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Статті в журналах з теми "Greener synthesis"

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Автор: Grafiati

Опубліковано: 18 травня 2024

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1

Mooney, Madison, Audithya Nyayachavadi, and Simon Rondeau-Gagné. "Eco-friendly semiconducting polymers: from greener synthesis to greener processability." Journal of Materials Chemistry C 8, no. 42 (2020): 14645–64. http://dx.doi.org/10.1039/d0tc04085a.

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2

Kharissova, Oxana V., H. V. Rasika Dias, Boris I. Kharisov, Betsabee Olvera Pérez, and Victor M. Jiménez Pérez. "The greener synthesis of nanoparticles." Trends in Biotechnology 31, no. 4 (April 2013): 240–48. http://dx.doi.org/10.1016/j.tibtech.2013.01.003.

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3

Lawrenson, Stefan, Michael North, Fanny Peigneguy, and Anne Routledge. "Greener solvents for solid-phase synthesis." Green Chemistry 19, no. 4 (2017): 952–62. http://dx.doi.org/10.1039/c6gc03147a.

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4

Polshettiwar, Vivek, and Rajender S. Varma. "Greener and expeditious synthesis of bioactive heterocycles using microwave irradiation." Pure and Applied Chemistry 80, no. 4 (January 1, 2008): 777–90. http://dx.doi.org/10.1351/pac200880040777.

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Анотація:

The utilization of green chemistry techniques is dramatically reducing chemical waste and reaction times as has recently been proven in several organic syntheses and chemical transformations. To illustrate these advantages in the synthesis of bioactive heterocycles, we have studied various environmentally benign protocols that involve greener alternatives. Microwave (MW) irradiation of neat reactants catalyzed by the surfaces of recyclable mineral supports, such as alumina, silica, clay, or their "doped" versions, enables the rapid one-pot assembly of heterocyclic compounds, such as flavonoids, related benzopyrans, and quinolone derivatives. The strategy to assemble oxygen and nitrogen heterocycles from in situ generated reactive intermediates via enamines or using hypervalent iodine reagents is described. Examples of multicomponent reactions that can be adapted for rapid parallel synthesis include solventless synthesis of dihydropyrimidine-2(1H)-ones (Biginelli reaction), imidazo[1,2-a]annulated pyridines, pyrazines, and pyrimidines (Ugi reaction). The relative advantages of greener pathways, which use MW irradiation and eco-friendly aqueous reaction medium, for the synthesis of various heterocycles, such as N-aryl azacycloalkanes, isoindoles, 1,3-dioxane, 1,3,4-oxadiazole, 1,3,4-thiadiazole, pyrazole, and diazepines, are also summarized.

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5

Jicsinszky, László, and Giancarlo Cravotto. "Toward a Greener World—Cyclodextrin Derivatization by Mechanochemistry." Molecules 26, no. 17 (August 27, 2021): 5193. http://dx.doi.org/10.3390/molecules26175193.

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Анотація:

Cyclodextrin (CD) derivatives are a challenge, mainly due to solubility problems. In many cases, the synthesis of CD derivatives requires high-boiling solvents, whereas the product isolation from the aqueous methods often requires energy-intensive processes. Complex formation faces similar challenges in that it involves interacting materials with conflicting properties. However, many authors also refer to the formation of non-covalent bonds, such as the formation of inclusion complexes or metal–organic networks, as reactions or synthesis, which makes it difficult to classify the technical papers. In many cases, the solubility of both the starting material and the product in the same solvent differs significantly. The sweetest point of mechanochemistry is the reduced demand or complete elimination of solvents from the synthesis. The lack of solvents can make syntheses more economical and greener. The limited molecular movements in solid-state allow the preparation of CD derivatives, which are difficult to produce under solvent reaction conditions. A mechanochemical reaction generally has a higher reagent utilization rate. When the reaction yields a good guest co-product, solvent-free conditions can be slower than in solution conditions. Regioselective syntheses of per-6-amino and alkylthio-CD derivatives or insoluble cyclodextrin polymers and nanosponges are good examples of what a greener technology can offer through solvent-free reaction conditions. In the case of thiolated CD derivatives, the absence of solvents results in significant suppression of the thiol group oxidation, too. The insoluble polymer synthesis is also more efficient when using the same molar ratio of the reagents as the solution reaction. Solid reactants not only reduce the chance of hydrolysis of multifunctional reactants or side reactions, but the spatial proximity of macrocycles also reduces the length of the spacing formed by the crosslinker. The structure of insoluble polymers of the mechanochemical reactions generally is more compact, with fewer and shorter hydrophilic arms than the products of the solution reactions.

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6

Lawrenson, Stefan B. "Greener solvents for solid-phase organic synthesis." Pure and Applied Chemistry 90, no. 1 (January 26, 2018): 157–65. http://dx.doi.org/10.1515/pac-2017-0505.

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AbstractSolid-phase organic synthesis is an essential method for the rapid synthesis of complex biological structures and libraries of small organic molecules. However, it is often associated with the use of large quantities of problematic solvents for the removal of excess reagents and reaction by-products. Given that solvent will often be the biggest contributor to waste generated in the average pharmaceutical/fine-chemical process, its exchange for a more desirable alternative often presents the biggest gains in terms of reducing environmental impact. This review aims to explore recent approaches to performing solid-phase organic synthesis, and associated solid-phase peptide synthesis, in neoteric solvents and reaction media that present greener alternatives.

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7

Bhardwaj, Brahamdutt, Pritam Singh, Arun Kumar, Sandeep Kumar, and Vikas Budhwar. "Eco-Friendly Greener Synthesis of Nanoparticles." Advanced Pharmaceutical Bulletin 10, no. 4 (August 9, 2020): 566–76. http://dx.doi.org/10.34172/apb.2020.067.

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Анотація:

The exploitation of naturally obtained resources like biopolymers, plant-based extracts, microorganisms etc., offers numerous advantages of environment-friendliness and biocompatibility for various medicinal and pharmaceutical applications, whereas hazardous chemicals are not utilized for production protocol. Plant extracts based synthetic procedures have drawn consideration over conventional methods like physical and chemical procedures to synthesize nanomaterials. Greener synthesis of nanomaterials has become an area of interest because of numerous advantages such as non-hazardous, economical, and feasible methods with variety of applications in biomedicine, nanotechnology and nano-optoelectronics, etc.

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8

Kharissova, Oxana V., Boris I. Kharisov, César Máximo Oliva González, Yolanda Peña Méndez, and Israel López. "Greener synthesis of chemical compounds and materials." Royal Society Open Science 6, no. 11 (November 2019): 191378. http://dx.doi.org/10.1098/rsos.191378.

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Анотація:

Modern trends in the greener synthesis and fabrication of inorganic, organic and coordination compounds, materials, nanomaterials, hybrids and nanocomposites are discussed. Green chemistry deals with synthesis procedures according to its classic 12 principles, contributing to the sustainability of chemical processes, energy savings, lesser toxicity of reagents and final products, lesser damage to the environment and human health, decreasing the risk of global overheating, and more rational use of natural resources and agricultural wastes. Greener techniques have been applied to synthesize both well-known chemical compounds by more sustainable routes and completely new materials. A range of nanosized materials and composites can be produced by greener routes, including nanoparticles of metals, non-metals, their oxides and salts, aerogels or quantum dots. At the same time, such classic materials as cement, ceramics, adsorbents, polymers, bioplastics and biocomposites can be improved or obtained by cleaner processes. Several non-contaminating physical methods, such as microwave heating, ultrasound-assisted and hydrothermal processes or ball milling, frequently in combination with the use of natural precursors, are of major importance in the greener synthesis, as well as solventless and biosynthesis techniques. Non-hazardous solvents including ionic liquids, use of plant extracts, fungi, yeasts, bacteria and viruses are also discussed in relation with materials fabrication. Availability, necessity and profitability of scaling up green processes are discussed.

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9

Gangurde, S. A., K. S. Laddha, and S. V. Joshi. "A GREENER APPROACH TO SYNTHESIS OF DIACEREIN." INDIAN DRUGS 56, no. 04 (April 28, 2019): 7–12. http://dx.doi.org/10.53879/id.56.04.11784.

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Diacerein, also known as diacetylrhein (1,8-diacetoxy-3-carboxyanthraquinone), is a slow-acting active pharmaceutical ingredient of the anthraquinone class used to treat joint diseases such as osteoarthritis (swelling and pain in the joints). It works by inhibiting interleukin-1 beta and demonstrates anti-arthritic activity without inhibiting prostaglandin synthesis. Diacerein-containing medications are registered in some European Union and Asian countries and are included as a treatment option on several international therapeutic guidelines. Different approaches have been reported for the synthesis of this compound. Many approaches have been reported for preparation of diacerein specially employing reagents like hexavalent chromium compounds which are toxic and effluent-unfriendly. We report herein synthesis of diacerein, a potent antiarthritic ingredient, by employing a greener chemical method and also synthesis of acetyl vanillic acid by employing similar scheme having same functional groups.

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10

Iravani, Siavash, and Rajender S. Varma. "Greener synthesis of lignin nanoparticles and their applications." Green Chemistry 22, no. 3 (2020): 612–36. http://dx.doi.org/10.1039/c9gc02835h.

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11

Amrillah, Tahta, Che Azurahanim Che Abdullah, Angga Hermawan, Fitri Nur Indah Sari, and Vani Novita Alvani. "Towards Greener and More Sustainable Synthesis of MXenes: A Review." Nanomaterials 12, no. 23 (December 1, 2022): 4280. http://dx.doi.org/10.3390/nano12234280.

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The unique properties of MXenes have been deemed to be of significant interest in various emerging applications. However, MXenes provide a major drawback involving environmentally harmful and toxic substances for its general fabrication in large-scale production and employing a high-temperature solid-state reaction followed by selective etching. Meanwhile, how MXenes are synthesized is essential in directing their end uses. Therefore, making strategic approaches to synthesize greener, safer, more sustainable, and more environmentally friendly MXenes is imperative to commercialize at a competitive price. With increasing reports of green synthesis that promote advanced technologies and non-toxic agents, it is critical to compile, summarize, and synthesize the latest development of the green-related technology of MXenes. We review the recent progress of greener, safer, and more sustainable MXene synthesis with a focus on the fundamental synthetic process, the mechanism, and the general advantages, and the emphasis on the MXene properties inherited from such green synthesis techniques. The emerging use of the so-called green MXenes in energy conversion and storage, environmental remediation, and biomedical applications is presented. Finally, the remaining challenges and prospects of greener MXene synthesis are discussed.

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12

Martin, Vincent, Peter H. G. Egelund, Henrik Johansson, Sebastian Thordal Le Quement, Felix Wojcik, and Daniel Sejer Pedersen. "Greening the synthesis of peptide therapeutics: an industrial perspective." RSC Advances 10, no. 69 (2020): 42457–92. http://dx.doi.org/10.1039/d0ra07204d.

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13

Ingle, Vilas, Amarsinha Gorepatil, Pratapsinha Gorepatil, Mahadev Gaikwad, and Akshay Ghumare. "PYRROLIDINE: AN EFFICIENT CATALYST FOR THE SYNTHESIS OF 2-ARYL-2, 3- DIHYDROQUINOLIN-4(1H)-ONE DERIVATIVES IN AQUEOUS ETHANOL MEDIA." Journal of Advanced Scientific Research 13, no. 04 (April 30, 2022): 41–44. http://dx.doi.org/10.55218/jasr.202213407.

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A facile, greener and direct synthetic method has been introduced for synthesis of 2-aryl-2,3-dihydroquinoli-4(1H)-ones from 2-aminoacetophenone and substituted benzaldehydes using pyrrolidine as an organobase catalyst under mild reaction condition. The merits of this method are short reaction time, operational simplicity, high yield and greener solvent media.

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14

Nasrollahzadeh, Mahmoud, Mohaddeseh Sajjadi, Siavash Iravani, and Rajender S. Varma. "Trimetallic Nanoparticles: Greener Synthesis and Their Applications." Nanomaterials 10, no. 9 (September 9, 2020): 1784. http://dx.doi.org/10.3390/nano10091784.

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Анотація:

Nanoparticles (NPs) and multifunctional nano-sized materials have significant applications in diverse fields, namely catalysis, sensors, optics, solar energy conversion, cancer therapy/diagnosis, and bioimaging. Trimetallic NPs have found unique catalytic, active food packaging, biomedical, antimicrobial, and sensing applications; they preserve an ever-superior level of catalytic activities and selectivity compared to monometallic and bimetallic nanomaterials. Due to these important applications, a variety of preparation routes, including hydrothermal, microemulsion, selective catalytic reduction, co-precipitation, and microwave-assisted methodologies have been reported for the syntheses of these nanomaterials. As the fabrication of nanomaterials using physicochemical methods often have hazardous and toxic impacts on the environment, there is a vital need to design innovative and well-organized eco-friendly, sustainable, and greener synthetic protocols for their assembly, by applying safer, renewable, and inexpensive materials. In this review, noteworthy recent advancements relating to the applications of trimetallic NPs and nanocomposites comprising these NPs are underscored as well as their eco-friendly and sustainable synthetic preparative options.

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15

Kovács, Rita, Alajos Grün, Sándor Garadnay, István Greiner, and György Keglevich. "“Greener” synthesis of bisphosphonic/dronic acid derivatives." Green Processing and Synthesis 3, no. 2 (April 1, 2014): 111–16. http://dx.doi.org/10.1515/gps-2013-0107.

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Abstract According to literature, the synthesis of dronic acid derivatives from the corresponding carboxylic acids using phosphorus trichloride and phosphorous acid as the P-reactants is controversial, due to the wide range of molar ratios and diverse conditions. In this minireview, we summarize our results on the clarification of these problems. For example, with zoledronic acid and risedronic acid, we found that, using methanesulfonic acid (MSA) as the solvent, 3.2 equivalents of phosphorus trichloride was enough. Generalizing this optimized method, etidronate, fenidronate, ibandronate and alendronate were obtained in yields of 38%–57%, which is reasonable for valuable dronates, and in most cases, with high purities. Mechanistic aspects are also discussed.

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16

Kumari, N., D. Varandani, and B. R. Mehta. "Greener Synthesis of CZTS: Structural, KPFM studies." Materials Today: Proceedings 5, no. 11 (2018): 23281–85. http://dx.doi.org/10.1016/j.matpr.2018.11.061.

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17

Cheng, Shuiming, Shengdong Zhu, Yuanxin Wu, Rui Chen, Ziniu Yu, and Xinya Zhang. "A GREENER SYNTHESIS TECHNOLOGY FOR LOMEFLOXACIN HYDROCHLORIDE." Chemical Engineering Communications 196, no. 8 (March 24, 2009): 901–5. http://dx.doi.org/10.1080/00986440902743794.

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18

Ribeiro, M. Gabriela T. C., and Adélio A. S. C. Machado. "Metal−Acetylacetonate Synthesis Experiments: Which Is Greener?" Journal of Chemical Education 88, no. 7 (July 2011): 947–53. http://dx.doi.org/10.1021/ed100174f.

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19

Avalos, Martín, Reyes Babiano, Pedro Cintas, José L. Jiménez, and Juan C. Palacios. "Greener Media in Chemical Synthesis and Processing." Angewandte Chemie International Edition 45, no. 24 (June 12, 2006): 3904–8. http://dx.doi.org/10.1002/anie.200504285.

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20

Satheesh, A., H. Usha, D. S. Priya, A. V. L. N. H. Hariharan, and M. V. V. Ramanjaneyulu. "Greener Protocol for the Synthesis of Carbamates." Journal of Scientific Research 15, no. 2 (May 1, 2023): 481–88. http://dx.doi.org/10.3329/jsr.v15i2.60649.

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Анотація:

An efficient and environmentally friendly protocol has been developed for synthesizing carbamates. Carbamate derivatives are frequently used as pesticides (insecticides, fungicides, and herbicides), as starting materials in producing paints and polyurethanes, and as protecting groups of amines in organic synthesis. It is a simple and solvent-free methodology to prepare primary carbamates in high yield and purity from compounds sodium cyanate, Phenol/alcohol, and TCA (Trichloro acetic acid). We reported the application of TCA as a mild, convenient and effective reagent for this transformation.

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21

Ghosh, Suman Kr, and Rajagopal Nagarajan. "Deep eutectic solvent mediated synthesis of quinazolinones and dihydroquinazolinones: synthesis of natural products and drugs." RSC Advances 6, no. 33 (2016): 27378–87. http://dx.doi.org/10.1039/c6ra00855k.

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Анотація:

A mild and greener protocol was developed to synthesize substituted quinazolinones and dihydroquinazolinones via deep eutectic solvent mediated cyclization with aliphatic, aromatic, and heteroaromatic aldehydes in good to excellent yields.

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22

Lane, Mary Kate Mitchell, and Julie B. Zimmerman. "Controlling metal oxide nanoparticle size and shape with supercritical fluid synthesis." Green Chemistry 21, no. 14 (2019): 3769–81. http://dx.doi.org/10.1039/c9gc01619h.

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Supercritical fluid nanoparticle synthesis (SCF nano synthesis) can robustly and readily control size and shape of metal oxide nanoparticles, while offering a potentially greener synthetic route through the employment of green solvents.

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23

Santoro, Stefano, Juliano B. Azeredo, Vanessa Nascimento, Luca Sancineto, Antonio L. Braga, and Claudio Santi. "“The green side of the moon: ecofriendly aspects of organoselenium chemistry”." RSC Adv. 4, no. 60 (2014): 31521–35. http://dx.doi.org/10.1039/c4ra04493b.

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24

Ferrazzano, Lucia, Martina Catani, Alberto Cavazzini, Giulia Martelli, Dario Corbisiero, Paolo Cantelmi, Tommaso Fantoni, et al. "Sustainability in peptide chemistry: current synthesis and purification technologies and future challenges." Green Chemistry 24, no. 3 (2022): 975–1020. http://dx.doi.org/10.1039/d1gc04387k.

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25

Li, Hengzhao, Yuntong Zhang, Zihan Yan, Zemin Lai, Ruoyan Yang, Mengqi Peng, Yanhao Sun, and Jie An. "Methanol as the C₁ source: redox coupling of nitrobenzenes and alcohols for the synthesis of benzimidazoles." Green Chemistry 24, no. 2 (2022): 748–53. http://dx.doi.org/10.1039/d1gc03907e.

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26

Tan, Long, Yufeng Zhou, Fuqiang Ren, Daniele Benetti, Fan Yang, Haiguang Zhao, Federico Rosei, Mohamed Chaker, and Dongling Ma. "Ultrasmall PbS quantum dots: a facile and greener synthetic route and their high performance in luminescent solar concentrators." Journal of Materials Chemistry A 5, no. 21 (2017): 10250–60. http://dx.doi.org/10.1039/c7ta01372h.

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27

Dadhania, Harsh N., Dipak K. Raval, and Abhishek N. Dadhania. "Magnetically retrievable magnetite (Fe3O4) immobilized ionic liquid: an efficient catalyst for the preparation of 1-carbamatoalkyl-2-naphthols." Catalysis Science & Technology 5, no. 10 (2015): 4806–12. http://dx.doi.org/10.1039/c5cy00849b.

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28

Khatami, Mehrdad, Hajar Alijani, Meysam Nejad, and Rajender Varma. "Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products." Applied Sciences 8, no. 3 (March 10, 2018): 411. http://dx.doi.org/10.3390/app8030411.

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Анотація:

Among an array of hybrid nanoparticles, core-shell nanoparticles comprise of two or more materials, such as metals and biomolecules, wherein one of them forms the core at the center, while the other material/materials that were located around the central core develops a shell. Core-shell nanostructures are useful entities with high thermal and chemical stability, lower toxicity, greater solubility, and higher permeability to specific target cells. Plant or natural products-mediated synthesis of nanostructures refers to the use of plants or its extracts for the synthesis of nanostructures, an emerging field of sustainable nanotechnology. Various physiochemical and greener methods have been advanced for the synthesis of nanostructures, in contrast to conventional approaches that require the use of synthetic compounds for the assembly of nanostructures. Although several biological resources have been exploited for the synthesis of core-shell nanoparticles, but plant-based materials appear to be the ideal candidates for large-scale green synthesis of core-shell nanoparticles. This review summarizes the known strategies for the greener production of core-shell nanoparticles using plants extract or their derivatives and highlights their salient attributes, such as low costs, the lack of dependence on the use of any toxic materials, and the environmental friendliness for the sustainable assembly of stabile nanostructures.

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29

Bohra, Hassan, and Mingfeng Wang. "Direct C–H arylation: a “Greener” approach towards facile synthesis of organic semiconducting molecules and polymers." Journal of Materials Chemistry A 5, no. 23 (2017): 11550–71. http://dx.doi.org/10.1039/c7ta00617a.

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30

Jamalipour Soufi, Ghazaleh, and Siavash Iravani. "Eco-friendly and sustainable synthesis of biocompatible nanomaterials for diagnostic imaging: current challenges and future perspectives." Green Chemistry 22, no. 9 (2020): 2662–87. http://dx.doi.org/10.1039/d0gc00734j.

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31

Omori, Alvaro Takeo, Camila de Souza de Oliveira, Kleber Tellini Andrade, and Marina Gonçalves Capeletto. "Sassafras oil, carrot bits and microwaves: green lessons learned from the formal total synthesis of (−)-talampanel." RSC Advances 5, no. 125 (2015): 103563–65. http://dx.doi.org/10.1039/c5ra19483k.

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32

Fonte, Mélanie, Cátia Teixeira, and Paula Gomes. "Improved synthesis of antiplasmodial 4-aminoacridines and 4,9-diaminoacridines." RSC Advances 14, no. 9 (2024): 6253–61. http://dx.doi.org/10.1039/d4ra00091a.

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Анотація:

Greener, simpler and higher yield methods are greatly desirable for the production of acridines, given their relevance in the therapeutic field. Herein, we report an improved multi-step synthesis of antiplasmodial acridines.

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33

Singh, Shambhu Nath, Sarva Jayaprakash, K. Venkateshwara Reddy, Ali Nakhi, and Manojit Pal. "A metal catalyst-free and one-pot synthesis of (3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)methanol derivatives in water." RSC Advances 5, no. 103 (2015): 84889–93. http://dx.doi.org/10.1039/c5ra14478g.

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34

Byrne, Fergal P., Jamie M. Z. Assemat, Amy E. Stanford, Thomas J. Farmer, James W. Comerford, and Alessandro Pellis. "Enzyme-catalyzed synthesis of malonate polyesters and their use as metal chelating materials." Green Chemistry 23, no. 14 (2021): 5043–48. http://dx.doi.org/10.1039/d1gc01783g.

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35

Wang, Xiaoxue, Yujie Qian, Hanyu Gao, Connor W. Coley, Yiming Mo, Regina Barzilay, and Klavs F. Jensen. "Towards efficient discovery of green synthetic pathways with Monte Carlo tree search and reinforcement learning." Chemical Science 11, no. 40 (2020): 10959–72. http://dx.doi.org/10.1039/d0sc04184j.

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36

Adil, Syed Farooq, Mohamed E. Assal, Mujeeb Khan, Abdulrahman Al-Warthan, Mohammed Rafiq H. Siddiqui, and Luis M. Liz-Marzán. "Biogenic synthesis of metallic nanoparticles and prospects toward green chemistry." Dalton Transactions 44, no. 21 (2015): 9709–17. http://dx.doi.org/10.1039/c4dt03222e.

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37

Giaccherini, Andrea, Giuseppe Cucinotta, Stefano Martinuzzi, Enrico Berretti, Werner Oberhauser, Alessandro Lavacchi, Giovanni Orazio Lepore, et al. "Green and scalable synthesis of nanocrystalline kuramite." Beilstein Journal of Nanotechnology 10 (October 29, 2019): 2073–83. http://dx.doi.org/10.3762/bjnano.10.202.

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The new generation of solar cells aims to overcome many of the issues created by silicon-based devices (e.g., decommissioning, flexibility and high-energy production costs). Due to the scarcity of the resources involved in the process and the need for the reduction of potential pollution, a greener approach to solar cell material production is required. Among others, the solvothermal approach for the synthesis of nanocrystalline Cu–Sn–S (CTS) materials fulfils all of these requirements. The material constraints must be considered, not only for the final product, but for the whole production process. Most works reporting the successful synthesis of CTS have employed surfactants, high pressure or noxious solvents. In this paper, we demonstrate the synthesis of nanocrystalline kuramite by means of a simpler, greener and scalable solvothermal synthesis. We exploited a multianalytical characterization approach (X-ray diffraction, extended X-ray absorption fine structure, field emission scanning electron microscopy, Raman spectroscopy and electronic microprobe analysis (EMPA)) to discriminate kuramite from other closely related polymorphs. Moreover, we confirmed the presence of structural defects due to a relevant antisite population.

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Chauhan, Kalpana, Rahul Sharma, Rohini Dharela, Ghanshyam Singh Chauhan, and Rakesh Kumar Singhal. "Chitosan-thiomer stabilized silver nano-composites for antimicrobial and antioxidant applications." RSC Advances 6, no. 79 (2016): 75453–64. http://dx.doi.org/10.1039/c6ra13466a.

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Nthunya, Lebea N., Monaheng L. Masheane, Soraya P. Malinga, Tobias G. Barnard, Edward N. Nxumalo, Bhekie B. Mamba, and Sabelo D. Mhlanga. "UV-assisted reduction of in situ electrospun antibacterial chitosan-based nanofibres for removal of bacteria from water." RSC Advances 6, no. 98 (2016): 95936–43. http://dx.doi.org/10.1039/c6ra19472a.

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Yayayürük, Aslı Erdem, and Onur Yayayürük. "Applications of Green Chemistry Approaches in Environmental Analysis." Current Analytical Chemistry 15, no. 7 (October 15, 2019): 745–58. http://dx.doi.org/10.2174/1573411015666190314154632.

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Background: Green chemistry is the application of methodologies and techniques to reduce the use of hazardous substances, minimize waste generation and apply benign and cheap applications. Methods: In this article, the following issues were considered: greener solvents and reagents, miniaturization of analytical instrumentation, reagent-free methodologies, greening with automation, greener sample preparation methods, and greener detection systems. Moreover, the tables along with the investigated topics including environmental analysis were included. The future aspects and the challenges in green analytical chemistry were also discussed. Results: The prevention of waste generation, atomic economy, use of less hazardous materials for chemical synthesis and design, use of safer solvents, auxiliaries and renewable raw materials, reduction of unnecessary derivatization, design degradation products, prevention of accidents and development of real-time analytical methods are important for the development of greener methodologies. Conclusion: Efforts should also be given for the evaluation of novel solid phases, new solvents, and sustainable reagents to reduce the risks associated with the environment. Moreover, greener methodologies enable energy efficient, safe and faster that reduce the use of reagents, solvents and preservatives which are hazardous to both environment and human health.

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Ansary, Abu A., Asad Syed, Abdallah M. Elgorban, Ali H. Bahkali, Rajender S. Varma, and Mohd Sajid Khan. "Neodymium Selenide Nanoparticles: Greener Synthesis and Structural Characterization." Biomimetics 7, no. 4 (October 3, 2022): 150. http://dx.doi.org/10.3390/biomimetics7040150.

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This investigation presents the greener biomimetic fabrication of neodymium selenide nanoparticles (Nd2Se3 NPs) deploying nitrate-dependent reductase as a reducing (or redox) agent, extracted from the fungus, Fusarium oxysporum. The Nd2Se3 NPs, with an average size of 18 ± 1 nm, were fabricated with the assistance of a synthetic peptide comprising an amino acid sequence (Glu-Cys)n-Gly, which functioned as a capping molecule. Further, the NPs were characterized using multiple techniques such as UV-Vis spectroscopy, fluorescence, dynamic light scattering (DLS), and XRD. The hydrodynamic radii of biogenic polydispersed Nd2Se3 NPs were found to be 57 nm with PDI value of 0.440 under DLS. The as-made Nd2Se3NPs were water-dispersible owing to the existence of hydrophilic moieties (-NH2, -COOH, -OH) in the capping peptide. Additionally, these functionalities render the emulsion highly stable (zeta potential −9.47 mV) with no visible sign of agglomeration which bodes well for their excellent future prospects in labeling and bioimaging endeavors.

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Ingold, Mariana, Victoria de la Sovera, Rosina Dapueto, Paola Hernández, Williams Porcal, and Gloria V. López. "Greener Synthesis of Antiproliferative Furoxans via Multicomponent Reactions." Molecules 27, no. 6 (March 8, 2022): 1756. http://dx.doi.org/10.3390/molecules27061756.

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Prostate and bladder cancers are commonly diagnosed malignancies in men. Several nitric oxide donor compounds with strong antitumor activity have been reported. Thus, continuing with our efforts to explore the chemical space around bioactive furoxan moiety, multicomponent reactions were employed for the rapid generation of molecular diversity and complexity. We herein report the use of Ugi and Groebke–Blackburn–Bienaymé multicomponent reactions under efficient, safe, and environmentally friendly conditions to synthesize a small collection of nitric-oxide-releasing molecules. The in vitro antiproliferative activity of the synthesized compounds was measured against two different human cancer cell lines, LNCaP (prostate) and T24 (bladder). Almost all compounds displayed antiproliferative activity against both cancer cell lines, providing lead compounds with nanomolar GI50 values against the cancer bladder cell line with selectivity indices higher than 10.

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Mason, Brian P., Kristin E. Price, Jeremy L. Steinbacher, Andrew R. Bogdan, and D. Tyler McQuade. "Greener Approaches to Organic Synthesis Using Microreactor Technology." Chemical Reviews 107, no. 6 (June 2007): 2300–2318. http://dx.doi.org/10.1021/cr050944c.

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Azizi, Najmedin, Sahar Dezfooli, and Mohammad Mahmoudi Hashemi. "Greener synthesis of spirooxindole in deep eutectic solvent." Journal of Molecular Liquids 194 (June 2014): 62–67. http://dx.doi.org/10.1016/j.molliq.2014.01.009.

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Johnson, Eric C., Pablo E. Guzmán, Leah A. Wingard, Jesse J. Sabatini, and Rose A. Pesce-Rodriguez. "A Convenient and “Greener” Synthesis of Methyl Nitroacetate." Organic Process Research & Development 21, no. 7 (June 15, 2017): 1088–90. http://dx.doi.org/10.1021/acs.oprd.7b00093.

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Varughese, Deepu John, Maghar S. Manhas, and Ajay K. Bose. "Microwave enhanced greener synthesis of indazoles via nitrenes." Tetrahedron Letters 47, no. 38 (September 2006): 6795–97. http://dx.doi.org/10.1016/j.tetlet.2006.07.062.

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Akelis, Liudvikas, Jolanta Rousseau, Robertas Juskenas, Jelena Dodonova, Cyril Rousseau, Stéphane Menuel, Dominique Prevost, Sigitas Tumkevičius, Eric Monflier, and Frédéric Hapiot. "Greener Paal-Knorr Pyrrole Synthesis by Mechanical Activation." European Journal of Organic Chemistry 2016, no. 1 (December 9, 2015): 31–35. http://dx.doi.org/10.1002/ejoc.201501223.

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Margetic, Davor. "Mechanochemical Organic Synthesis - Powerful Tool in Greener Chemistry." Universal Journal of Green Chemistry 1, no. 1 (May 15, 2023): 44–56. http://dx.doi.org/10.37256/ujgc.1120232176.

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Organic chemical reactions are usually promoted by heating of reactants in various organic solvents. Amongst emerging synthetic methods mechanochemistry is recognized as being promissing in the reduction of the environmental impact by conducting chemical reactions in solid state. Energy required to promote transformation is obtained by mechanical force commonly by vibrational ball milling. Greener aspects of the mechanochemistry are in the reduction of solvent use, shorter reaction times, room temperature and better reactions yields in comparison to classical thermal solution conditions. This mini-review gives selected examples of eco-sustainable mechanochemical organic reactions.

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Chithiravel, Rengasamy, Kandasamy Rajaguru, Shanmugam Muthusubramanian, and Nattamai Bhuvanesh. "A direct green route towards the synthesis of 2-aroyl-3,5-diarylthiophenes from 1,5-diketones." RSC Advances 5, no. 105 (2015): 86414–20. http://dx.doi.org/10.1039/c5ra17829k.

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Sundar, Sasikala, and Shakkthivel Piraman. "Greener saponin induced morphologically controlled various polymorphs of nanostructured iron oxide materials for biosensor applications." RSC Advances 5, no. 91 (2015): 74408–15. http://dx.doi.org/10.1039/c5ra15166j.

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