Category: 931-40-8

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 Rational Study of DBU Salts for the CO2 Insertion into Epoxides for the Synthesis of Cyclic Carbonates.Computed Properties of C4H6O4.

A series of alkylated or protonated bicyclic amidine or DBU organocatalysts were studied for the synthesis of cyclic carbonates from CO2 and epoxides. The impact of the counteranion was examined in protonated samples where salts featuring halides displayed superior activity as a consequence of the nucleophilicity of the halide. The simple iodide salt of DBU ([HDBU]I) displayed the highest activity for the carboxylation of styrene oxide at 70° and 1 atm of CO2 pressure, obtaining 96% conversion after just 4 h. Alkylated salts showed lower catalytic activity than the analogous protonated salts. [HDBU]I also demonstrated broad substrate scope with a number of epoxides successfully converted to the corresponding carbonates, including cyclohexene oxide which is a challenging substrate. Furthermore, the catalyst could be recycled up to 6 times without losing catalytic activity. Mol. modeling was conducted to provide mechanistic insight, and it supported the importance of the nucleophilicity of the counteranion in the insertion of CO2 into epoxides and corroborated the exptl. observations.

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Chiral Catalysts,
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Recommanded Product: 931-40-8. 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 A review on recent trends in reactor systems and azeotrope separation strategies for catalytic conversion of biodiesel-derived glycerol. Author is Okoye, Patrick U.; Longoria, Adriana; Sebastian, P. J.; Wang, Song; Li, Sanxi; Hameed, B. H..

A review. The increasing demand for biodiesel (BD) as a renewable and sustainable energy source has impelled the generation of abundant and low-cost byproduct glycerol, which accounts for 10 wt% of total BD production and requires urgent utilization. The transesterification reaction, which utilizes glycerol and di-Me carbonate (DMC) to synthesize valuable glycerol carbonate (GC) is an established reaction pathway to valorize oversupplied glycerol. Commercialization of inexpensive GC is constrained by the nature, stability, and basicity of applied catalyst, reaction conditions, types of the reactor system and separation methods of reaction products. This study presents a review and diversity of recent reports on reactor systems and DMC-methanol azeotrope separation strategies explored in GC synthesis from biodiesel-derived glycerol. Also, recent trends on heterogeneous catalysts, their performance, and the effects of reaction conditions were presented. Conducted studies revealed that the choice for reactor systems is constrained by factors such as energy consumption and operational safety and a significant mild reaction conditions could be realized using a microwave reactor. Furthermore, the reactive-extractive distillation and pervaporation processes showed high energy-efficiency and appreciable separation of DMC-methanol azeotrope. Thus, the development of stable catalyst and process intensification to fabricate an integrated reactor-separation system with high energy efficiency are fundamental and must be explored. This study portrays the recent research effort made in this direction and the limitations that require urgent attention.

If you want to learn more about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)Recommanded Product: 931-40-8, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(931-40-8).

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Chiral Catalysts,
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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.Eisenhart, Andrew E.; Beck, Thomas L. researched the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8 ).HPLC of Formula: 931-40-8.They published the article 《Quantum Simulations of Hydrogen Bonding Effects in Glycerol Carbonate Electrolyte Solutions》 about this compound( cas:931-40-8 ) in Journal of Physical Chemistry B. Keywords: mol dynamics simulation hydrogen bonding glycerol carbonate electrolyte solution. We’ll tell you more about this compound (cas:931-40-8).

The need for environmentally friendly nonaqueous solvents in electrochem. and other fields has motivated recent research into the mol.-level solvation structure, thermodn., and dynamics of candidate organic liquids In this paper, we present the results of quantum d. functional theory simulations of glycerol carbonate (GC), a mol. that has been proposed as a solvent for green industrial chem., nonaqueous alternatives for biocatalytic reactions, and liquid media in energy storage devices. We investigate the structure and dynamics of both the pure GC liquid and electrolyte solutions containing KF and KCl ion pairs. These simulations reveal the importance of hydrogen bonding that controls the structural and dynamic behavior of the pure liquid and ion association in the electrolyte solutions The results illustrate the difficulties associated with classical modeling of complex organic solvents. The simulations lead to a better understanding of the underlying mechanisms behind the previously observed peculiar ion-specific behavior in GC electrolyte solutions

If you want to learn more about this compound(4-(Hydroxymethyl)-1,3-dioxolan-2-one)HPLC of Formula: 931-40-8, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(931-40-8).

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Chiral Catalysts,
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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, Catalysis Letters called Continuous Synthesis of Glycerol Carbonate by Transesterification of Glycerol with Dimethyl Carbonate Over Fe-La Mixed Oxide Catalysts, Author is Pattanaik, Piyusa P.; Kumar, P. Mahesh; Raju, N.; Lingaiah, N., the main research direction is glycerol dimethyl carbonate transesterification iron lanthanum oxide catalyst property.Application In Synthesis of 4-(Hydroxymethyl)-1,3-dioxolan-2-one.

Transesterification of glycerol with di-Me carbonate to produce glycerol carbonate was studied under continuous reaction over Fe-La mixed oxide catalysts. A series of Fe-La oxide catalysts with different molar compositions were synthesized by co-precipitation method. Surface and structural investigations of the catalysts were carried using N2 physisorption, powder X-ray diffraction, temperature-programmed desorption, XPS, FT-infra red spectroscopy, SEM and Laser Raman spectroscopy. Glycerol carbonate yield was influenced by the molar ratios of Fe/La and catalyst calcination temperature, which are responsible for the variation in acid-base properties of the catalysts. The catalyst with a molar ratio of 1:1 calcined at 550°C exhibited superior activity with 71% yield of glycerol carbonate. The synergistic effect between Fe-La oxides and the formation of LaFeO3 perovskite structure are responsible for the high activity of the catalyst. The catalyst exhibited unprecedented stability over 100 h during the time on stream anal.

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Reference:
Chiral Catalysts,
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