October 13, 2022 | Page 3 of 10 | Heterocyclic Building Blocks-Tetrahydrofuran

Silva, Wesley R’s team published research in Molecular Catalysis in 2021-03-31 | 97-99-4

Molecular Catalysis published new progress about Carbon nanotubes. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Formula: C5H10O2.

Silva, Wesley R.; Matsubara, Elaine Y.; Rosolen, Jose M.; Donate, Paulo M.; Gunnella, Roberto published the artcile< Pd catalysts supported on different hydrophilic or hydrophobic carbonaceous substrate for furfural and 5-(hydroxymethyl)furfural hydrogenation in water>, Formula: C5H10O2, the main research area is palladium catalyst carbonaceous substrate furfural hydroxymethylfurfural hydrogenation water.

We hydrogenated furfural and 5-(hydroxymethyl)furfural (HMF) in water in a reaction catalyzed by Pd nanoparticles on carbonaceous materials with different morphol. and hydrophobic degree. The different Pd catalysts were prepared by dipping the carbonaceous material into a Pd0 micro-emulsion. The catalyst support affected the catalytic hydrogenation of furfural and HMF. By using micrometric active carbon (AC) combined with cup-stacked carbon nanotubes (CSCNTs) and Pd0/2+ nanoparticles (Pd), we obtained a micro/nanostructured material designated Pd/CSCNT-AC, which performed better than the other carbonaceous materials containing similar Pd nanoparticle loading. Pd/CSCNT-AC produced tetrahydrofurfuryl alc. from furfural with excellent selectivity (>99%). Unlike Pd on hybrophobic spheroid graphite or hydrophilic AC, Pd/CSCNT-AC hydrogenated both the C=O and C=C double bonds of furfural and catalyzed HMF hydrogenation at the C=O double bond more selectively: between 85% and 99% selectivity toward 2,5-dihydroxymethylfuran. We also investigated how temperature, hydrogen pressure, and reaction time affected HMF hydrogenation in water. Finally, Pd/CSCNT-AC was recycled several times without significant catalytic activity loss.

Molecular Catalysis published new progress about Carbon nanotubes. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Formula: C5H10O2.

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

Seleem, Mohamed M’s team published research in Journal of endourology in 2022-07-26 | 58-97-9

Journal of endourology published new progress about 58-97-9. 58-97-9 belongs to class tetrahydrofurans, and the molecular formula is C9H13N2O9P, Computed Properties of 58-97-9.

Seleem, Mohamed M; Desoky, Esam; Abdelwahab, Khaled; Bendary, Lotfy; Elderey, Mohamed S; Eliwa, Ahmed published the artcile< Flank-Free Modified Supine vs Prone Ultra-Mini-Percutaneous Nephrolithotomy in Treatment of Medium-Sized Renal Pelvic Stone: A Randomized Clinical Trial.>, Computed Properties of 58-97-9, the main research area is modified flank free supine position; prone position; renal pelvic stone; ultra-mini-percutaneous nephrolithotomy.

Introduction and Objectives: Percutaneous nephrolithotomy (PCNL) is the standard treatment of renal stone >2 cm. Ultra-mini-percutaneous nephrolithotomy (UMP) had emerged in the past decade as a new technique in treating renal stones <2 cm. In this study we compared between the outcome of UMP in prone position with the outcome of UMP in modified flank free supine position (FFSP). Materials and Methods: A prospective randomized study was conducted between January 2016 and April 2020, including 122 patients, divided into two matched groups. Group A included 61 patients who underwent UMP in FFSP, and Group B included 61 patients who underwent UMP in a prone position. All patients had a single renal pelvic stone 1-2 cm. Patients with a single kidney, renal anomalies, body mass index ≥40 kg/m2, history of ipsilateral renal surgery, and age <18 years were excluded. In both groups, the dilatation was done up to 13F; a holmium laser was used through a 9F ureteroscope for fragmentation. Nephrostomy tube and ureteral stent were used only when indicated. Results: In total, 122 patients were divided into two groups. The mean age was 40.09 ± 13.63 and 39.67 ± 13.80 years in both groups, respectively. The operative time was 63.64 ± 9.22 and 78.48 ± 9.55 minutes in Groups A and B, respectively (p = 0.0001). The fluoroscopy time was 3.47 ± 0.56 and 4.45 ± 0.39 minutes in Groups A and B, respectively (p = 0.0001). No significant difference was shown between both groups regarding operative and postoperative complications. Shift to mini-PCNL was needed in one patient in Group A and four patients in Group B because of impaired vision. The hospital stay was 25.36 ± 4.23 and 26.13 ± 4.76 hours in both groups, respectively. The initial stone-free rate was 95.1% and 91.8% in both groups, respectively. Conclusions: UMP in modified supine position shows comparable results with UMP in the prone position regarding stone-free rate, hospital stay, and perioperative complication, with significantly shorter operative and fluoroscopy time. Journal of endourology published new progress about 58-97-9. 58-97-9 belongs to class tetrahydrofurans, and the molecular formula is C9H13N2O9P, Computed Properties of 58-97-9.

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

Insyani, Rizki’s team published research in Applied Catalysis, B: Environmental in 2021-08-15 | 97-99-4

Applied Catalysis, B: Environmental published new progress about Ammonium-exchanged zeolites, NH4-beta Role: CAT (Catalyst Use), USES (Uses). 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Application In Synthesis of 97-99-4.

Insyani, Rizki; Barus, Amsalia Florence; Gunawan, Ricky; Park, Jaeyong; Jaya, Gladys Tiffany; Cahyadi, Handi Setiadi; Sibi, Malayil Gopalan; Kwak, Sang Kyu; Verma, Deepak; Kim, Jaehoon published the artcile< RuO2-Ru/Hβ zeolite catalyst for high-yield direct conversion of xylose to tetrahydrofurfuryl alcohol>, Application In Synthesis of 97-99-4, the main research area is RuO2 ruthenium Hbeta zeolite catalyst xylose tetrahydrofurfuryl alc.

Tetrahydrofurfuryl alc. (THFOL), a valuable biomass-derived chem., is an important precursor for producing linear diols and biodegradable solvents. Herein, we present the one-pot cascade conversion of xylose to THFOL over an Hβ zeolite-supported RuO2-Ru (RuO2-Ru/Hβ) catalyst. To elucidate the structure-property correlation of the RuO2-Ru/Hβ catalyst and achieve a high THFOL yield via sequential isomerization, dehydration, and hydrogenation, several synthesis methods, namely incipient wetness impregnation, reductive deposition, activated reductive deposition, and post-oxidative activated reductive deposition (ARD-O) were used. The best catalytic performance was obtained over the RuO2-Ru/Hβ-ARD-O catalyst. An almost complete conversion of xylose and a high THFOL yield of 61.8% were achieved after 1 h at 180°C under an initial H2 pressure of 3.0 MPa in THF. In-depth analyses of the RuO2-Ru/Hβ-ARD-O catalyst furfural (FFA)- and CO-probed diffuse reflectance IR Fourier transform spectra indicated the formation of RuO2 at the corner and edge sites of Ru nanoparticles. The direct conversion of FFA to THFOL at interfacial RuO2-Ru sites without furfuryl alc. (FOL) readsorption hindered the contact of FOL with the acidic support, which suppressed the formation of humin and other byproducts and led to a high THFOL yield.

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

Islam, Mohammed J’s team published research in Applied Catalysis, B: Environmental in 2021-12-15 | 97-99-4

Applied Catalysis, B: Environmental published new progress about Crystallinity. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Product Details of C5H10O2.

Islam, Mohammed J.; Granollers Mesa, Marta; Osatiashtiani, Amin; Manayil, Jinesh C.; Isaacs, Mark A.; Taylor, Martin J.; Tsatsos, Sotirios; Kyriakou, Georgios published the artcile< PdCu single atom alloys supported on alumina for the selective hydrogenation of furfural>, Product Details of C5H10O2, the main research area is palladium copper catalyst alumina support furfural hydrogenation.

Single-atom catalysts serve as a skilful control of precious metals on heterogenous catalysts where all active sites are accessible for catalytic reactions. Here we report the adoption of PdCu single-atom alloys supported on alumina for the selective hydrogenation of furfural. This is a special class of an atom efficient, single-site catalyst where trace concentrations of Pd atoms (0.0067 weight%) displace surface Cu sites on the host nanoparticle. Confirmed by EXAFS, the Pd atoms are entirely coordinated to Cu, with Pd-Cu bond lengths identical to that of a Cu-Cu bond. Selectively surface oxidized catalysts also confirm surface Pd atoms by EXAFS. These catalysts improve the conversion of furfural to furfuryl alc. compared to monometallic catalysts, as they have the advantages of Cu (high selectivity but poor activity) and Pd catalysts (superior activity but unselective) without the drawbacks, making them the optimal catalysts for green/atom efficient catalysis.

Applied Catalysis, B: Environmental published new progress about Crystallinity. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Product Details of C5H10O2.

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

Shao, Yuewen’s team published research in ACS Sustainable Chemistry & Engineering in 2020-04-06 | 97-99-4

ACS Sustainable Chemistry & Engineering published new progress about Biomass. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Related Products of 97-99-4.

Shao, Yuewen; Wang, Junzhe; Du, Huining; Sun, Kai; Zhang, Zhanming; Zhang, Lijun; Li, Qingyin; Zhang, Shu; Liu, Qing; Hu, Xun published the artcile< Importance of Magnesium in Cu-Based Catalysts for Selective Conversion of Biomass-Derived Furan Compounds to Diols>, Related Products of 97-99-4, the main research area is magnesium copper catalyst biomass furan diol.

Selectively hydrogenating the carbonyl of furfural and opening of the furan ring is challenging but crucial for efficient conversion of furfural to pentanediols, the valuable chems. In this study, CuMgAl catalysts with highly dispersed Cu particles and tunable basic sites were synthesized with layered double hydroxides as precursors for hydrogenation of furfural to furfuryl alc. (FA) and the subsequent hydrogenolysis of FA to 1,2-pentanediol and 1,5-pentanediol. The presence of varied content of Mg in the catalyst promoted dispersion of copper oxide and exposure of metallic copper species, weakened interaction between copper oxides and the carrier, suppressed sintering of metallic copper species, and increased abundance of the basic sites, promoting the catalytic activity/selectivity/stability. Strong chem. adsorption of the furan ring in FA on basic sites of the catalyst suppressed hydrogenation of the furan ring and facilitated opening of the furan ring in FA, the rate-determining step for formation of the diols. High yields of 1,2-pentanediol and 1,5-pentanediol are achieved over the copper-based catalyst via the hydrogenolysis of furfuryl alc.

ACS Sustainable Chemistry & Engineering published new progress about Biomass. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Related Products of 97-99-4.

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

Torres-Pacheco, Luis J.’s team published research in Electrochimica Acta in 2020 | 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.Name: 3-Hydroxydihydrofuran-2(3H)-one

Name: 3-Hydroxydihydrofuran-2(3H)-oneOn September 1, 2020 ,《Sorbitol electro-oxidation reaction on sub<10 nm PtAu bimetallic nanoparticles》 was published in Electrochimica Acta. The article was written by Torres-Pacheco, Luis J.; De Leon-Rodriguez, Antonio; Alvarez-Contreras, Lorena; Guerra-Balcazar, Minerva; Arjona, Noe. The article contains the following contents: Sorbitol is a highly available and functionalized polyalc., with vast industrial usages and with great potential for fuel cells application. However, few studies were done regarding its electrochem. oxidation Monometallic Au, Pt and PtAu with different compositions from Pt-rich (such as Pt85Au15) to Au-rich (Pt10Au90) nanomaterials were synthesized. Several parameters like sorbitol and KOH concentration, scan rate, charge-transfer resistance, and temperature were tested. According with the physicochem. characterization, average particle sizes from 5.6 to 6.5 nm were found for all electrocatalysts, while Pt at. percentages of 85, 60, 40, and 10% were obtained. XPS revealed shifts in Pt 4f and Au 4f core-levels related to electron d. changes by the interaction between these elements and as a result, the electrocatalytic properties for the sorbitol electrooxidation reaction (SOR) were modified. The PtAu nanomaterials presented an increase of the c.d. with the raise of the KOH and sorbitol concentrations, being Pt40Au60/C the most active electrocatalyst displaying 40 mA mg-1 at 0.1M sorbitol in 2 M KOH with an onset potential of -0.50 V vs. normal H electrode. This onset potential value was more neg. to that typically reported for other polyols like glycerol and ethylene glycol. The reaction pathway of Pt/C, Au/C and Pt40Au60/C was followed by chromatog. and spectroscopic techniques, finding that the complex surfaces of these electrocatalysts were capable to carry the SOR via several electrons (from 2 to 24 e-). In this manner, the high electrocatalytic activity of Pt40Au60/C was attributed to the electron d. changes that promote a higher electron transfer forming shorter-chain byproducts. In the part of experimental materials, we found many familiar compounds, such as 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Name: 3-Hydroxydihydrofuran-2(3H)-one)

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

Wang, Xing’s team published research in Analyst (Cambridge, United Kingdom) in 2020 | CAS: 696-59-3

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.HPLC of Formula: 696-59-3

HPLC of Formula: 696-59-3In 2020 ,《A pro-gastrin-releasing peptide imprinted photoelectrochemical sensor based on the in situ growth of gold nanoparticles on a MoS2 nanosheet surface》 appeared in Analyst (Cambridge, United Kingdom). The author of the article were Wang, Xing; Deng, Hongping; Wang, Chen; Wei, Qiuxi; Wang, Yanying; Xiong, Xiaoxing; Li, Chunya; Li, Wenwen. The article conveys some information:

Lamellar MoS2 nanosheets were successfully prepared by hydrothermal synthesis using 1-(3-mercaptopropyl)-3-methyl-imidazolium bromine (MIMBr) ionic liquid as a sulfur source and a morphol. control agent, and sodium molybdate as a molybdenum source. Gold nanoparticles were assembled on the surface of MoS2 nanosheets by the in situ reduction of chloroauric acid at low temperatures to successfully fabricate AuNP/2D-MoS2 nanocomposites, thus improving photoelectrochem. response. AuNP/2D-MoS2 nanocomposites were used as photoelec. active materials modified onto a glassy carbon electrode surface to construct a photoelectrochem. (PEC) sensor. Then, using 1-(N-pyrrolpropyl)-3-methyl-imidazolium bromine (PMIMBr) ionic liquid as a functional monomer and pro-gastrin-releasing peptide (Pro-GRP) as a template, a molecularly imprinted polymerized ionic liquid film was electrochem. deposited on an AuNP/2D-MoS2/GCE surface. Upon removing the templates, a molecularly imprinted photoelectrochem. sensor was constructed for the sensing of a tumor marker, pro-gastrin-releasing peptide. Exptl. conditions including ascorbic acid concentration, polymerization conditions, incubation time, and pH value of the incubation solution have been optimized. Under the optimized conditions, the molecularly imprinted photoelectrochem. sensor can specifically detect the target protein Pro-GRP in the range of 0.02 ng mL-1-5 ng mL-1 with a detection limit of 0.0032 ng mL-1 (S/N = 3). The practicability of this photoelectrochem. sensor was demonstrated by accurately determining Pro-GRP in human serum samples. In addition to this study using 2,5-Dimethoxytetrahydrofuran, there are many other studies that have used 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3HPLC of Formula: 696-59-3) was used in this study.

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

Li, Qingyin’s team published research in Science of the Total Environment in 2021 | CAS: 19444-84-9

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.Application of 19444-84-9

Application of 19444-84-9On September 10, 2021 ,《Co-hydrothermal carbonization of swine and chicken manure: Influence of cross-interaction on hydrochar and liquid characteristics》 was published in Science of the Total Environment. The article was written by Li, Qingyin; Zhang, Shu; Gholizadeh, Mortaza; Hu, Xun; Yuan, Xiangzhou; Sarkar, Binoy; Vithanage, Meththika; Masek, Ondrej; Ok, Yong Sik. The article contains the following contents:

Swine and chicken manures are abundant solid wastes that can be converted into carbonaceous materials through hydrothermal carbonization (HTC). Owing to their unique biochem. compositions, co-HTC of these two types of manures may have significant implications for the generated products. We investigated the co-HTC of swine manure and chicken manure to understand the influence of the interaction between contrasting manures on the properties of the derived products. The results indicated that co-HTC treatment enhanced the formation of solid product and improved the C and N contents, heating value, and energy yield of the resulting hydrochar. Regarding the ignition temperature and comprehensive combustion index, the combustion properties of the hydrochar were enhanced owing to the mutual effect of the HTC intermediates. Addnl., the interaction of the intermediates significantly impacted the transfer of nitrogenous species and generation of organic acids and organic polymers with fused-ring structures. Therefore, co-HTC processing of animal manures could potentially provide a sustainable pathway for the conversion of animal waste into solid products with improved characteristics compared to those produced by treating the two feedstocks sep. After reading the article, we found that the author used 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Application of 19444-84-9)

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

Li, Qingyin’s team published research in Science of the Total Environment in 2021 | CAS: 19444-84-9

Recommanded Product: 19444-84-9On October 15, 2021 ,《Co-hydrothermal carbonization of swine manure and cellulose: Influence of mutual interaction of intermediates on properties of the products》 was published in Science of the Total Environment. The article was written by Li, Qingyin; Lin, Haisheng; Zhang, Shu; Yuan, Xiangzhou; Gholizadeh, Mortaza; Wang, Yi; Xiang, Jun; Hu, Song; Hu, Xun. The article contains the following contents:

Co-hydrothermal carbonization (HTC) of livestock manure and biomass might improve the fuel properties of the hydrochar due to the high reactivity of the biomass-derived intermediates with the abundant oxygen-containing functionalities. However, the complicated compositions make it difficult to explicit the specific roles of the individual components of biomass played in the co-HTC process. In this study, cellulose was used for co-HTC with swine manure to investigate the influence on the properties of the hydrochar. The yield of hydrochar obtained from co-HTC reduced gradually with the cellulose proportion increased, and the solid yield was lower than the theor. value. This was because the cellulose-derived intermediates favored the stability of the fragments from hydrolysis of swine manure. The increased temperature resulted in the reduction of the hydrochar yield whereas the prolonged time enhanced the formation of solid product. The interaction of the co-HTC intermediates facilitated the formation of O-containing species, thus making the solid more oxygen- and hydrogen-rich with a higher volatility. In addition, the co-HTC affected the evolution of functionalities like -OH and C=O during the thermal treatment of the hydrochar and altered its morphol. by stuffing the pores from swine manure-derived solid with the microspheres from HTC of cellulose. The interaction of the varied intermediates also impacted the formation of amines, ketones, carboxylic acids, esters, aromatics and the polymeric products in distinct ways. The experimental process involved the reaction of 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Recommanded Product: 19444-84-9)

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

Kawamata, Yuki’s team published research in Industrial Crops and Products in 2021 | CAS: 19444-84-9

Kawamata, Yuki; Yoshikawa, Takuya; Koyama, Yoshihito; Ishimaru, Hiroya; Ohtsuki, Satoru; Fumoto, Eri; Sato, Shinya; Nakasaka, Yuta; Masuda, Takao published an article on January 31 ,2021. The article was titled 《Uniqueness of biphasic organosolv treatment of soft- and hardwood using water/1-butanol co-solvent》, and you may find the article in Industrial Crops and Products.Application of 19444-84-9 The information in the text is summarized as follows:

Biphasic organosolv treatment for soft- and hardwood using water/1-butanol was unique based on the correlation between liquid-phase states and solubility of the co-solvents when compared with a monophasic water/ethanol system. First, Pro II process simulator showed that water/1-butanol exhibited a biphasic system in the range of 1.6-19.0 mol/mol at a treatment temperature of 473 K. In addition, solubility of the co-solvents was evaluated using the Hildebrand solubility parameter (δ), which indicated that the biphasic system could simultaneously provide 28.5 and 42.0 MPa1/2 for the 1-butanol and water phase, resp. Each δ value appeared appropriate for lignin and hemicellulose dissolution because they were similar to those reported for lignin and a typical sugar. While hemicellulose could be removed by increasing water content in an organosolv of Japanese cedar sawdust, high lignin removal was achieved only under biphasic conditions. Carbon yield of each fraction (solid, 1-butanol-, and water-soluble fraction) and Py-GC/MS anal. revealed that lignin and hemicellulose could be recovered in the 1-butanol and water fractions, resp. The organosolv using Japanese cedar and willow was compared to the results when using monophasic water/ethanol. The results indicated that the co-solvent could not efficiently remove hemicellulose and lignin simultaneously because the monophasic system did not produce the level of solubility needed under the same conditions. In contrast, the biphasic water/1-butanol system achieved greater removal of hemicellulose and lignin compared to water/ethanol. The biphasic system was also applicable to separation of an industrial agricultural waste; sugarcane bagasse. Finally, the 2D-NMR spectra of 1-butanol-soluble lignin showed a trace amount of β-O-4 linkages in the lignin, indicating β-O-4 was cleaved via hydrolysis in the water phase during biphasic treatment. After reading the article, we found that the author used 3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Application of 19444-84-9)

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