Green and Bio-Based Solvents

Calvo‐Flores, Francisco G.; Monteagudo-Arrebola, María José; Dobado, José A.; Isac‐García, Joaquín

doi:10.1007/s41061-018-0191-6

Cited by 159 publications

(134 citation statements)

References 166 publications

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“…(1)],w ee mbarked on the preparation of highly labile 2-chloro and 2-fluorophenylmagnesium bromide [Eq. (2)]. [40] To suppress spontaneous decomposition of Grignard reagents, preparation of Grignard reagents and addition of the electrophile were carried out at 0 8Ca nd À78 8C, respectively.U nder these conditions, the desired alcohols 6b and 6c were obtained in 66 %a nd 77 %y ields, respectively, demonstrating the advantage of 4-MeTHPo ver CPME.…”

Section: Applications To Grignard Reactionsmentioning

confidence: 99%

“…The selection of ar eactions olvent is important in am yriad of synthetic processes to make chemical andp harmaceutical products. [1,2] From an industrial point of view,s afety,h ealth and environmental aspects are seriously taken into account in addition to the general requirements of solubility,s tability,r emovability (volatility), and compatibility of reactants. [3][4][5][6][7] The traditional ethereal solvents, such as diethyl ether (Et 2 O), tetrahydrofuran (THF) and 1,4-dioxane, which are still used in many laboratory experiments today,a re highly recommended to be replaced by safer and greener solvents in pilot-scale synthesis, in order to avoid the risks of inflammability,e xplosion from peroxideb uild-up, and toxic exposure.…”

Section: Introductionmentioning

confidence: 99%

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4‐Methyltetrahydropyran (4‐MeTHP): Application as an Organic Reaction Solvent

Kobayashi

Tamura

Yoshimoto

et al. 2019

Chemistry An Asian Journal

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4-Methyltetrahydropyran (4-MeTHP) is ah ydrophobic cyclic ether with potential for industrial applications. We herein report, for the first time, ac omprehensive study on the performance of 4-MeTHP as an organic reaction solvent. Its broad application to organic reactions includes radical, Grignard, Wittig, organometallic, halogen-metal exchange, reduction,o xidation, epoxidation, amidation, esterification, metathesis, and other miscellaneous organic reactions. This breadth suggests4 -MeTHP can serve as a substitute for conventional ethers and harmful halogenated solvents. However,4 -MeTHP was found incompatible with strong Lewis acids, and the CÀOb ond was readily cleaved by treatment with BBr 3 .M oreover,t he radical-based degradation pathwayso f4 -MeTHP, THP and 2-MeTHF were elucidated on the basis of GC-MS analyses. The data reported herein is anticipated to be useful for ab road range of synthetic chemists,e specially industrial process chemists, when selecting the reactions olvent with green chemistry perspectives.[a] Dr.Scheme1.Manufacturing process of 4-MeTHP. IPEA = isopentyl alcohol, MHP = 2-hydroxy-4-methyltetrahydropyran, MPD = 3-methylpentan-1,5-diol.

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Section: Applications To Grignard Reactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

4‐Methyltetrahydropyran (4‐MeTHP): Application as an Organic Reaction Solvent

Kobayashi

Tamura

Yoshimoto

et al. 2019

Chemistry An Asian Journal

View full text Add to dashboard Cite

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“…Unlike ILs, which are made up of one type Bio-Solvents: Synthesis, Industrial Production and Applications DOI: http://dx.doi.org /10.5772/intechopen.86502 of discrete cation and anion [17], DESs are formed from an eutectic mixture of a hydrogen bond acceptor (HBA), mostly quaternary ammonium salts, and a metal salt or hydrogen bond donor (HBD). The mixture forms a eutectic phase which has a lower melting point than the individual components [109]. There is a charge delocalization created through hydrogen bonding between, for example, a halide anion of the HBA and the HBD which causes the decrease in the melting point [18].…”

Section: Deep Eutectic Solventsmentioning

confidence: 99%

Bio-Solvents: Synthesis, Industrial Production and Applications

Oklu¹,

Matsinha²,

Makhubela³

2020

Solvents, Ionic Liquids and Solvent Effects

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Solvents are at the heart of many research and industrial chemical processes and consumer product formulations, yet an overwhelming number are derived from fossils. This is despite societal and legislative push that more products be produced from carbon-neutral resources, so as to reduce our carbon footprint and environmental impact. Biomass is a promising renewable alternative resource for producing bio-solvents, and this review focuses on their extraction and synthesis on a laboratory and large scale. Starch, lignocellulose, plant oils, animal fats and proteins have been combined with creative synthetic pathways, novel technologies and processes to afford known or new bio-derived solvents including acids, alkanes, aromatics, ionic liquids (ILs), furans, esters, ethers, liquid polymers and deep eutectic solvents (DESs)-all with unique physiochemical properties that warrant their use as solvation agents in manufacturing, pharmaceutical, cosmetics, chemicals, energy, food and beverage industries, etc. Selected bio-solvents, conversion technologies and processes operating at commercial and demonstration scale including (1) Solvay's Augeo™ SL 191 renewable solvent, (2) Circa Group's Furacell™ technology and process for making levoglucosenone (LGO) to produce dihydrolevoglucosenone (marketed as Cyrene™), (3) Sappi's Xylex ® technology and demonstration scale processes that aim to manufacture precursors for biosolvents and (4) Anellotech's Bio-TCat™ technology and process for producing benzene, toluene and xylenes (BTX) are highlighted.

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“…Therefore, the development of 2 of 19 innovative and sustainable strategies [16][17][18] appears to be necessary to generate a new framework for superhydrophobic surfaces. Environmentally friendly materials [19][20][21][22] are a forward-looking approach towards materials science because they also play an important role in applications to distinct ecosystems due to their benign properties. For that reason, eco-friendly surfaces without the presence of fluorine compounds remain a challenge [23,24].…”

Section: Introductionmentioning

confidence: 99%

Non-Fluorinated, Sustainable, and Durable Superhydrophobic Microarrayed Surface for Water-Harvesting

2020

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Water scarcity is a worldwide issue that significantly affects the environment, population, and economy of the arid zones. In this study, we report a straightforward method for water-harvesting based on modifications of the surface wettability. Using magnesium chloride, lauric acid, and electrodeposition process, a superhydrophobic surface (155°) is obtained. Morphological characterization techniques allow determination of the characteristic flower-like microstructures combined with close packed nanoarrays that lead to the hierarchical structure. Furthermore, the coating presents vertically aligned microarrays in a non-linear cone morphology formed by dynamic templating of hydrogen bubbles. From a chemical point of view, magnesium laurate is responsible for the surface tension decrease. To determine the durability of the obtained surface ultra-violet (UV) light test and abrasive paper test, tests are carried out revealing high durability against these severe conditions. The water-harvesting ability of the superhydrophobic surface is studied at 45° and 90° tilted samples. The capacity of the water to be harvested efficiently is found to be at 90° tilt under fog conditions. The use of green reactants associated with this hierarchical structure broadens a new scope for sustainable freshwater collection and it becomes an excellent example of a green solution.

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Green and Bio-Based Solvents

Cited by 159 publications

References 166 publications

4‐Methyltetrahydropyran (4‐MeTHP): Application as an Organic Reaction Solvent

4‐Methyltetrahydropyran (4‐MeTHP): Application as an Organic Reaction Solvent

Bio-Solvents: Synthesis, Industrial Production and Applications

Non-Fluorinated, Sustainable, and Durable Superhydrophobic Microarrayed Surface for Water-Harvesting

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