and Issue: 27(13), P. 4249 - 4249

Published: June 30, 2022

Microwave-assisted synthesis is considered environmental-friendly and, therefore, in agreement with the principles of green chemistry. This form energy has been employed extensively and successfully organic also case metal-catalyzed synthetic procedures. However, it less widely exploited metal complexes. As microwave irradiation proving its utility as both a time-saving procedure an alternative way to carry on tricky transformations, use can help inorganic chemists, too. review focuses preparation transition complexes organometallic compounds includes new, unpublished results. The syntheses are described following group periodic table which contained belongs. A general overview results from over 150 papers points out that microwaves be useful tool for reducing dramatically reaction times respect traditional heating. often accompanied by more limited risk decomposition reagents or products increase yield, purity, (sometimes) selectivity. In any case, thermal control operative, whereas nonthermal specific effects seem absent.

Language: Английский

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A Concise Review of Multicomponent Reactions Using Novel Heterogeneous Catalysts under Microwave Irradiation

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1034 - 1034

Published: June 24, 2023

Multi-component reactions for the construction of heterocycles have been fascinated by microwave energy as an alternative technique heating, owing to advantages over traditional reflux methods. The heterogeneous catalysts contribute significantly towards recycling, harmless, easy filtration, catalyst preparation, more life span, abundance, and product yields. With novel creative uses in organic peptide synthesis, polymer chemistry, material sciences, nanotechnology, biological processes, usage has rapidly increased during past 20 years. This article covers multicomponent involving chromenes, pyridines, pyrroles, triazoles, pyrazoles, tetrazoles, trans cis julolidines using under microwave. It provides overview contemporary microwave-assisted catalytic reactions. Microwave chemistry is now established technology with several regarding reaction rate production yield, improving savings confirmed many applications. Due widespread curiosity medicinal heterogeneously catalysed irradiation explored reduce time energy. By considering various aspects economy, eco-friendly, user-friendly factors, this review focuses on recent advances multi-component irradiation. also discusses benefits limitations conditions yields from literature reports five

Language: Английский

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What’s new in flow biocatalysis? A snapshot of 2020–2022

Frontiers in Catalysis, Journal Year: 2023, Volume and Issue: 3

Published: April 21, 2023

Flow biocatalysis is a key enabling technology that increasingly being applied to wide array of reactions with the aim achieving process intensification, better control biotransformations, and minimization waste stream. In this mini-review, selected applications flow preparation food ingredients, APIs fat- oil-derived commodity chemicals, covering period 2020-2022, are described.

Language: Английский

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Sustainable click reactions: Use of greener reaction media in the synthesis of 1,2,3-triazoles

Tetrahedron, Journal Year: 2024, Volume and Issue: 157, P. 133964 - 133964

Published: March 31, 2024

Language: Английский

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Green mussel shell-derived hydroxyapatite-CoFe2O4 catalyst: Microwave-assisted synthesis of 2-amino-4H-chromene derivative

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 10, P. 100851 - 100851

Published: July 11, 2024

The utilization of catalysts in organic reactions represents a widely utilized principle within the concept green chemistry. This study focuses on utilizing hydroxyapatite from mussel shell waste combined with CoFe2O4 as heterogeneous catalyst for synthesizing 2-amino-4H-chromene derivative. shells were calcined to produce CaO, which was then precursor synthesis hydroxyapatite, and cobalt ferrite through coprecipitation method. Diffractogram analysis confirmed successful formation CoFe2O4, their composite, validated against JCPDS data. Morphological revealed irregular shapes, while magnetic property indicated slight decrease hydroxyapatite-CoFe2O4 composite compared pristine CoFe2O4. Catalytic activity assessment demonstrated high yields (up 88 %) under optimized conditions: concentration 7.5 % w/w, reaction time 15 minutes, ethanol solvent, using 300 Watts microwave power. reusability catalyst, supported by XRD FTIR analyses, demonstrates its structural chemical stability after five catalytic cycles, showcasing potential an eco-friendly efficient catalyst.

Language: Английский

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Microflow chemistry and its electrification for sustainable chemical manufacturing

Chemical Science, Journal Year: 2022, Volume and Issue: 13(36), P. 10644 - 10685

Published: Jan. 1, 2022

This review presents the recent advancements in utilizing microflow systems combined with plasma and microwave heating for sustainable manufacturing. The technology holds promise increasing process efficiency while minimizing carbon footprint.

Language: Английский

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The Chemistry of Aldehydes and Ketones in the Synthesis of Heterocycles - Historical Reactions with a New and Green Perspective

Current Organic Chemistry, Journal Year: 2024, Volume and Issue: 28(13), P. 1023 - 1045

Published: March 19, 2024

Abstract: The reactivity of aldehydes and ketones carries great potential for multicomponent heterocyclizations. These reactions are convergent highly versatile in the development synthetic methodologies compound families, displaying variations substituents their structures. Therefore, they have been regarded as an important tool field Green Chemistry. Furthermore, prove to be very useful studies biological activity, where small structural modifications can result significant differences. Many heterocyclizations date back mid-19th early 20th centuries. In this review, we aim demonstrate, through some these reactions, continuously growing improvements concerning development. Additionally, present original reported, enabling us appreciate evolution chemical representations over years until reaching standardization today.

Language: Английский

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