Tag: 600-700

“Green” synthesis of sucrose octaacetate and characterization of its physicochemical properties and antimicrobial activity* was written by Petkova, N.;Vassilev, D.;Grudeva, R.;Tumbarski, Y.;Vasileva, I.;Koleva, M.;Denev, P.. And the article was included in Chemical and Biochemical Engineering Quarterly in 2017.Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate This article mentions the following:

Sucrose octaacetate (octa-O-acetylsucrose) has been synthesized by esterification of sucrose with acetic anhydride using ultrasound-assisted irradiation This sucrose ester is a white, water-insoluble substance with a bitter taste. The FT-IR and NMR spectra confirmed acetylation and revealed the hydrophobic incorporation in sucrose mol. Furthermore, the foamability, foam stability, emulsification and antimicrobial properties of octa-O-acetylsucrose were evaluated. Foams and 50 % (oil/water) model emulsions were prepared with 2 % (weight/weight) octa-O-acetylsucrose. The obtained results demonstrate the formation of emulsions and foams with high stability (50-70 %). The antimicrobial activity of octa-O-acetylsucrose was evaluated against seventeen microorganisms (Gram-pos. and Gram-neg. bacteria, yeasts, and fungi). Octa-O-acetylsucrose inhibited the growth of fungi Penicillium sp., Rhizopus sp. and Fusarium moniliforme at 5 mg cm^-3, and yeasts Candida albicans at 1 mg cm^-3. Inhibition against Gram-pos. and Gram-neg. bacteria was not observed The obtained results demonstrate the potential applications of octa-O-acetylsucrose as a foaming agent, oil-in-water emulsion stabilizer, and antifungal substance in pharmaceutical and cosmetic preparations In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Solid acid catalysis, and the advantages often associated with their use, have been proved equally efficient for the synthesis of tetrahydrofurans or furans. It is more basic than diethyl ether and forms stronger complexes with Li+, Mg2+, and boranes. It is a popular solvent for hydroboration reactions and for organometallic compounds such as organolithium and Grignard reagents.Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate

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

Structural Anomalies in Ionic Liquids near the Glass Transition Revealed by Pulse EPR was written by Ivanov, Mikhail Yu.;Prikhod’ko, Sergey A.;Adonin, Nicolay Yu.;Kirilyuk, Igor A.;Adichtchev, Sergey V.;Surovtsev, Nikolay V.;Dzuba, Sergei A.;Fedin, Matvey V.. And the article was included in Journal of Physical Chemistry Letters in 2018.COA of Formula: C28H38O19 This article mentions the following:

Unusual phys. and chem. properties of ionic liquids (ILs) open up prospects for various applications. We report the first observation of d./rigidity heterogeneities in a series of ILs near the glass transition temperature (T_g) by means of pulse ESR (EPR). Unprecedented suppression of mol. mobility is evidenced near the glass transition, which is assigned to unusual structural rearrangements of ILs on the nanometer scale. Indeed, pulse and continuous wave EPR clearly indicate the occurrence of heterogeneities near T_g, which exist in a rather broad temperature range of ∼50 K. The two types of local environments are evidenced, being drastically different by their stiffness. The more rigid one suppresses mol. mobility, whereas the softer one instead promotes diffusive mol. rotation. Such properties of ILs near T_g are of general importance; moreover, the observed d./rigidity heterogeneities controlled by temperature might be considered as a new type of tunable reaction nanoenvironment. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7COA of Formula: C28H38O19).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Tetrahydrofurans and furans are important oxygen-containing heterocycles that often exhibit interesting properties for biological applications or applications in the cosmetic industry. THF can also be synthesized by catalytic hydrogenation of furan. This allows certain sugars to be converted to THF via acid-catalyzed digestion to furfural and decarbonylation to furan, although this method is not widely practiced. THF is thus derivable from renewable resources.COA of Formula: C28H38O19

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

Determination of sucrose octaacetate by residual titration was written by Feng, Feng-cou;Pang, Xue-bin;Li, Shu-guang;Qiu, Ying-heng;Li, Jun. And the article was included in Jinri Yaoxue in 2013.SDS of cas: 126-14-7 This article mentions the following:

Objective: To establish a method for the determination of sucrose octaacetate. Methods: Residual titration was used, after the reaction of sucrose octaacetate with sodium hydroxide VS, the residual sodium hydroxide VS was titrated with sulfuric acid VS. Results: The average recovery was 100.1%, and RSD was 0.2%. Conclusion: The method is simple, feasible and reliable. It can be used for the quality control of sucrose octaacetate. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7SDS of cas: 126-14-7).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives.Tetrahydrofuran has many industry uses as a solvent including in natural and synthetic resins, high polymers, fat oils, rubber, polymer. THF (Tetrahydrofuran) is also used as a starting material for the synthesis of poly(tetramethylene ether) glycol (PTMG), etc.SDS of cas: 126-14-7

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

Determination of sucrose in honey with derivatization/solid-phase microextraction and gas-chromatography/mass spectrometry was written by Wang, Haijing;Geppert, Helmut;Fischer, Thomas;Wieprecht Detlev Moeller, Wolfgang. And the article was included in Journal of Chromatographic Science in 2015.Computed Properties of C28H38O19 This article mentions the following:

A new method for the determination of sucrose in honey with derivatization solid-phase microextraction and gas chromatog./mass spectrometry (D-SPME-GC/MS) was developed. The method incorporates a sample derivatization with acetic anhydride using N-methylimidazole as the catalyst and the subsequent enrichment of the analyte in a Polyacrylate-SPME fiber. Results show that 100 μL N-methylimidazole and 800 μL acetic anhydride were sufficient to complete the acetylation for sucrose in 100 μL aqueous sample at room temperature For SPME, an enrichment time of 30 min was sufficient. SPME was performed by immersing the fiber into the solution with addnl. vibration. Then, the analyte was desorbed for 5 min at 280°C in the GC/MS injection port with splitless mode. The present method exhibits good linearity at a concentration range of 0.3-8% of sucrose in honey with excellent regression (R = 0.9993). The method has been successfully applied to the control of sucrose adulteration in honey. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Computed Properties of C28H38O19).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is water-miscible and has a low viscosity making it a highly versatile solvent used in a variety of industries. Tetrahydrofuran reaction with hydrogen sulfide: In the presence of a solid acid catalyst, tetrahydrofuran reacts with hydrogen sulfide to give tetrahydrothiophene.Computed Properties of C28H38O19

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

Sucrose Octaacetate Chemical Kinetics and Shelf Lives at Various Formulation pHs was written by Gaddam, Shalini;Stagner, William C.. And the article was included in AAPS PharmSciTech in 2018.COA of Formula: C28H38O19 This article mentions the following:

Developing pediatric friendly dosage forms is a high priority worldwide. Sucrose octaacetate (SOA) has been recommended for use as a surrogate for bitter tasting active pharmaceutical ingredients. Even though SOA has found a number of human use applications and has been employed for decades, there are no rigorous chem. kinetic studies reported. A recently reported SOA stability-indicating method was used to perform SOA chem. kinetic and stability studies. As part of the chem. kinetic study, reaction order, activation energies, extrapolated rate constants, pH-rate profiles at 4 and 25°C, and estimated shelf lives at 4 and 25°C at different buffer pHs are provided. The estimated SOA shelf lives at 25°C and pHs 4.00, 5.20, and 6.00 were 25.3, 114, and 27.4 days, resp. At 4°C, SOA’s estimated shelf lives were 0.478, 5.26, and 1.47 years at pHs 4.00, 5.20, and 6.00, resp. SOA can be formulated at pHs 4 to 6 and stored at 25°C for short-duration (less than 25 days) uses such as a bitter tasting surrogate for fundamental taste mechanism studies or brief taste masking assessment clin. studies. For longer term solution studies, like being used as a bitter tasting control for blinded clin. trials, SOA should be formulated at the optimum pH of 5.40 and refrigerated at 4°C for maximum stability. The reported data can be used as a starting point for developing stable SOA formulations and estimating shelf life. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7COA of Formula: C28H38O19).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is water-miscible and has a low viscosity making it a highly versatile solvent used in a variety of industries. Tetrahydrofuran (THF) is primarily used as a precursor to polymers including for surface coating, adhesives, and printing inks.COA of Formula: C28H38O19

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

Regio-selective deprotection of peracetylated sugars via lipase hydrolysis was written by Fernandez-Lorente, Gloria;Palomo, Jose M.;Cocca, Jany;Mateo, Cesar;Moro, Paola;Terreni, Marco;Fernandez-Lafuente, Roberto;Guisan, Jose M.. And the article was included in Tetrahedron in 2003.Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate This article mentions the following:

Purified lipases (via interfacial activation on hydrophobic supports) from different microbial extracts have been evaluated in the regio-selective hydrolysis of peracetylated sugars (peracetylated glucose, ribose and sucrose). Among the enzymes tested, lipases from Candida rugosa (CRL) and from Pseudomonas fluorescens (PFL) exhibited the best properties in these reactions.Then, we have prepared two different immobilized lipase preparations obtained by interfacial activation on hydrophobic supports or by covalent attachment on glutaraldehyde agarose. Interfacially activated lipases exhibited a higher activity than covalently attached enzymes (even by a 100-fold factor), giving the higher yields of mono deacetylated sugars (in some instances by more than a threefold factor) in short reaction times. In the hydrolysis of 1,2,3,5-tetra-O-acetyl-β-D-ribofuranose catalyzed by PFL adsorbed on octyl agarosa, hydrolyzed mainly the three position (30% of yield) while the CRL gave the hydrolysis only in position five (about 50% of yield).Depending on the enzyme immobilized preparation, we have been able also to obtain selective hydrolysis of 1,2,3,4,6-penta-O-acetyl-α/β-D-glucopyranose obtaining a free hydroxyl group in position one, four or six. Moreover, selective hydrolysis in the 4′ position of peracetylated sucrose was achieved when the hydrolysis is performed with CRL immobilized on octyl-agarose (yield was 77%). In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Tetrahydrofurans and furans are important oxygen-containing heterocycles that often exhibit interesting properties for biological applications or applications in the cosmetic industry. It is more basic than diethyl ether and forms stronger complexes with Li+, Mg2+, and boranes. It is a popular solvent for hydroboration reactions and for organometallic compounds such as organolithium and Grignard reagents.Quality Control of (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate

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

Immobilizing taste-bud tissues of pigs to prepare bitterness biosensor was written by Qiao, Lixin;Liu, Tingting;Pang, Guangchang. And the article was included in Shipin Kexue (Beijing, China) in 2015.Related Products of 126-14-7 This article mentions the following:

Using sodium alginate-starch gel as a fixing agent, taste-bud tissues of pigs were fixed between two nuclear microporous membranes to make a sandwich-type sensing membrane, which was then fixed to a glassy carbon electrode to make a biosensor electrode. By using electrochem. workstation, the current produced when sucrose octaacetate, denatonium and quercetin stimulated their corresponding receptors were tested. The results showed that the lowest limit of detection of this biosensor for sucrose octaacetate, denatonium and quercetin were 1 × 10^-14, 1 × 10^-13 and 1 × 10^-14 mol/L and the maximum rate of change of the current was found at concentration levels of 1 × 10^-8, 1 × 10^-6 and 1 × 10^-9 mol/L, resp., indicating that their receptors are saturated It was demonstrated that the interaction curves of sucrose octaacetate, denatonium and quercetin with their resp. receptors exhibited high correlation (R² = 0.957 3, 0.987 3 and 0.996 4) in the concentration ranges of 1 × 10^-14-1 × 10^-11 mol/L, 1 × 10^-13-1 × 10^-7 mol/L and 1 × 10^-14-1 × 10^-9 mol/L, resp. This study not only quant. determined the interaction of the taste receptor and bitter substances with a new biosensor, but also provided a simple approach for monitoring bitter substances and investigating the mechanism of ligand-receptor interaction. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Related Products of 126-14-7).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is a stable compound with relatively low boiling point and excellent solvency. THF can also be synthesized by catalytic hydrogenation of furan. This allows certain sugars to be converted to THF via acid-catalyzed digestion to furfural and decarbonylation to furan, although this method is not widely practiced. THF is thus derivable from renewable resources.Related Products of 126-14-7

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

Updated definition of the three solvent descriptors related to the van der waals forces in solutions was written by Laffort, Paul. And the article was included in Open Journal of Physical Chemistry in 2018.Synthetic Route of C28H38O19 This article mentions the following:

Innovative viewpoint on the older topic of the van der Waals forces, is of interesting and significant issue to be concerned in both the fields related to the fundamental investigation and thus valuable in guiding the new physio-chem. phenomena and processes for both academic research and practical applications. The intermol. Van der Waals forces involved in solutions have been recently deeply reconsidered as far as the solute side is concerned. More precisely, the solute descriptors (or parameters) exptl. established, have been accurately related to mol. features of a Simplified Mol. Topol. In the present study, an equivalent result is reached on the solvent side. Both exptl. parameters have been obtained simultaneously in previous Gas Liquid Chromatog. studies for 121 Volatile Organic Compounds and 11 liquid stationary phases, via an original Multiplicative Matrix Anal. In that exptl. step, five groups of forces were identified, two of hydrogen bonding and three of Van der Waals: 1. dispersion (London), 2. orientation or polarity strictly speaking (Keesom), and 3. induction-polarizability (Debye). At this stage, an attempt of characterization the solvent parameters via the SMT procedure has been limited to those related to the Van der Waals forces, those related to the hydrogen bonding being for now left aside. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Synthetic Route of C28H38O19).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Solid acid catalysis, and the advantages often associated with their use, have been proved equally efficient for the synthesis of tetrahydrofurans or furans. Oxidations have also proved to be valuable and efficient approaches to chiral tetrahydrofuran derivatives.Synthetic Route of C28H38O19

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

Study on decreasing the burning rate of nitrate ester plasticized polyether propellant was written by Guan, Huan-xiang;Liu, Yun-fei;Yao, Wei-shang;Tan, Hui-min. And the article was included in Tuijin Jishu in 2007.Computed Properties of C28H38O19 This article mentions the following:

Reducing burning rate of nitrate ester plasticized polyether (NEPE) propellant was studied by means of adding some burning rate modifiers and adjusting its composition The results show that burning rate of the propellant can be decreased by enlarging the particle size of AP, reducing the ratio of NG/DEGDN, decreasing the content of AP and adding little content of burning rate modifiers. The burning rate under 7.0 MPa can be reduced to 6.87 mm/s with ratio 1:1:1 of burning rate modifiers glycerol triacetate/polyoxymethylene/sucrose octa-acetate. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7Computed Properties of C28H38O19).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Tetrahydrofuran and dihydrofuran form the basic structural unit of many naturally occurring scaffolds like gambieric acid A and ciguatoxin, goniocin, and some biologically active molecules. Tetrahydrofuran (THF) is primarily used as a precursor to polymers including for surface coating, adhesives, and printing inks.Computed Properties of C28H38O19

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

NMR of sucrose octaacetate was written by Xu, Min;Zhang, Gao;Wang, Min-chang;Qi, Zhu-chai. And the article was included in Guangpu Shiyanshi in 2012.SDS of cas: 126-14-7 This article mentions the following:

The chem. structure of sucrose octaacetate was analyzed by NMR techniques (including ¹H NMR, ¹³C NMR, ¹H-¹H COSY, HSQC, HMBC), and the signal of H NMR, C NMR was accurately assigned, and the results provided the important basis for synthesis and quality control of sucrose octaacetate. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7SDS of cas: 126-14-7).

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate (cas: 126-14-7) belongs to tetrahydrofuran derivatives. Tetrahydrofuran (THF) is a Lewis base that bonds to a variety of Lewis acids such as I2, phenols, triethylaluminum and bis(hexafluoroacetylacetonato)copper(II). THF can also be synthesized by catalytic hydrogenation of furan. This allows certain sugars to be converted to THF via acid-catalyzed digestion to furfural and decarbonylation to furan, although this method is not widely practiced. THF is thus derivable from renewable resources.SDS of cas: 126-14-7

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