Category: 931-40-8

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Preparation of mesoporous CaO-ZrO2 catalysts without template for the continuous synthesis of glycerol carbonate in a fixed-bed reactor, the main research direction is mesoporous CaO ZrO2 catalyst glycerol carbonate fixed bed reactor.Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one.

Recently, transformation of glycerol into glycerol carbonate (GLC) has been of critical importance. Although traditional Ca-based catalysts present high activity for the GLC synthesis, their industrial applications are hindered by the leaching of Ca2+. Here, a series of mesoporous CaO-ZrO2 with high surface area were obtained without template. CO2 temperature-programmed desorption displayed that the basic properties of the catalysts can be controlled by the content of Ca dopant. Importantly, Ca2+ can be introduced into t-ZrO2 lattice, resulting in the formation of a solid solution structure. Based on systematic experiments, a correlation between their basic properties and catalytic behavior was explained. Under the optimized conditions, the catalyst with a certain ratio of Ca: Zr = 0.6: 1 showed an excellent performance with a 97% glycerol conversion and a 93% selectivity of GLC. Furthermore, the solid solution structure rendered this catalyst high resistance to reactant flushing in a fixed-bed, without leaching of active sites.

There are many compounds similar to this compound(931-40-8)Safety of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Rittiron, Pacharaporn; Niamnuy, Chalida; Donphai, Waleeporn; Chareonpanich, Metta; Seubsai, Anusorn published an article about the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8,SMILESS:O=C1OCC(CO)O1 ).Recommanded Product: 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:931-40-8) through the article.

Glycerol carbonate (GLC) was synthesized from glycerol and di-Me carbonate over sodium aluminate (NaAlO2) catalysts. The catalysts were prepared using a spray-drying method and compared with those prepared using the conventional hot-air drying method. Polyvinylpyrrolidone and glycerol were used as a catalyst template to increase the surface area and porosity of the catalysts. Addnl., different operating conditions were investigated such as the catalyst concentration, glycerol-to-dimethyl carbonate ratio, reaction temperature, reaction time, and catalyst reusability. The NaAlO2 catalyst prepared using the spray-drying method with 30 wt% glycerol as the template yielded the maximum GLC (85%) with 100% GLC selectivity.

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Recommanded Product: 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

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 Exploring the Promotional Effects of K, Sr, and Mg on the Catalytic Stability of Red Mud for the Synthesis of Glycerol Carbonate from Renewable Glycerol, published in 2019-09-04, which mentions a compound: 931-40-8, Name is 4-(Hydroxymethyl)-1,3-dioxolan-2-one, Molecular C4H6O4, HPLC of Formula: 931-40-8.

The focus of this study was to utilize red mud (RM), an aluminum industry waste, for the preparation of various catalysts for the synthesis of glycerol carbonate (GC) from glycerol (GL). A series of catalysts were prepared by doping potassium, strontium, and magnesium on the surface of RM, and their effect on the stability of RM based catalysts was examined From preliminary studies, K-doped RM catalysts were found to have better activity as well as stability than the Sr- and Mg-doped RM catalysts for the transesterification of GL. The RK-30%-800 catalyst prepared by 30% K loading and calcination at 800 °C produced the highest activity and stability compared to other K-doped catalysts. The better activity of the RK-30% catalyst was due to the presence of the maximum surface concentration of active K2O, which was confirmed from the XRD anal. The surface concentration of K2O contributed significantly to the increased basic properties of the catalyst, which was quite evident from the acid-base titration, CO2-temperature programmed desorption (CO2-TPD), and Hammett indicator test. A probable mechanism of the GL transesterification process by using the RK-30%-800 catalyst was proposed. Moreover, effect of the presence of impurities on the catalytic activity, the reaction kinetics, reusability study, and deactivation mechanism were studied in detail here.

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)HPLC of Formula: 931-40-8. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 931-40-8, is researched, SMILESS is O=C1OCC(CO)O1, Molecular C4H6O4Journal, Article, Dalton Transactions called Synthesis of helical aluminium catalysts for cyclic carbonate formation, Author is Gaona, Miguel A.; de la Cruz-Martinez, Felipe; Fernandez-Baeza, Juan; Sanchez-Barba, Luis F.; Alonso-Moreno, Carlos; Rodriguez, Ana M.; Rodriguez-Dieguez, Antonio; Castro-Osma, Jose A.; Otero, Antonio; Lara-Sanchez, Agustin, the main research direction is cyclic carbonate preparation; epoxide carbon dioxide chem fixation helical aluminum catalyst.HPLC of Formula: 931-40-8.

Helical aluminum complexes [Al2X4(μ-nbptam)] (X = Me, Et; (nbptamH = N-naphthyl-2,2-bis(3,5-dimethylpyrazol-1-yl)thioacetamide)), [Al2X4(μ-fbpam)] (fbpamH = N-fluorenyl-2,2-bis(3,5-dimethylpyrazol-1-yl)acetamide), [Al3X7(μ-nbptam)] and [Al3X7(μ-fbpam)] have been prepared by treatment of scorpionate ligand precursors with two or three equivalent of the corresponding trialkylaluminum derivative AlX3. The structures of these complexes have been determined by spectroscopic methods and the X-ray crystal structure of complex [Al2X4(μ-nbptam)] (X = Me) has also been established. These complexes have been studied as catalysts for the chem. fixation of carbon dioxide into cyclic carbonates I (R = Ph, Me, CH2Cl, CH2OC6H5, etc.) and II (R1R2 = -(CH2)3-, R3 = H; R1 = R2 = Me, R3 = H; R1 = H, R2 = R3 = Me; R1 = H, R2 = R3 = Ph; R1 = H, R2 = Me, R3 = Ph) displaying good catalytic activity. When cis-cyclohexene oxide was used as a substrate, polyether-polycarbonate was obtained in a ratio which is highly dependent on the cocatalyst and the catalyst to cocatalyst ratio used.

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)HPLC of Formula: 931-40-8. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called A Ni3O-cluster based porous MOF for catalytic conversion of CO2 to cyclic carbonates, published in 2019-08-31, which mentions a compound: 931-40-8, mainly applied to nickel hydroxy aqua silanetriyltriisophthalato complex catalyst preparation crystal structure; gas adsorption nickel hydroxy aqua silanetriyltriisophthalato complex; cycloaddition catalyst nickel hydroxy aqua silanetriyltriisophthalato complex, Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one.

A novel Ni3O-based MOF, {[Ni3HL(μ3-OH)(H2O)2]•3(H2O)•DMA}n (1), was constructed based on an organosilicon hexacarboxylic acid linker of 5,5′,5”-(methylsilanetriyl)triisophthalic acid (H6L). In this structure, the deprotonated carboxylate groups assemble with trinuclear metal cluster nodes to give a 6-connected uninodal net. It possesses open channels and rich metal sites, and displays CO2 adsorption behavior. Further investigations indicate that the compound is catalytically effective for the cyclic carbonates by cycloaddition of CO2 to epoxides. Besides, the catalyst could be reused 5 times with no significant loss of catalytic activity and without structural deterioration.

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Solvent-free organocatalytic preparation of cyclic organic carbonates under scalable continuous flow conditions, published in 2019, which mentions a compound: 931-40-8, mainly applied to glycerol dimethyl carbonate transesterification solvent free organocatalyst, Formula: C4H6O4.

A solvent-free organocatalyzed process for the transesterification of DMC with 1,2-diols under scalable continuous flow conditions is presented. Process parameters, such as temperature, residence time, DMC/glycerol molar ratio and catalyst loading are optimized for the carbonation of bio-based glycerol using DBU as a model organocatalyst. The catalytic performance of DBU is next compared with other homogeneous organic superbases including the proton sponge, Verkade’s base, guanidines and phosphazenes. 2-Tert-butyl-1,1,3,3-tetramethylguanidine (Barton’s base) stands as the most efficient organocatalyst, providing glycerol carbonate at 87% selectivity and 94% conversion within 2 min of residence time at 1 mol% loading. Representative examples of PS-supported organic superbases of the amidine, guanidine and phosphazene-types are also considered as alternative heterogeneous catalysts. PS superbases typically enable up to 80 h of continuous operation with minor deactivation at elevated flow rates. The methodol. is amenable to a library of other 1,2-diols, including biomass-derived substrates. Depending on the unique structural features of both substrates and products, either online IR or online NMR anal. procedures are implemented for real-time qual. reaction monitoring. A final demonstrator showcases the transposition of the glycerol carbonation to a pilot-scale continuous flow reactor, affording the target cyclic carbonate with a 68.3 mol per day productivity (~8 kg per day).

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Formula: C4H6O4. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about MgO nanoparticles confined in ZIF-8 as acid-base bifunctional catalysts for enhanced glycerol carbonate production from transesterification of glycerol and dimethyl carbonate. Author is Chang, Cheng-Wei; Gong, Zi-Jie; Huang, Nai-Chieh; Wang, Cheng-Yu; Yu, Wen-Yueh.

MgO-loaded ZIF-8 catalysts (MgO@ZIF-8) with various MgO loadings were prepared and characterized using at. absorption spectroscopy (AAS), powder X-ray diffraction (PXRD), Fourier-transform IR spectroscopy (FT-IR), N2 sorption isotherms, field-emission transmission electron microscopy (FE-TEM), and thermogravimetric anal. (TGA). Our results indicate that MgO nanoparticles could deposit onto the ZIF-8 surface with high atom efficiency while maintaining the ZIF-8 structure through a wet-impregnation and calcination process. It is suggested that the surface sites and microporosity of ZIF-8 support provide an adequate environment for the initial deposition of Mg precursor and subsequent growth of MgO nanoparticles through a nanoconfinement effect. MgO@ZIF-8 catalysts were tested for catalytic transesterification of glycerol and di-Me carbonate to yield glycerol carbonate. It is found that the 50 wt% MgO@ZIF-8 catalyst display an improved catalytic activity than those of MgO and ZIF-8. Furthermore, the MgO@ZIF-8 catalysts showed higher catalytic activities than their phys.-mixed counterparts, indicative of a synergistic effect between MgO and ZIF-8, which is explained by a proposed mechanism based on acid-base bifunctional sites on the surface.

I hope my short article helps more people learn about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Apart from the compound(931-40-8), you can read my other articles to know other related compounds.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Okoye, Patrick U.; Wang, Song; Khanday, Waheed Ahmad; Li, Sanxi; Tang, Tao; Zhang, Linnan researched the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8 ).Computed Properties of C4H6O4.They published the article 《Box-Behnken optimization of glycerol transesterification reaction to glycerol carbonate over calcined oil palm fuel ash derived catalyst》 about this compound( cas:931-40-8 ) in Renewable Energy. Keywords: glycerol carbonate oil palm fuel ash Box Behnken optimization. We’ll tell you more about this compound (cas:931-40-8).

This study aimed to optimize the synthesis of valuable glycerol carbonate (GC) over calcined oil pam fuel ash derived catalyst. A surface response methodol. optimization study was conducted using the Box-Behnken optimization tool to minimize the reaction parameters and optimize GC yield and glycerol conversion. Also, the effect of intraparticle and external mass transfer resistance was conducted and the intrinsic kinetic model of the transesterification reaction was established. Overall, the transesterification temperature had significant effects on the variables of GC yield and glycerol conversion, while the catalyst loading and reaction time trivially affected the response parameters. Under optimized parameters of 80°C reaction temperature, di-Me carbonate (DMC)/glycerol molar ratio of 5, 5 wt% catalyst loading and 112 min reaction time, GC reached 95% with a desirability of 1. Theor. elucidation indicates that transesterification reaction over the catalyst was unaffected by external mass transfer resistance and intraparticle diffusion above 125μm particle size. The catalyst is heterogeneous and can be reused for five times while sustaining about 81.3% of GC yield.

Here is just a brief introduction to this compound(931-40-8)Computed Properties of C4H6O4, more information about the compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one) is in the article, you can click the link below.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Recommanded Product: 931-40-8. 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 Organocatalytic carbon dioxide fixation to epoxides by perfluorinated 1,3,5-triols catalysts. Author is Sperandio, Celine; Rodriguez, Jean; Quintard, Adrien.

In order to improve epoxides I (R1 = Me, Ph, CH2Cl, etc; R2 = H; R1R2 = -(CH2)4-) conversion to carbonates II by fixation of CO2 a new type of (4R,8R)-1,1,1,2,2,3,3,9,9,10,10,11,11,11-tetradecafluoroundecane-4,6,8-triol were developed. These simple acyclic scaffolds of enhanced acidity are efficient for catalysis through selective H-bonding activation of the epoxide. In combination with TBAI as co-catalyst, this useful transformation is performed under only 1 atm of CO2 and between 30 to 80°C. Both the 1,3,5-triol motif and the perfluorinated side chains are crucial in order to observe this epoxide opening under such mild conditions. In addition, the stereochem. of the starting (2R)-2-phenyloxirane can efficiently be conserved during the (4R)-4-phenyl-1,3-dioxolan-2-one formation.

Here is just a brief introduction to this compound(931-40-8)Recommanded Product: 931-40-8, more information about the compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one) is in the article, you can click the link below.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare

Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about The effect of silica-filler on polyurethane adhesives based on renewable resource for wood bonding. Author is Maminski, Mariusz L.; Wieclaw-Midor, Anna M.; Parzuchowski, Pawel G..

The aim of the study was to evaluate the applicability and performance of polyglycerol- and sucrose-based polyols as components of a simplified formulation of polyurethane adhesives. Colloidal silica was used as a viscosity control and reinforcing agent. The adhesives were examined in terms of reactivity, thermal stability, viscosity, work of adhesion, wetting, surface energy, and bonding strength on wooden substrates. Silica was found to increase gelling time, but markedly improved bonding strength and adhesion with substrates. Bonded solid beech wood samples prepared at 80, 110, and 130°C showed shear strengths between 7.1 MPa and 9.9 MPa with 100% wood failure. The renewable resource-based polyols were demonstrated to be useful in formulation of polyurethane adhesives for furniture industry-especially with silica as a filler.

Here is just a brief introduction to this compound(931-40-8)Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one, more information about the compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one) is in the article, you can click the link below.

Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare