Tag: 100-200

On May 31, 2002, Raskulova, T. V.; Volkova, L. I.; Danilevich, Yu. S.; Shainyan, B. A.; Khaliullin, A. K. published an article.HPLC of Formula: 929-37-3 The title of the article was Formation of Diol Divinyl Diethers in the Synthesis of 1,2-Epoxy-3-(vinyloxyalkoxy)propanes. And the article contained the following:

The reaction of vinyl oxyalkoxy ethers in presence of epichlorohydrin yielded 1,2-epoxy-3-(vinyloxyalkoxy)propanes CH2=CH-O-X-CH2-CH(-O-)-CH2 (X = (CH2CH2O)n, n = 2, 3, 4), usable as monomers. No 1,3-bis(vinyloxyalkoxy)glycerol ethers were found. In the absence of epichlorohydrin divinyl ethers CH2=CH-O-X-CH=CH2 (X = (CH2CH2O)n, n = 2, 5, 4) were prepared 11,12-Epoxy-3,6,9-trioxa-1-dodecene, 14,15-epoxy-3,6,9,12-tetraoxa-1-pentadecene, 17,18-epoxy-3,6,9,12,15-pentaoxa-1-octadecene, bis(2-vinyloxyethyl) ether, 3,6,9,12,15,18-hexaoxa-1,19-eicosadiene, and 3,6,9,12,15-pentaoxa-1,16-heptadecadiene were prepared and characterized. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).HPLC of Formula: 929-37-3

The Article related to vinyloxyalkoxypropane epoxide monomer preparation, oligoether vinyl ether epichlorohydrin substitution, divinyl ether oligoether containing preparation, Chemistry of Synthetic High Polymers: Monomers and Reagents Used In Polymerization and other aspects.HPLC of Formula: 929-37-3

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On July 31, 2021, Trusiano, Giuseppe; Vitale, Alessandra; Pulfer, Jason; Newton, Josiah; Joly-Duhamel, Christine; Friesen, Chadron M.; Bongiovanni, Roberta published an article.Product Details of 929-37-3 The title of the article was Novel perfluoropolyalkylethers monomers: synthesis and photo-induced cationic polymerization. And the article contained the following:

Abstract: Several difunctional oligomers were synthesized by functionalizing perfluoropolyalkylether (PFPAE) chains with different vinyl ethers and epoxides end-groups. Due to their innate synthetic challenges and demanding purification protocols, the PFPAE derivatives were obtained in low yield and with an average functionality lower than 2. However, the functionalized PFPAE oligomers were successful in being used in photo-induced cationic polymerization processes, obtaining transparent and soft films. The influences of the fluorinated chains, and various end-groups on the photopolymerization process were investigated, as well their chem. stability, thermal degradation, and surface properties. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Product Details of 929-37-3

The Article related to perfluoropolyalkylether epoxy photo induced cationic polymerization, fluoropolymers, functionalized perfluoropolyalkylethers, photopolymerization, Chemistry of Synthetic High Polymers: Monomers and Reagents Used In Polymerization and other aspects.Product Details of 929-37-3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On February 29, 2020, Shakirov, I. I.; Boronoev, M. P.; Sinikova, N. A.; Karakhanov, E. A.; Maksimov, A. L. published an article.Electric Literature of 91-16-7 The title of the article was Selective Hydrogenation of Phenylacetylene on a Pd-Containing Catalyst Based on a Polymer Layered Substrate. And the article contained the following:

A Pd-containing catalyst based on a layered substrate obtained by the polymerization of 2,3,6,7,10,11-hexahydroxytriphenylene and terephthalic aldehyde was developed and studied. The process of liquid-phase hydrogenation of phenylacetylene was studied on the obtained catalyst. It was found that high selectivity for styrene (97%) with complete phenylacetylene conversion is achieved at a hydrogen pressure of 0.1 MPa and a temperature of 40°C. It has been shown that the catalyst exhibits high stability-maintaining conversion and selectivity for 6 cycles. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Electric Literature of 91-16-7

The Article related to hexahydroxytriphenylene terephthalic aldehyde copolymer impregnated palladium catalyst phenylacetylene hydrogenation, Chemistry of Synthetic High Polymers: Monomers and Reagents Used In Polymerization and other aspects.Electric Literature of 91-16-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Espeel, Pieter; Celasun, Sensu; Omurtag, Pinar Sinem; Martens, Steven; Du Prez, Filip E. published an article in 2017, the title of the article was Responsive Thiolactone-Derived N-Substituted Poly(Urethane-Amide)s.Safety of 2-(2-(Vinyloxy)ethoxy)ethanol And the article contains the following content:

AB’ type monomers containing a thiolactone unit and vinyl ether moiety have been prepared with high yields. Aminolysis of the thiolactone moiety generates the corresponding thiol in situ, and upon UV-irradiation, radical polyaddition occurs in the same medium, yielding linear poly(amide-urethane)s with different side chain residues and (Poly(Ethylene Oxide)) PEO-like backbone. Moreover, these unique polymers feature lower critical solution temperature behavior in water. Systematic modification of the responsive polymers reveals the influence of the variation of the side chains and the backbone structure on the corresponding solubility properties. In selected cases, multiresponsive polymers have been developed, which also respond to pH and metal concentration The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Safety of 2-(2-(Vinyloxy)ethoxy)ethanol

The Article related to responsive thiolactone polyurethaneamide, aminolysis, polyaddition, responsive polymers, thiol-ene, thiolactone, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Safety of 2-(2-(Vinyloxy)ethoxy)ethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On May 31, 2018, Ogruc Ildiz, G.; Konarska, J.; Fausto, R. published an article.SDS of cas: 321-28-8 The title of the article was Structural transformations of 3-fluoro and 3-fluoro-4-methoxy benzaldehydes under cryogenic conditions: A computational and low temperature infrared spectroscopy investigation. And the article contained the following:

Structural transformations of 3-fluorobenzaldehyde (C7H5FO; 3FBA) and 3-fluoro-4-methoxybenzaldehyde (C8H7FO2; 3F4MBA), taking place in different solid phase environments and at low temperature, were investigated by IR spectroscopy, complemented by quantum chem. calculations undertaken at the DFT(B3LYP)/6-311++G(d,p) level of approximation The studied compounds were isolated from gas phase into cryogenic inert matrixes (Ar, Xe), allowing to characterize their equilibrium conformational composition in gas-phase at room temperature In both cases, two conformers differing by the orientation of the aldehyde moiety (with the carbonyl aldehyde bond cis or trans in relation to the aromatic ring fluorine substituent) were found to coexist, with the cis conformer being slightly more populated than the trans form. In situ narrowband UV irradiation of the as-deposited matrixes led either to preferential isomerization of the cis conformer into the trans form or decarbonylation of both conformers, depending on the used excitation wavelength. Deposition of the vapors of 3F4MBA only, onto the cold (15 K) substrate, produced an amorphous solid containing also both the cis and trans conformers of the compound Subsequent heating of the amorphous phase up to 268 K led to crystallization of the compound, which is accompanied by conformational selection, the cis form being the single species present in the crystal. The exptl. observed transformations of the studied compounds, together with the structural and vibrational results obtained from the performed quantum chem. calculations, allowed a detailed structural and vibrational characterization of the individual conformers. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).SDS of cas: 321-28-8

The Article related to fluorobenzaldehyde photodecarbonylation conformational isomerization ir spectra, Physical Organic Chemistry: Rearrangements, Including Isomerization and Tautomerization and other aspects.SDS of cas: 321-28-8

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On February 27, 2013, Briones, Rodrigo; Serrano, Luis; Sequeiros, Ane; Labidi, Jalel published an article.SDS of cas: 929-37-3 The title of the article was Influence of Microwave Heating on Chemical Properties of Liquefied Lignocellulosic Residues. And the article contained the following:

The chem. composition of liquid products obtained from liquefaction of several agro-industrial wastes was analyzed and the effects of microwave treatments were investigated, evaluating changes in chem. composition, structure, and phys. properties, looking forward to exploring new utilization routes or processing paths for these liquid products. Gas chromatog.-mass spectrometry (GC-MS) showed that the chem. components of liquefied products can be divided into several groups: furans, alcs., and esters and acid derivatives The microwave evaluation showed that irradiation at constant power levels affects the compositions of liquefied products. Fourier transform IR (FT-IR) spectroscopic anal. showed increases in the absorption bands of carbonyl and CH groups, which suggests that microwaves induced more intensive oxidation of hydroxyl groups into carbonyl groups. Elemental anal. indicated higher carbon and lower oxygen contents and higher heat heating value (20 MJ/kg) in treated products with respect to untreated samples. The use of liquefied products as a new energy source has advantages such as their liquid state, convenient energy value, and renewability. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).SDS of cas: 929-37-3

The Article related to liquefied agricultural waste microwave heating chem composition, Cellulose, Lignin, Paper, and Other Wood Products: Wood and Other Cellulosic Materials and other aspects.SDS of cas: 929-37-3

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kazachenko, Aleksandr S.; Miroshnikova, Angelina V.; Tarabanko, Valery E.; Skripnikov, Andrey M.; Malyar, Yuriy N.; Borovkova, Valentina S.; Sychev, Valentin V.; Taran, Oxana P. published an article in 2021, the title of the article was Thermal Conversion of Flax Shives in Sub- and Supercritical Ethanol in the Presence of Ru/C Catalyst.Name: 1,2-Dimethoxybenzene And the article contains the following content:

Thermal conversion of flax shives was studied in sub- and supercritical ethanol medium at 225 and 250°C in the presence of the bifunctional catalyst 3% Ru/C. The use of 3% Ru/C catalyst in the process of thermal conversion of flax shives in supercritical ethanol was found to increase the conversion of the shives by 27% and the yield of liquid products by 10%. The use of 3% Ru/C catalyst in sub- and supercritical ethanol led to the destruction of both lignin and cellulose. The degree of delignification in the non-catalytic thermal conversion increased upon transition from subcritical (225°C) to supercritical (250°C) conditions. Main monomeric products of the thermal conversion process were guaiacylpropene or guaiacylpropane depending on the process temperature In the presence of Ru/C catalyst, the mol. weight distribution was shifted towards an increase in the content of monomeric compounds in the liquid products. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Name: 1,2-Dimethoxybenzene

The Article related to flax shive thermal conversion ruthenium carbon catalyst, Cellulose, Lignin, Paper, and Other Wood Products: Wood and Other Cellulosic Materials and other aspects.Name: 1,2-Dimethoxybenzene

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Ether – Wikipedia,
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On February 8, 2022, Zhang, Jinhong; Sekyere, Daniel T.; Niwamanya, Noah; Huang, Yansheng; Barigye, Andrew; Tian, Yuanyu published an article.COA of Formula: C8H10O2 The title of the article was Study on the Staged and Direct Fast Pyrolysis Behavior of Waste Pine Sawdust Using High Heating Rate TG-FTIR and Py-GC/MS. And the article contained the following:

To understand the fast pyrolysis kinetics and product evolution of waste pine sawdust, high heating rate thermogravimetry-Fourier transform IR (TG-FTIR) was used to obtain the kinetic parameters and the chem. groups formed during the pyrolysis process, while pyrolysis-gas chromatog./mass spectrometry (Py-GC/MS) was used to investigate the detailed compositions of products under the staged (seven stages from 300 to 600°C) and direct fast pyrolysis process. Spectral bands were identified for acids, alcs., aldehydes, aromatics, esters, ethers, hydrocarbons, ketones, phenols, and sugars. Research found that the apparent activation energy for fast pyrolysis is much higher than that of slow pyrolysis. The evolution of CO2 is the major deoxygenation route. Cracking mainly occurred at the 450°C stage with phenols, ketones, aldehydes, and sugars as the main products. The product distributions for different stages are significantly different; the selectivity of aldehydes decreased, while phenols showed an upward trend with an increase in pyrolysis temperature Ketones and sugars reached their peak values at 450°C. The changes in the mol. composition of each stage helped to understand the pyrolysis process. Compared with the staged pyrolysis, the direct pyrolysis process had higher selectivity of acids, aldehydes, esters, and sugars and lower selectivity of phenols, ketones, and alcs. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).COA of Formula: C8H10O2

The Article related to staged pyrolysis behavior waste pine sawdust heating, Cellulose, Lignin, Paper, and Other Wood Products: Wood and Other Cellulosic Materials and other aspects.COA of Formula: C8H10O2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On March 30, 2022, Wang, Chao; Li, Juan; Zhang, Ya; He, Zhongrong; Zhang, Yin; Zhang, Xingmin; Guo, Zhuoyue; Huang, Jianan; Liu, Zhonghua published an article.Quality Control of 1,2-Dimethoxybenzene The title of the article was Effects of electrostatic spray drying on sensory qualities, aroma profile and microstructural features of instant Pu-erh tea. And the article contained the following:

The sensory qualities, aroma profile, and microstructural features of instant Pu-erh teas (IPTs) produced by electrostatic spray drying (ESD) were evaluated by sensory and instrumental analyses and compared with those produced by other drying methods (freeze-drying [FD], vacuum drying [VD], and conventional spray drying [CSD]). The sensory qualities of ESDIPT were similar to those of FDIPT, and better than those of VDIPT and CSDIPT. Eighty-eight volatiles were detected in all IPTs, and 45 odor-active compounds were captured. Most of their OAVs were higher in ESDIPT than in VDIPT and CSDIPT but were lower than those in FDIPT. Dihydro-β-ionone had the highest OAV. Aroma recombination experiments were performed to verify the identification results. ESDIPT was present in the shape of microspheres with many regular concave surfaces, which was different from those treated by other drying methods. In terms of sensory quality and productivity, ESD would be a potential method for IPT production The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Quality Control of 1,2-Dimethoxybenzene

The Article related to pu erh tea volatile compound electrostatic spray drying, electrostatic spray drying, instant pu-erh tea, microstructural features, odor-active compounds, sensory quality, Food and Feed Chemistry: Physical, Organic, and Inorganic Chemistry and Model Systems and other aspects.Quality Control of 1,2-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On April 30, 2020, Kikot, Leonid S.; Kulygina, Catherine Yu.; Lyapunov, Alexander Yu.; Shishkina, Svitlana V.; Vaksler, Yevhenii A.; Bogashchenko, Tatiana Yu.; Kirichenko, Tatiana I. published an article.Quality Control of 1,2-Dimethoxybenzene The title of the article was Synthesis and complexation of molecular clips based on diphenylglycoluril and halogenated dibenzocrown ethers with paraquat. And the article contained the following:

Two new dibenzocrown ethers and mol. clips were synthesized. The influence of substituents on the terminal aromatic fragments of the clips on the paraquat-complex stability constants were studied. The “pseudocryptand” type complex of fluorine-substituted clip with paraquat hexafluorophosphate was found in the crystalline state. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Quality Control of 1,2-Dimethoxybenzene

The Article related to halo substituted pseudocryptand preparation dimethoxybenzene electrostatic potential, Heterocyclic Compounds (More Than One Hetero Atom): Eight- and Higher-Membered Rings and other aspects.Quality Control of 1,2-Dimethoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem