Category: 1589-47-5

Tao, Duan-Jian published the artcileSynthesis of Tetrabutylphosphonium Carboxylate Ionic Liquids and Its Catalytic Activities for the Alcoholysis Reaction of Propylene Oxide, Application of 2-Methoxypropan-1-ol, the publication is Industrial & Engineering Chemistry Research (2013), 52(48), 17111-17116, database is CAplus.

Four tetrabutylphosphonium carboxylate ionic liquids ([P₄₄₄₄]-[CA]) were prepared, characterized, and used as catalysts for the synthesis of propylene glycol Me ether (PGME) from the alcoholysis reaction of propylene oxide (PO) with methanol. The effects of various parameters such as the kind of ILs, temperature, reaction time, catalyst loading, and molar ratio of the reactants on PGME yield and selectivity were also studied in detail. The results indicated that tetrabutylphosphonium butyrate ([P₄₄₄₄]-[Buty]) exhibited the best catalytic activity in comparison to three other carboxylate ILs, and PGME was produced in nearly 94% yield under mild conditions. In addition, [P₄₄₄₄]-[Buty] was found to exhibit good catalytic activities and selectivities in other alcoholysis reactions of epoxides with various alcs., such as PO with n-propanol, PO with n-butanol, 1-(allyloxy)-2,3-epoxypropane with methanol, and 1,2-epoxybutane with methanol. [P₄₄₄₄]-[Buty] could also be recovered easily and used repetitively at least 10 times without an obvious decrease in activity and quantity. Therefore, [P₄₄₄₄]-[Buty] proved to be an effective recyclable homogeneous catalyst for the synthesis of PGME and showed potential application in industry.

Industrial & Engineering Chemistry Research published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C8H5IO, Application of 2-Methoxypropan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Brei, V. V. published the artcileDehydrogenation of alcohols over copper catalyst: correlation between the activation energy of reaction and chemical shift δ (R17OH), Computed Properties of 1589-47-5, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (2017), 83(8), 117-122, database is CAplus.

The dehydrogenation of primary and secondary alcs. over Cu/ZnO-ZrO2-Al2O3 catalyst were studied using a desorption mass-spectrometry technique. The correlation between activation energy of reaction and chem. shift δ (R17OH) of studied alcs. was found. It is shown that ability of alcs. to dehydrogenation decreases with increase of their nucleofility. The mechanism of alc. dehydrogenation on metal copper clasters was proposed.

Ukrainskii Khimicheskii Zhurnal (Russian Edition) published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, Computed Properties of 1589-47-5.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Alibakhshi, A. published the artcilePrediction of flash points of pure organic compounds: Evaluation of the DIPPR database, Name: 2-Methoxypropan-1-ol, the publication is Process Safety and Environmental Protection (2017), 127-133, database is CAplus.

The flash point is one of the most important flammability properties of compounds for the design of inherently safe processes. Many models have been developed to predict the flash point using the DIPPR database. However, for only 740 of the 1628 organic compounds available in the DIPPR database, the data for both flash point and normal b.p. were exptl. determined For the other compounds, at least one of these properties was predicted and therefore is not appropriate for model development. The present study introduces a model to predict the flash points of pure organic compounds using their mol. structures and normal b.ps. The new model exploits the equality of the relative errors observed for the normal b.p. and flash point values predicted using the Joback method. Consequently, the relative error of the predicted normal b.ps. can be used as a scaling factor to modify the predicted flash points. The ability of the model to evaluate the accuracy of a database was investigated. The ratio of the relative error of the predicted flash point to the relative error of the predicted normal b.p. obtained using the Joback method was proposed as a measure to evaluate the accuracy of flash point data.

Process Safety and Environmental Protection published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, Name: 2-Methoxypropan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Panova, Maria V. published the artcileSupramolecular stereoelectronic effect in hemiketals, Quality Control of 1589-47-5, the publication is Mendeleev Communications (2017), 27(6), 595-598, database is CAplus.

Hemiketals are important targets for crystal prediction and mol. modeling. The supramol. stereoelectronic effect (SSE) recently found in carboxylic acid associates occurs in hemiketals: the presence and nature of an H-bond acceptor affect the conformational preference of hemiketals. To provide a structural basis for the multitude of biol. roles played by hemiketal-containing structures, it is important to accurately model their spatial and dynamic properties, so the SSE in hemiketals should be explicitly implemented in future force fields.

Mendeleev Communications published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, Quality Control of 1589-47-5.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Thakur, Khalid A. M. published the artcileProton MAS NMR analysis of phenyl silane functionalized silica nanoparticles, Synthetic Route of 1589-47-5, the publication is ACS Symposium Series (2011), 495-508, database is CAplus.

High temperature magic-angle-spinning (MAS) ¹H NMR was used to identify organic components on the surface of functionalized silica nanoparticles. The high temperature data acquisition, by preferential narrowing of resonances, enabled differentiation between species that were adsorbed or weakly bound vs. those that were covalently bound to the surface. MAS NMR of a sample as a slurry with appropriate solvent provided information similar to that obtained at higher temperatures With increasing temperature, gradual separation and up-field shift of silanol proton and water resonances at different rates was observed, possibly a result of diminished hydrogen bonding at increasingly higher temperatures

ACS Symposium Series published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C6H12O2, Synthetic Route of 1589-47-5.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Galebach, Peter H. published the artcileProduction of Alcohols from Cellulose by Supercritical Methanol Depolymerization and Hydrodeoxygenation, Application of 2-Methoxypropan-1-ol, the publication is ACS Sustainable Chemistry & Engineering (2018), 6(3), 4330-4344, database is CAplus.

The reaction pathway and products of cellulose supercritical methanol depolymerization and hydrodeoxygenation (SCM-DHDO) were investigated. Monoalcs., diols, alc. ethers, and Me esters were produced from cellulose at 300 °C with a CuMgAl mixed metal-oxide catalyst. Time-course experiments show that cellulose is rapidly solubilized and depolymerized within 1 h with C₂-C₄ diols being intermediates. Experiments with glucose-¹³C₆ show that methanol is incorporated in all liquid products accounting for approx. 30-40% of the carbon in these products. Experiments with model compounds (dihydroxyacetone, isosorbide, and 5-hydroxymethylfurfural) indicate that the reaction pathway for cellulose occurs primarily through retro-aldol condensation of solubilized cellulose followed by recondensation with methanol. Methanol produces H₂, CO, and CO₂ through reformation with 30% of the generated H₂ being incorporated into the liquid products. Anal. of the liquid products with Fourier transform ion cyclotron resonance MS (FT-ICR MS) measured C₇-C₁₂ partially oxygenated species with 2-6 double bond equivalence which could not be detected via gas chromatog. (GC). We conclude that the reaction pathway occurs through rapid solubilization and depolymerization of cellulose followed by retro-aldol condensation to C₂-C₄ oxygenates. Retro-aldol condensation products undergo hydrodeoxygenation and extensive carbon-carbon coupling to produce C₂-C₇ alcs. or other oxygenates.

ACS Sustainable Chemistry & Engineering published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, Application of 2-Methoxypropan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Mortazavi, Saeideh-Sadat published the artcileShip-in-bottle preparation of multi-SO₃H functionalized ionic liquid@MIL-100(Fe) for acid-catalyzed ring-opening of epoxides, Recommanded Product: 2-Methoxypropan-1-ol, the publication is Applied Organometallic Chemistry (2021), 35(12), e6424, database is CAplus.

The fact that the homogeneous acid catalysts are usually separated difficulty than heterogeneous catalysts from the reaction media, the opportunity to combine the advantages of both homogeneous and heterogeneous catalytic systems by immobilizing ILs within the pores of a porous solid support host is an alternative method. In this research, a multi-SO₃H functionalized ionic liquid derived from hexamethylenetetramine (HMTA) and 1,3-propane sultone was entrapped inside the pores of MIL-100(Fe) through the ship-in-bottle method and utilized for heterogeneous acid-catalyzed ring-opening of epoxides under solvent-free conditions. The physicochem. properties of prepared catalyst were fully elucidated by various methods. FT-IR spectroscopy and elemental anal. approved the successful incorporation of modified groups within the MIL-100(Fe) cavities. The concentration of acid sites was measured via the acid-base titration which exhibited the 0.9 mmol/g H⁺ in the catalyst structure. Also, thermogravimetric anal. (TGA) profile showed the loosing of modified groups at 300-600°C. Moreover, X-ray diffraction (XRD) anal. showed that the MIL-100(Fe) structure was retained after modification and nitrogen adsorption-desorption anal. (BET method) manifested the decrease in surface area caused by incorporation of ionic liquid The fabricated catalyst exhibited high catalytic efficiency in methanolysis of styrene oxide (99% conversion in 3 h) under ambient conditions and used without a substantial drop in product yield in further rounds.

Applied Organometallic Chemistry published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, Recommanded Product: 2-Methoxypropan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Zuend, A. published the artcileNew and extended parameterization of the thermodynamic model AIOMFAC: calculation of activity coefficients for organic-inorganic mixtures containing carboxyl, hydroxyl, carbonyl, ether, ester, alkenyl, alkyl, and aromatic functional groups, Synthetic Route of 1589-47-5, the publication is Atmospheric Chemistry and Physics (2011), 11(17), 9155-9206, database is CAplus.

We present a new and considerably extended parameterization of the thermodn. activity coefficient model AIOMFAC (Aerosol Inorganic-Organic Mixtures Functional groups Activity Coefficients) at room temperature AIOMFAC combines a Pitzer-like electrolyte solution model with a UNIFAC-based group-contribution approach and explicitly accounts for interactions between organic functional groups and inorganic ions. Such interactions constitute the salt-effect, may cause liquid-liquid phase separation, and affect the gas-particle partitioning of aerosols. The previous AIOMFAC version was parameterized for alkyl and hydroxyl functional groups of alcs. and polyols. With the goal to describe a wide variety of organic compounds found in atm. aerosols, we extend here the parameterization of AIOMFAC to include the functional groups carboxyl, hydroxyl, ketone, aldehyde, ether, ester, alkenyl, alkyl, aromatic carbon-alc., and aromatic hydrocarbon. Thermodn. equilibrium data of organic-inorganic systems from the literature are critically assessed and complemented with new measurements to establish a comprehensive database. The database is used to determine simultaneously the AIOMFAC parameters describing interactions of organic functional groups with the ions H⁺, Li⁺, Na⁺, K⁺, NH⁺₄, Mg²⁺, Ca²⁺, Cl^–, Br^–, NO^–₃, HSO^–₄, and SO^2-₄. Detailed descriptions of different types of thermodn. data, such as vapor-liquid, solid-liquid, and liquid-liquid equilibrium, and their use for the model parameterization are provided. Issues regarding deficiencies of the database, types and uncertainties of exptl. data, and limitations of the model, are discussed. The challenging parameter optimization problem is solved with a novel combination of powerful global minimization algorithms. A number of exemplary calculations for systems containing atmospherically relevant aerosol components are shown. Amongst others, we discuss aqueous mixtures of ammonium sulfate with dicarboxylic acids and with levoglucosan. Overall, the new parameterization of AIOMFAC agrees well with a large number of exptl. datasets. However, due to various reasons, for certain mixtures important deviations can occur. The new parameterization makes AIOMFAC a versatile thermodn. tool. It enables the calculation of activity coefficients of thousands of different organic compounds in organic-inorganic mixtures of numerous components. Models based on AIOMFAC can be used to compute deliquescence relative humidities, liquid-liquid phase separations, and gas-particle partitioning of multicomponent mixtures of relevance for atm. chem. or in other scientific fields.

Atmospheric Chemistry and Physics published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C3H8N2S, Synthetic Route of 1589-47-5.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Chen, Xi published the artcileTuning Zr₁₂O₂₂ Node Defects as Catalytic Sites in the Metal-Organic Framework hcp UiO-66, COA of Formula: C4H10O2, the publication is ACS Catalysis (2020), 10(5), 2906-2914, database is CAplus.

Defects in metal-organic frameworks (MOFs) play important roles in MOF reactivity and catalysis. Now, we report evidence of the reactivity and the quant. characterization of the missing linker defects on the Zr₁₂O₂₂ nodes in the MOF hcp UiO-66 (these are paired Zr₆O₈ nodes bridged by OH groups) and those on the Zr₆O₈ nodes of the MOF UiO-66. The defect sites catalyze the ring-opening reactions of epoxides with alcs., and new sites formed by removal of bridging OH groups on the Zr₁₂O₂₂ nodes also participate in the catalysis. The hcp UiO-66 was synthesized from UiO-66 and from mol. precursors, and, under various synthesis conditions, the nodes incorporated acetate ligands, where linkers were missing, and the number of these ligands was controlled by the synthesis conditions. These ligands are inhibitors of the catalytic reactions, and their removal by reaction with, for example, methanol (to form, for example, Me acetate) preceded catalysis on the defect sites. The former MOF incorporated more defect sites than the latter, correspondingly being a more active catalyst. The defect sites on the Zr₁₂O₂₂ nodes are 2-6 times more active per site than those on the isolated Zr₆O₈ nodes, with the node-bridging OH groups increasing the catalytic activity of the neighboring node defect sites because new sites are formed by their removal. The results help point the way to the design and control of catalytic sites on metal oxide-like MOF nodes by tuning of the number and reactivity of the defect sites.

ACS Catalysis published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C4H10O2, COA of Formula: C4H10O2.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Timofeeva, Maria N. published the artcileZeolitic Imidazolate Frameworks ZIF-8 and MAF-5 as Highly Efficient Heterogeneous Catalysts for Synthesis of 1-Methoxy-2-propanol from Methanol and Propylene Oxide, Application In Synthesis of 1589-47-5, the publication is Industrial & Engineering Chemistry Research (2019), 58(25), 10750-10758, database is CAplus.

Herein, we demonstrated that zinc zeolitic imidazolate frameworks (ZIFs) based on 2-methylimidazole (ZIF-8) and 2-ethylimidazole (MAF-5 or ZIF-14) linkers could be used as effective heterogeneous catalysts for catalytic synthesis of 1-methoxy-2-propanol (1-MP) that is widely used in industry due to its negligible toxicity as an ecofriendly solvent and as an intermediate for the synthesis of different chems. Application of these materials decreased the reaction temperature to 110 °C. 1-MP was found to be the major product, with 92.1-93.8% selectivity. The activity of MAF-5 was higher than that of ZIF-8. This difference can be explained by the high basicity of MAF-5. MAF-5 and ZIF-8 materials showed good reusability for 5 cycles in catalysis, which indicates their high potential for catalytic applications. Compared with reported catalysts, the studied ZIFs, especially MAF-5, showed not only the highest conversion of PO but also the highest selectivity for 1-MP under similar reaction conditions.

Industrial & Engineering Chemistry Research published new progress about 1589-47-5. 1589-47-5 belongs to ethers-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2-Methoxypropan-1-ol, and the molecular formula is C8H8O3, Application In Synthesis of 1589-47-5.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem