Category: Tetrahydrofurans

Application In Synthesis of 2,5-DimethoxytetrahydrofuranIn 2021 ,《Functionalization of pyrrole derivatives as a way to improve their solubility in aqueous medium for applying in latent fingerprints development》 appeared in Forensic Chemistry. The author of the article were de Lyra, Ana Carolina F.; Silva, Luis P. A. da; de Lima Neto, Jorge; Costa, Cristiane V.; de Assis, Alexandro M. L.; de Freitas, Johnnatan D.; Lima, Dimas J. P.; Ribeiro, Adriana S.. The article conveys some information:

Latent fingerprints (LFPs) play an important rule for criminal investigations regarding to the identification and connection of an individual to a crime scene. Herein, we report a non-destructive method for LFPs development based on the electropolymerization of pyrrole derivatives modified with water-soluble groups on stainless steel surfaces containing fingerprint residues. The polymers, namely P1, P2, P3 and P4, and a copolymer of 4 with 3,4-ethylenedioxythiophene P(4-co-EDOT) were electrodeposited by oxidation of the monomers in aqueous LiClO4 by applying potentials (E) of 1.25-1.7 V vs. Ag/AgCl or c.d. (j) of 5.0-10 mA cm-2 for 15-240 s. The quality of the developed fingerprint images was verified by SEM, the Griaule Forensic Fingerprint software and the Bandey classification system. It was possible to observe the enhancement of the visual contrast between the surface and the fingerprint residues, providing high quality images of the developed fingerprints. In the experiment, the researchers used 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Application In Synthesis of 2,5-Dimethoxytetrahydrofuran)

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.Application In Synthesis of 2,5-Dimethoxytetrahydrofuran

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

《Interfacial Approach toward Benzene-Bridged Polypyrrole Film-Based Micro-Supercapacitors with Ultrahigh Volumetric Power Density》 was published in Advanced Functional Materials in 2020. These research results belong to Jiang, Kaiyue; Baburin, Igor A.; Han, Peng; Yang, Chongqing; Fu, Xiaobin; Yao, Yefeng; Li, Jiantong; Canovas, Enrique; Seifert, Gotthard; Chen, Jiesheng; Bonn, Mischa; Feng, Xinliang; Zhuang, Xiaodong. Application In Synthesis of 2,5-Dimethoxytetrahydrofuran The article mentions the following:

2D soft nanomaterials are an emerging research field due to their versatile chem. structures, easily tunable properties, and broad application potential. In this study, a benzene-bridged polypyrrole film with a large area, up to a few square centimeters, is synthesized through an interfacial polymerization approach. As-prepared semiconductive films exhibit a bandgap of ≈2 eV and a carrier mobility of ≈1.5 cm2 V-1 s-1, inferred from time-resolved terahertz spectroscopy. The samples are employed to fabricate in-plane micro-supercapacitors (MSCs) by laser scribing and exhibit an ultrahigh areal capacitance of 0.95 mF cm-2, using 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) as an electrolyte. Importantly, the maximum energy and power densities of the developed MSCs reach values up to 50.7 mWh cm-3 and 9.6 kW cm-3, resp.; the performance surpassing most of the 2D material-based MSCs is reported to date. In the experiment, the researchers used 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Application In Synthesis of 2,5-Dimethoxytetrahydrofuran)

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.Application In Synthesis of 2,5-Dimethoxytetrahydrofuran

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

The author of 《Depolymerization of alkaline lignin over mesoporous KF/γ-Al2O3》 were Guan, Yinshuang; Zhao, Wei; Liu, Kaishuai; Guo, Tiantian; Wang, Dingkai; Cui, Mingyu; Fu, Shuiyuan; Fan, Xing; Wei, Xianyong. And the article was published in New Journal of Chemistry in 2020. SDS of cas: 19444-84-9 The author mentioned the following in the article:

As a kind of biomass resource, lignin is the only natural renewable resource that can provide abundant aromatic compounds, which is undoubtedly considered as the best candidate to produce value-added chems. by lignin depolymerization Thus, it is of great significance to develop approaches that are able to accommodate the complex structure of lignin. Herein, an efficient depolymerization method is implemented in methanol using a mesoporous solid superbase KF/γ-Al2O3 catalyst. Research shows that the depolymerization of lignin is not obvious below the critical temperature of methanol, and the conversion of lignin increases significantly above the critical temperature, which can reach 60.6% at 270°C. Phenols and methoxy-substituted monocyclic aromatic compounds are predominant in the liquid products acquired by gas chromatog./mass spectrometry. Furthermore, oligomers were analyzed by time-of-flight mass spectrometry equipped with electrospray ionization. It is found that the mol. mass of the oligomers varied between 200 and 600 Da, the degree of unsaturation is mainly 4 and 8 with 1-2 aromatic rings, and the carbon number is found to be within the range of 15-30. It is speculated that the oligomers are mainly monophenyl or biphenyl compounds containing branched chains. In the experiment, the researchers used 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9SDS of cas: 19444-84-9)

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) is a 5-membered cyclic ester. It was obtained via tin-conversion of biomass-derived 1,3-dihydroxyacetone (DHA) and formaldehyde. And it may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis.SDS of cas: 19444-84-9

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

In 2022,Energies (Basel, Switzerland) included an article by Wu, Haijun; Shakeel, Usama; Zhang, Quan; Zhang, Kai; Xu, Xia; Xu, Jian. COA of Formula: C4H6O3. The article was titled 《Ethanol-Assisted Hydrothermal Liquefaction of Poplar Using Fe-Co/Al2O3 as Catalyst》. The information in the text is summarized as follows:

Although the conversion of lignocellulosic biomass into bio-oil with high yield/quality through hydrothermal liquefaction (HTL) is promising, it still faces many challenges. In this study, a Fex-Co(1-x)/Al2O3 catalyst was prepared with the coprecipitation method and low-content ethanol was used as the cosolvent for the HTL of poplar. The results showed that the Fex-Co(1-x)/Al2O3 catalyst significantly promoted the yield and energy recovery rate (ERR) of bio-oil compared with the control (10% ethanol content). At 260 °C for 30 min, 60Fe-40Co/Al2O3 had the best catalytic effect, achieving the highest bio-oil yield (67.35%) and ERR (93.07%). As a multifunctional bimetallic catalyst, Fex-Co(1-x)/Al2O3 could not only increase the degree of hydrogenation deoxidization of the product but also promote the diversity of phenolic compounds gained from lignin. The bio-oil obtained from HTL with Fex-Co(1-x)/Al2O3 as catalyst contained lower heterocyclic nitrogen, promoting the transfer of more bio-oil components to substances with lower b.p. The experimental process involved the reaction of 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9COA of Formula: C4H6O3)

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) is a 5-membered cyclic ester. It was obtained via tin-conversion of biomass-derived 1,3-dihydroxyacetone (DHA) and formaldehyde. And it may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis.COA of Formula: C4H6O3

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

《Phytochemical Screening, antioxidant Assay and Cytotoxic Profile for Different Extracts of Chrysopogon zizanioides Roots》 was written by Grover, Madhuri; Behl, Tapan; Virmani, Tarun. Recommanded Product: 3-Hydroxydihydrofuran-2(3H)-one And the article was included in Chemistry & Biodiversity on August 31 ,2021. The article conveys some information:

The Chrysopogon zizanioides plant possesses multiple traditional uses, especially in therapeutics, but only a few articles have reported its biol. activity. Hence, the present study was planned to explore the phytochem. constituents, cytotoxic potential, radical scavenging activity, and GC/MS (Gas chromatog. & Mass spectrometry) anal. of the vetiver root extracts The roots extracted with different solvents exhibited more significant phytochem. constituents in polar solvents in comparison to non-polar ones, favoring the extraction of a greater number of components in highly polar solvents. All the extracts were tested for their cytotoxicity using SRB (Sulforhodamine B) assay. They confirmed ethanolic extract as a potent extract with GI50 56±0.5 μg/mL in oral cancer (SCC-29B) along with no cytotoxicity in healthy cells (Vero cells), making it a safer therapeutic option in comparison to standard Adriamycin. This extract was also analyzed for its antioxidant potential by DPPH (1,1-Diphenyl-2-picrylhydrazyl) assay with IC50 value 10.73 μg/mL, which was quite comparable to Ascorbic acid having IC50 value 4.61 μg/mL. The quant. anal. of ethanolic extract exhibited 107 compounds amongst which Khusenic acid, Ascorbic acid, Junipen, gamma-Himachalene, alpha-Guaiene were the majorly occurring compounds that can be explored further for their cytotoxic activity. After reading the article, we found that the author used 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Recommanded Product: 3-Hydroxydihydrofuran-2(3H)-one)

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis. It may be employed as starting reagent in the synthesis of enantiomerically pure orthogonally protected δ-azaproline, via Mitsunobu reaction.Recommanded Product: 3-Hydroxydihydrofuran-2(3H)-one

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

《Comprehensive insights into xylan structure evolution via multi-perspective analysis during slow pyrolysis process》 was written by Liang, Jiajin; Chen, Jiao; Wu, Shubin; Liu, Chao; Lei, Ming. Recommanded Product: 19444-84-9 And the article was included in Fuel Processing Technology on April 30 ,2019. The article conveys some information:

Comprehension in hemicellulose pyrolysis is critical to generate renewable fuel and valuable chem. Herein, a self-designed tubular reactor was applied to observe the appearance alteration and chem. structure evolution during the whole xylan pyrolysis process. Before 200°C, it was free moisture removal stage without significant chem. structure alteration. Xylan began to depolymerize at 200°C corresponding with the appearance change from its original state to dark brown, cleavage of branched-chain and primary product acids & ketones generation. The main chain of xylan was completely broken at 250-350°C via β-1,4-glycosidic bond cleavage, dehydration, decarboxylation, and decarbonylation reaction. Acids were mainly originated from hemicellulose pyrolysis. The typical signals from FTIR, 13C CP/MAS NMR were disappeared at 350°C. In the carbonation stage, the C/H and C/O ratio reached 2.01 and 4.54, leading to the aromaticity enhancement of char and formation of carbon-centered radicals.3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Recommanded Product: 19444-84-9) was used in this study.

3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis. It may be employed as starting reagent in the synthesis of enantiomerically pure orthogonally protected δ-azaproline, via Mitsunobu reaction.Recommanded Product: 19444-84-9

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

SDS of cas: 696-59-3In 2021 ,《BN/BO-Ullazines and Bis-BO-Ullazines: Effect of BO Doping on Aromaticity and Optoelectronic Properties》 was published in Journal of Organic Chemistry. The article was written by Guo, Yongkang; Zhang, Lei; Li, Chenglong; Jin, Mengjia; Zhang, Yanli; Ye, Jincheng; Chen, Yu; Wu, Xiaoming; Liu, Xuguang. The article contains the following contents:

We have achieved substitutional doping of ullazine with either two BO units or with one BO unit and one BN unit. The synthesis of these B-doped ullazines is straightforward, using demethylation and borylative cyclization as the key steps. Ullazine cores of both BN/BO-ullazines (2) and bis-BO-ullazines (3) are very close to being planar. Their electronic and photophys. properties were investigated by UV-visible, fluorescence spectroscopy, cyclic voltammetry, and d. functional theory calculations The experimental part of the paper was very detailed, including the reaction process of 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3SDS of cas: 696-59-3)

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. Friedel Crafts reaction, for example, adds an alkyl or acyl group to aromatic ethers when they react with an alkyl or acyl halide in the presence of a Lewis acid as a catalyst.SDS of cas: 696-59-3

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Related Products of 696-59-3In 2020 ,《Symmetrical and unsymmetrical fluorine-rich ullazines via controlled cycloaromatizations》 was published in Organic Chemistry Frontiers. The article was written by Zhang, Guoxian; Gautam, Prabhat; Chan, Julian M. W.. The article contains the following contents:

Synthesis of a series of fluorine-rich ullazines I and II via well-controlled cycloaromatizations of highly electron-deficient alkynes was reported. Specifically, three sym.-functionalized and three unsym.-functionalized ullazine cores were constructed from 1-(2,6-dialkynylphenyl)-1H-pyrroles via controlled electrophilic cyclizations of highly electron-poor pentafluorosulfanylated (i.e., SF5-containing)phenylethynyl moieties onto the pyrrole. While the diminished reactivity of the electron-poor alkynes was initially problematic, this feature was subsequently found to be pivotal in facilitating thermal control of mono- vs. double 6-endo-trig ring-closure in the key step. Iodinated ullazine products were shown to undergo further facile transformation into more complex unsym. targets. The synthetic strategies reported herein granted access to a host of sym.- and unsym.-decorated fluorine-rich ullazines with potential value as light-harvesting materials (e.g., dye-sensitized solar cells, organic photovoltaics) or as advanced intermediates for further synthetic elaboration. After reading the article, we found that the author used 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Related Products of 696-59-3)

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. Friedel Crafts reaction, for example, adds an alkyl or acyl group to aromatic ethers when they react with an alkyl or acyl halide in the presence of a Lewis acid as a catalyst.Related Products of 696-59-3

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

In 2022,Chen, Chen; Ding, Jie; Liu, Liying; Huang, Yujie; Zhu, Bolin published an article in Advanced Synthesis & Catalysis. The title of the article was 《Palladium-Catalyzed Domino Cyclization/Phosphorylation of gem-Dibromoolefins with P(O)H Compounds: Synthesis of Phosphorylated Heteroaromatics》.Computed Properties of C6H12O3 The author mentioned the following in the article:

We presented a palladium-catalyzed domino cyclization/phosphorylation of gem-dibromoolefins, which utilize H-phosphinates and secondary phosphine oxides as the phosphine sources, resp. A variety of phosphorylated heteroaromatics were obtained in moderate to good yields with wide functional group compatibility. This one-pot reaction enables multiple bond-forming events including C-X (X = O, N, S) and C-P bonds using easily available starting materials. Moreover, this protocol can be easily applied to large-scale preparation and late-stage functionalization.2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Computed Properties of C6H12O3) was used in this study.

2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. Friedel Crafts reaction, for example, adds an alkyl or acyl group to aromatic ethers when they react with an alkyl or acyl halide in the presence of a Lewis acid as a catalyst.Computed Properties of C6H12O3

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Lovey, Raymond G.; Saksena, Anil K.; Girijavallabhan, Vlyyoor M. published their research in Tetrahedron Letters on August 15 ,1994. The article was titled 《PPL-catalyzed enzymic asymmetrization of a 2-substituted prochiral 1,3-diol with remote chiral functionality: improvements toward synthesis of the eutomers of SCH 45012》.Recommanded Product: 160709-02-4 The article contains the following contents:

Porcine pancreatic lipase catalysis has been used to establish both stereocenters of (tetrahydrofuranylmethyl)tosylate I. In addition to the enzymic differentiation of the hydroxyl groups of the pro-chiral 1,3-diol segment of triol (R)-II [R1 = CH(CH2OH)2], successful enzymic resolution of the racemic diol II (R1 = OH) provided an alternate route to the important precursor diol (R)-II (R1 = OH). In the experiment, the researchers used many compounds, for example, ((3R,5R)-5-((1H-1,2,4-Triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methanol(cas: 160709-02-4Recommanded Product: 160709-02-4)

((3R,5R)-5-((1H-1,2,4-Triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methanol(cas: 160709-02-4) is a member of aromaticfluorinated building blocks. Depending on which substituents are present, fluoroaromatic intermediates can be converted into fluorinated or fluorine-free commercial end products.Fluorine-containing aromatics have been incorporated into drugs (hypnotics, tranquilizers, antiinflammatory agents, analgesics, antibacterials).Recommanded Product: 160709-02-4

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem