Category: 931-40-8

SDS of cas: 931-40-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Measurement system analysis on the external standard using an azeotropic mixture of ethylene glycol and detailed uncertainties. Author is Ahmad Hazmi, Ahmad Syafiq; Abd Maurad, Zulina; Mohd Noor, Mohd Azmil; Nek Mat Din, Nik Siti Mariam; Idris, Zainab.

Ethylene glycol is a super commodity chem. and it has vital roles in various applications. Its co-production with other chems., such as ethylene carbonate and glycerol carbonate, has promised cheaper production cost. Its quantification presents a challenge as its contaminants, such as ethylene carbonate, produce a signal-reducing effect in flame ionized detector. The aim of this study is to evaluate external standard to quantify the composition of glycol mixture Measurement system anal. was employed on the external standard method. Reliability of the external standard is statistically significant with low p-values, excellent capability indexes, and high F-values. The external standard is found to have remarkable precision and trueness as both capability indexes are mirroring each other. Furthermore, the capability anal. has a strong correlation with quality measurement. Based on capability indexes, the limit of detection is recommended at S/N = 25 and the limit of quantification is recommended at S/N = 100 for a reliable measurement. A high degree of reliability is achieved coherently as almost all uncertainties of coefficients of variations are less than 5%. The established method was validated and successfully applied to glycol mixture at azeotropic distillation pilot plant.

Although many compounds look similar to this compound(931-40-8)SDS of cas: 931-40-8, numerous studies have shown that this compound(SMILES:O=C1OCC(CO)O1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Monodisperse mesoporous La2O3 flakes for the synthesis of glycerol carbonate by efficiently catalyzing the transesterification of dimethyl carbonate with glycerol, published in 2019-12-31, which mentions a compound: 931-40-8, Name is 4-(Hydroxymethyl)-1,3-dioxolan-2-one, Molecular C4H6O4, Synthetic Route of C4H6O4.

Monodisperse mesoporous La2O3 flakes were prepared by hydrothermal methods using polyethylene glycol as pore-expanding agent, the catalyst exhibited better catalytic activity than normal La2O3 in the reaction of glycerol and di-Me carbonate to produce glycerol carbonate. The influence of the mol. weight of polyethylene glycol and the mass ratio of La(NO3)3·6H2O/polyethylene glycol on the catalyst was investigated. The results showed that the morphol. of La2O3 was remolded to porous flakes interestingly by the suitable type and dosage of pore-expanding agent, this change made the La2O3 catalyst particles have higher alkalinity, better crystallinity, larger sp. surface area and good dispersion, which greatly improved the catalytic performance of the catalyst. In addition, the optimal reaction conditions were studied. As a result, the as-prepared porous La2O3 modified by polyethylene glycol-20000 showed excellent catalytic performance with high glycerol carbonate yield of 99.4% under the optimal reaction conditions as follows: the glycerol/dimethyl carbonate molar ratio was 1:5, the catalyst dosage was 5.0 wt% to glycerol, the reaction temperature was 85°C and the reaction time was 0.5 h. The catalyst had outstanding stability after six cycle reactions with almost no loss of catalytic activity. Thereby, the catalyst was considered to possess the promising potential in industrial production for catalyzing glycerol to the high value-added chem. glycerol carbonate.

Although many compounds look similar to this compound(931-40-8)Synthetic Route of C4H6O4, numerous studies have shown that this compound(SMILES:O=C1OCC(CO)O1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Synthetic Route of C4H6O4. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Functionalized quaternary ammonium salt ionic liquids (FQAILs) as an economic and efficient catalyst for synthesis of glycerol carbonate from glycerol and dimethyl carbonate. Author is Elhaj, Elrasheed; Wang, Huajun; Gu, Yanlong.

A series of functionalized quaternary ammonium salt ionic liquids (FQAILs) with different functional groups, such as hydroxyl, carboxyl, ether group, and amino, were prepared and used as a catalyst for the synthesis of glycerol carbonate from transesterification of glycerol and di-Me carbonate without any addnl. organic solvent and co-catalyst. The effects of functional groups, anions (Cl-, Br-, I-, OH-), and reaction parameters were investigated in detail. It is found that both the cation and anion of FQAILs display an important effect on its catalytic activity. Among these FQAILs, hydroxyl functionalized ionic liquid, [HPTPA]OH possesses the highest activity because there are the strong interactions between hydroxyl and di-Me carbonate mol. and between anion OH- and glycerol mol., which were shown by FTIR spectra. The glycerol conversion of 96.2% and glycerol carbonate yield of 87.6% can be obtained over [HPTPA]OH under moderate conditions of reaction temperature of 80 °C, reaction time of 90 min, di-Me carbonate/glycerol molar ratio of 3, and catalyst amount of 0.9 mol% based on glycerol amount The [HPTPA]OH catalyst can be reused at least three cycles without significant reduction in its catalytic activity. Finally, a possible reaction mechanism for the synthesis of glycerol carbonate is also proposed.

Compounds in my other articles are similar to this one(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Synthetic Route of C4H6O4, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Disposable baby diapers waste derived catalyst for synthesizing glycerol carbonate by the transesterification of glycerol with dimethyl carbonate. Author is Wang, Song; Wang, Jianye; Sun, Pengliang; Xu, Lanlan; Okoye, Patrick U.; Li, Sanxi; Zhang, Linnan; Guo, Anbang; Zhang, Jin; Zhang, Ailing.

In this work, the superabsorbent polymer (SAP) in the disposable baby diapers waste (DBDW) was carbonized at different temperatures to prepare a series of base catalysts. The carbonization behavior of the SAP was examined by thermogravimetric anal. (TGA). The structure and morphol. of the as-prepared catalysts were investigated by field emission scanning electron microscope (FESEM), Fourier transform IR spectroscopy (FTIR), X-ray Diffraction (XRD), Brunauer-Emmet-Teller surface area measurement (BET), and acid-base titration technique. The catalytic ability of these catalysts in the transesterification reaction of glycerol with di-Me carbonate (DMC) was compared. Among them, the catalyst prepared by the carbonization of the SAP collected from the DBDW at 500 °C in nitrogen was the most suitable one for the synthesis of glycerol carbonate (GC) by the transesterification of glycerol with DMC. This catalyst showed good catalytic activity with the glycerol conversion of 95.6% and GC yield of 93.6%. Moreover, it exhibited high reusability after eight-time reuse in the reaction.

Compounds in my other articles are similar to this one(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Product Details of 931-40-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about A Facile Approach to Develop Rice Husk Derived Green Catalyst for One-pot Synthesis of Glycerol Carbonate from Glycerol. Author is Arora, Shivali; Gosu, Vijayalakshmi; Arun Kumar, U. K.; Subbaramaiah, Verraboina.

The profitability margin of biodiesel production hampering due to surplus amount of glycerol with the low market price. Thus, developing an alternative route highly demanded for the conversion of glycerol into value-added chems. In the present manuscript, green synthesis route was explored by utilizing rice husk derived catalyst. The catalytic properties of the prepared catalyst were investigated by using various characterization techniques. The basic strength of the catalyst was influenced by varying the calcination temperature (200 °C to 500 °C) as well as active metal (cerium) loading (5[n.8198]weight % to 20[n.8198]weight %). The present investigation revealed that 10[n.8198]weight % Ce on Na2SiO3 catalyst calcined at 400 °C exhibited the moderate basic sites of 13.89[n.8198]mmol/g, which showed potential catalytic activity for the transesterification of glycerol to glycerol carbonate under optimum condition: 92 % glycerol carbonate yield and 98 % glycerol conversion. The catalyst stability study revealed that the catalyst could be reused up to four consecutive cycles without an appreciable drop in catalytic activity. The kinetics of the reaction was also studied, and the activation energy was calculated as 23.80[n.8198]kJ/mol.

Compounds in my other articles are similar to this one(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Product Details of 931-40-8, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one(SMILESS: O=C1OCC(CO)O1,cas:931-40-8) is researched.HPLC of Formula: 13925-00-3. The article 《Applicability of Organic Carbonates as Green Solvents for Membrane Preparation》 in relation to this compound, is published in ACS Sustainable Chemistry & Engineering. Let’s take a look at the latest research on this compound (cas:931-40-8).

Common polar aprotic solvents, like N,N-dimethylformamide (DMF), 1,4-dioxane, N,N-dimethylacetamide (DMA) and THF, are excellent for membrane preparation However, due to their toxicity or volatile nature, it would be useful to replace them by “”greener”” solvents for environmental and health reasons. In this work, organic carbonates, obtainable through carbon dioxide fixation, were selected as green solvents to find possible use in membrane preparation Polymer solubility experiments were performed to screen their applicability in the phase inversion process to create porous membrane with appropriate structures and selectivities. Hansen solubility parameters were used to rationalize the solubility results. Membrane morphol. and pore structure were characterized using SEM, while the performance of the membrane was determined by applying a 35 μM aqueous feed solution of rose bengal (RB, MW = 1017 Da) to screen the potential of these polymer/organic carbonate systems toward nanofiltration application.

Compounds in my other articles are similar to this one(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Product Details of 931-40-8, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Progress of catalytic valorization of bio-glycerol with urea into glycerol carbonate as a monomer for polymeric materials》. Authors are Zhang, Heng; Li, Hu; Wang, Anping; Xu, Chunbao; Yang, Song.The article about the compound:4-(Hydroxymethyl)-1,3-dioxolan-2-onecas:931-40-8,SMILESS:O=C1OCC(CO)O1).Electric Literature of C4H6O4. Through the article, more information about this compound (cas:931-40-8) is conveyed.

A review. Versatile polymers with highly adjustable characteristics and a broad range of applications are possibly developed owing to the contemporary industrial polymerization techniques. However, industrial production of large amounts of chems. and polymers heavily depends on petroleum resources which are dwindling and unsustainable. Of particular interest is to utilize sustainable and green resources for the manufacture of polymeric materials. The efficient transformation of bio-glycerol to the relevant functional derivatives are being widely investigated owing to the increasing demand for enhancing the value of glycerol manufactured by biodiesel and oleochem. industries. With respect to glycerol-based polymer chem. and technol., considering the economy and environmental benefits, using effective catalysts for the selective transformation of bio-glycerol and urea into glycerol carbonate (GC) as a polymer monomer is of great significance. In this review, recent studies on GC synthesis involving the catalysts such as zinc, magnesium, tungsten, ionic liquid-based catalysts, reaction conditions, and possible pathways are primarily described. Some critical issues and challenges with respect to the rational development of heterogeneous catalytic materials like well-balanced acid-base sites are also illustrated.

In some applications, this compound(931-40-8)Electric Literature of C4H6O4 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about ONO pincer type ligand complexes of Al(III) as efficient catalyst for chemical fixation of CO2 to epoxides at atmospheric pressure.Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one.

A series of ONO pincer hydrazone based most active mono-nuclear Al(III) complexes was successfully synthesized and characterized with the help of NMR, IR and mass spectrometry and only one complex with thiophen-2-yl group was confirmed by single-crystal anal. The synthesized Al(III) complexes were then employed as capable catalysts for the solvent-free chem. fixation of CO2 with epoxides I (R1 = CH3, CH2Cl, Ph, CH2=CH, etc.) at atm. pressure and could be reused five times without loss of any catalytic activity. In addition, the catalytic mechanism was investigated by analyzing intermediates via 1H NMR, 13C NMR, and mass MALDI-TOF. The excellent catalytic performance could be due to simultaneous attack and the opening of the epoxide by metal centers to form an alkoxide ion which activates the CO2 the same time.

In some applications, this compound(931-40-8)Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Eisenhart, Andrew E.; Beck, Thomas L. published the article 《Specific Ion Solvation and Pairing Effects in Glycerol Carbonate》. Keywords: solvation ion pairing glycerol carbonate solvent DFT MD simulation; halide alkali ion solvation glycerol carbonate solvent DFT MD.They researched the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8 ).Computed Properties of C4H6O4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:931-40-8) here.

Identifying the driving forces behind the solvation of inorganic salts by nonaqueous solvents is an important step in the development of green solvents. Here we focus on one promising solvent: glycerol carbonate (GC). Using ab initio mol. dynamics simulations, we build upon our previous work by detailing glycerol carbonate’s interactions with a series of anions, a lithium ion, and the LiF ion pair. Through these investigations, we highlight the changes in solvation behavior as the anion size increases, the competition of binding shown by lithium for the oxygens of GC, and the behavior of the LiF ion pair in a GC solution These results indicate the importance of the cation’s identity in ion-pairing structure and dynamics and lend insight into the key factors behind the specific ion effects seen in GC.

In some applications, this compound(931-40-8)Computed Properties of C4H6O4 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one(SMILESS: O=C1OCC(CO)O1,cas:931-40-8) is researched.Electric Literature of C6H8N2. The article 《Studies on green synthesis of glycerol carbonate from waste cooking oil derived glycerol over an economically viable NiMgOx heterogeneous solid base catalyst》 in relation to this compound, is published in Journal of Cleaner Production. Let’s take a look at the latest research on this compound (cas:931-40-8).

The present study includes the transesterification reaction of waste glycerol produced in biodiesel industries with di-Me carbonate (DMC) in presence of magnesium nickel-based mixed oxide, an economically and highly potent cost-effective heterogeneous base catalyst. The catalyst was synthesized in different molar ratios via co-precipitation route. The main objective of this work is value addition of bio glycerol which is major drawbacks in biodiesel industries and economization of biodiesel production process through one of the value added product glycerol carbonate. First-time Ni Mg based mixed oxide catalyst was used in glycerol carbonate synthesis and obtained 82% yield at optimized reaction condition. The physicochem. characteristics of catalysts were analyzed through powder X-ray diffraction (XRD), SEM-EDX, N2-sorption, XPS, FTIR spectroscopy, TGA-DSC. The Gibbs free energy change (ΔG#) and enthalpy of activation (ΔH#) for transesterification reaction of glycerol was found to be 16.547 kJ mol-1 and118.73 kJmol-1 resp. The pos. value of Gibbs free energy change suggested the transesterification of glycerol followed endothermic non spontaneous pathway. Optimization of several reaction parameters like reaction time, temperature, DMC to GLY molar ratio, Catalyst loading percentage were well explained also the green chem. metrices of the catalyst was studied and found to be very suitable for transesterification reaction of glycerol.

When you point to this article, it is believed that you are also very interested in this compound(931-40-8)Name: 4-(Hydroxymethyl)-1,3-dioxolan-2-one and due to space limitations, I can only present the most important information.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare