Tag: 200-300

On April 16, 2022, Li, Ke; Nam, Jin Hyun; Kang, Seulgi; Liu, Yuli; Lee, Jeongmi published an article.Recommanded Product: 118-55-8 The title of the article was Carvone and its eutectic mixtures as novel, biodegradable, and tunable solvents to extract hydrophobic compounds in substitution for volatile toxic solvents. And the article contained the following:

Finding safe solvents with low viscosities has been in great demand in extraction processes. Herein, R-(-)-carvone, a natural monoterpenoid rich in spearmint, was mixed with naturally occurring fatty acids and terpenes. Most eutectic mixtures presented a wide liquid window in the solid-liquid equilibrium phase diagrams. Carvone mixtures at the ideal eutectic points were characterized for physicochem. properties. Despite varying properties, all the tested solvents were immiscible with water and displayed low viscosity with reasonable biodegradability. Sigma potentials of the mixtures were applied to machine learning algorithms, suggesting carvone mixtures as substitutes for polar protic and dipolar aprotic solvents. Carvone mixtures could be successfully applied to liquid-liquid extraction of a red algae called laver, which is rich in natural hydrophobic and hydrophilic pigments of high value. This study proposes carvone as a new bio-based source of hydrophobic solvents and the eutectic mixtures as biodegradable and tunable solvents to extract hydrophobic compounds The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Recommanded Product: 118-55-8

The Article related to carvone heptanoic octanoic acid carotenoid machine learning, bio-based solvent, cosmo-rs, carvone, eutectic mixture, extraction, machine learning, Food and Feed Chemistry: Analysis and other aspects.Recommanded Product: 118-55-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On December 28, 2011, Gao, Lizhu; Hwang, Geum-Sook; Ryu, Do Hyun published an article.Reference of tert-Butyl 2-(4-nitrophenyl)acetate The title of the article was Oxazaborolidinium Ion-Catalyzed Cyclopropanation of α-Substituted Acroleins: Enantioselective Synthesis of Cyclopropanes Bearing Two Chiral Quaternary Centers. And the article contained the following:

A catalytic synthetic route to highly functionalized chiral cyclopropane derivatives was developed by Michael-initiated cyclopropanation of α-substituted acroleins with aryl- and alkyl diazoacetates. In the presence of chiral (S)-oxazaborolidinium cation I as a catalyst, the reaction proceeded in high yield (up to 93%) with high to excellent diastereoselectivity (up to 98% de) and enantioselectivity (up to 95% ee). The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Reference of tert-Butyl 2-(4-nitrophenyl)acetate

The Article related to alpha substituted acrolein diazoacetate chiral oxazaborolidinium catalyst cyclopropanation, cyclopropane stereoselective preparation, Alicyclic Compounds: Cyclopropanes and other aspects.Reference of tert-Butyl 2-(4-nitrophenyl)acetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Raj, Danuta published an article in 2022, the title of the article was Eutectic Thin-Layer Chromatography as a New Possibility for Quantification of Plant Extracts-A Case Study.Synthetic Route of 118-55-8 And the article contains the following content:

Deep eutectic solvents (DES), compared to classic ones, have interesting properties, such as the ability to solubilize compounds differing in polarity or increased dissolution of selected chem. compounds They also offer specific interactions between the mobile and stationary phases. Those features make them promising solvents in chromatog. techniques, including the use in the separation of complicated samples. The first quant. anal. with eutectic thin-layer chromatog. (TLC) is presented in the paper. As a case study, five alkaloids from Chelidonium maius were selected as target compounds A wide range of terpene-based DESs was investigated to develop the chromatog. system, both pure and after dilution Moreover, a novel approach was employed to adjust polarity, involving mixing DESs differing in chromatog. properties. This procedure has proved to be effective. The best results were obtained with a 2:1 (wt/wt) mixture of DESs: camphor + phenol and menthol + limonene, with a 20% addition of methanol. The chromatog. system was validated and checked on the real sample, which made it the first applicable and operational quant. eutectic TLC system. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Synthetic Route of 118-55-8

The Article related to eutectic thin layer chromatog plant extract quantification, chelidonium, des, nades, alkaloids, densitometry, eutectic tlc, Biochemical Methods: Chromatographic and other aspects.Synthetic Route of 118-55-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Woods, Hannah; Boddorff, Andrew; Ewaldz, Elena; Adams, Zachary; Ketcham, Mitchell; Jang, Dong June; Sinner, Elizabeth; Thadhani, Naresh; Brettmann, Blair published an article in 2020, the title of the article was Rheological Considerations for Binder Development in Direct Ink Writing of Energetic Materials.Synthetic Route of 2358-84-1 And the article contains the following content:

A review. Additive manufacturing is a promising approach to prepare highly specifically defined materials with unique dimensions, gradients in material attributes and on-demand properties. For energetic materials applications, it is particularly exciting for its potential to create lattice and cellular structures and gradient solids to focus or dissipate energy. However, there are significant challenges to overcome, particularly in obtaining the very high particle content (>80 vol % particles), while still being manufacturable. This work focuses on the polymer binder used in an energetic materials system and aims to understand how its characteristics affect the viscosity and printability of the suspension. Two different types of polymer binders are examined: (a) high mol. weight polymer in a solvent and (b) polymerizable smaller mols. that were cured via UV light. We show that the suspension viscosity is primarily controlled by the particle volume fraction for the UV curable binder, while both the particle volume fraction and polymer mol. weight influence the response in the case of the polymer/solvent binder. Both binder types can be tuned to provide printable suspensions that result in lines of consistent width and 3D disk-shaped objects, indicating that both paths are good potential directions for future formulations for polymer bonded explosives prepared via additive manufacturing The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Synthetic Route of 2358-84-1

The Article related to polymer binder suspension viscosity printability explosive formulation review, Propellants and Explosives: Reviews and other aspects.Synthetic Route of 2358-84-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Changjiu; Krishnan, Rithin P.; Wong, Kaikin; Yu, Dehong; Juranyi, Fanni; Chathoth, Suresh M. published an article in 2018, the title of the article was Microscopic origin of the logarithmic relaxation in molecular glass-forming liquids.Computed Properties of 118-55-8 And the article contains the following content:

A review. Logarithmic relaxation is a unique relaxation process exhibited by a few mol. liquids and biomols. However, the microscopic origin of logarithmic relaxation is still unclear. To understand the origin of this process, we studied two liquids that exhibit logarithmic relaxation in a dissolved state using quasielastic neutron scattering (QENS) and depolarized dynamic light scattering (DDLS). Although the intermol. potential of the liquids is drastically different in the dissolved state from the bulk liquids, we observed that the logarithmic relaxation still persists. Our results indicate that the intermol. potential does not play a role in determining the logarithmic relaxation process. The coupling of rotational and translational relaxation processes could be the origin of the logarithmic relaxation process exhibited by the mol. liquids The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Computed Properties of 118-55-8

The Article related to mol glass forming liquid logarithmic relaxation qens ddls review, General Physical Chemistry: Reviews and other aspects.Computed Properties of 118-55-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On September 30, 2020, Abdi, Khosrou; Ezoddin, Maryam; Pirooznia, Nazanin published an article.Application of 118-55-8 The title of the article was Temperature-controlled liquid-liquid microextraction using a biocompatible hydrophobic deep eutectic solvent for microextraction of palladium from catalytic converter and road dust samples prior to ETAAS determination. And the article contained the following:

A simple method based on temperature-controlled liquid-liquid microextraction (TC-LLME) using a novel hydrophobic deep eutectic solvent (DES) was developed for preconcentration of palladium. Deep eutectic solvent based on Ph salicylate (salol) and DL-menthol (1:1) was used as the extraction solvent. The control of temperature enhanced the dispersion of deep eutectic solvent and a homogeneous solution was made. Upon cooling the solution in an ice bath, a cloudy solution was formed. Afterwards, the mixture was centrifuged and the sediment phase was analyzed by Electrothermal Atomic Absorption Spectroscopy (ETAAS). To improve the extraction efficiency, the main parameters were optimized. Under the optimized extraction conditions, the limit of detection (LOD) and limit of quantification (LOQ) were 0.03μg L-1 and 0.10μg L-1 resp. Preconcentration factor was obtained 191. The precision, expressed as the relative standard deviation (RSD, n = 10), found to be 4.6%. Finally, the method was an effective procedure for the determination of palladium in water, catalytic converter and road dust samples with acceptable extraction recoveries of 95.1% to 100.4%. The obtained results confirmed the ability of the developed method in the different samples. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Application of 118-55-8

The Article related to palladium catalytic converter biocompatible hydrophobic solvent road dust microextraction, Inorganic Analytical Chemistry: Reagents and other aspects.Application of 118-55-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On January 12, 2005, Chen, Li; Wang, Qingmin; Huang, Runqiu; Mao, Chunhui; Shang, Jian; Bi, Fuchun published an article.Product Details of 141940-37-6 The title of the article was Synthesis and insecticidal evaluation of propesticides of benzoylphenylureas. And the article contained the following:

Two series of benzoylphenylurea derivatives were synthesized as candidate propesticides by a nucleophilic addition reaction between 2,6-difluronbenzoyl isocyanate and N-substituted anilines. The new compounds were identified by 1H NMR spectroscopy, electron ionization-mass spectrometry, and elemental analyses. The bioactivities of the new compounds were evaluated. All of the propesticides were soluble in most organic solvents, and their hydrophobicities were improved. The result of the bioactivities of the new compounds against Oriental armyworm showed that some of the new compounds are active as compared to diflubenzuron and penfluron. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Product Details of 141940-37-6

The Article related to benzoylphenylurea derivative preparation insecticide, Agrochemical Bioregulators: Invertebrate and other aspects.Product Details of 141940-37-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 31, 2022, Monasson, Olivier; Malinowski, Maciej; Lubin-Germain, Nadege; Ferry, Angelique published an article.Name: (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate The title of the article was Hirao Cross-Coupling Reaction as an Efficient Tool to Build Non-natural C2-Phosphonylated Sugars. And the article contained the following:

A range of C2-phosphonylated sugars have been accessed through a palladium-catalyzed Hirao cross-coupling on 2-iodoglycals using trialkylphosphites as phosphorylating reagents. The developed conditions led to the creation of an unnatural C-P bond on sugars and proved to be compatible with diversely protected glycals (acetyl-, benzyl-, PMB-protected) as well as with unprotected substrates. Several monosaccharides and one disaccharide have been synthesized by applying this methodol. Deprotection conditions are also described. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).Name: (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate

The Article related to phosphorylation alkylphosphite glycal disaccharide monosaccharide preparation, monosaccharide disaccharide synthesis palladium catalyzed hirao cross coupling iodoglycal, Carbohydrates: Monosaccharides, Glycals and other aspects.Name: (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Cheng, Zhangrui; Brown, Laura E.; Wathes, D. Claire published an article in 2020, the title of the article was Bovine viral diarrhoea virus infection disrupts uterine interferon stimulated gene regulatory pathways during pregnancy recognition in cows.Name: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate) And the article contains the following content:

In cattle, conceptus-derived interferon tau (IFNT) is the pregnancy recognition (PR) signal. Our previous studies showed that non-cytopathic bovine viral diarrhoea virus (ncpBVDV) infection inhibited IFNT-induced interferon stimulated gene (ISG) expression, potentially causing early embryonic death. This study investigated the effect of bovine viral diarrhoea virus (BVDV) infection on upstream regulatory pathways of ISG production using an established PR model. Uterine endometrial cells from 10 apparently healthy and BVDV free cows were cultured and treated with 0 or 100 ng/mL IFNT for 24 h in the presence or absence of ncpBVDV infection. Microarray and pathway anal. were used to determine the IFNT-induced upstream regulators. Expression of the genes associated with the identified pathways were quantified with qPCR. IFNT challenge activated the signalling pathways associated with IFN receptors, JAK1/TYK2, IRFs and STATs and ncpBVDV infection inhibited the activation of IFNT on this pathway. Inhibition of this upstream signalling pathway may thus reduce ISG production to disrupt maternal PR. In addition, the reduction of uterine immunity by ncpBVDV infection may predispose the animals to uterine infection, which in turn impairs their reproductive performance. This provides a mechanism of how BVDV infection leads to early pregnancy failure in cows. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Name: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

The Article related to viral diarrhea virus infection interferon gene regulation pregnancy, bvdv, cows, endometrium, interferon stimulated gene regulators, pregnancy recognition, Biochemical Genetics: Genomic Processes and other aspects.Name: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On October 25, 2020, St-Gelais, Jacob; Cote, Emilie; Laine, Danny; Johnson, Paul A.; Giguere, Denis published an article.Product Details of 2873-29-2 The title of the article was Addressing the Structural Complexity of Fluorinated Glucose Analogues: Insight into Lipophilicities and Solvation Effects. And the article contained the following:

In this work, we synthesized all mono-, di-, and trifluorinated glucopyranose analogs at positions C-2, C-3, C-4, and C-6. This systematic investigation allowed us to perform direct comparison of 19F resonances of fluorinated glucose analogs and also to determine their lipophilicities. Compounds with a fluorine atom at C-6 are usually the most hydrophilic, whereas those with vicinal polyfluorinated motifs are the most lipophilic. Finally, the solvation energies of fluorinated glucose analogs were assessed for the first time by using d. functional theory. This method allowed the log P prediction of fluoroglucose analogs, which was comparable to the C log P values obtained from various web-based programs. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).Product Details of 2873-29-2

The Article related to polyfluoro glucose preparation lipophilicity solvation effect, density functional theory, fluorine, glucopyranoses, lipophilicity, solvation energies, Carbohydrates: Monosaccharides, Glycals and other aspects.Product Details of 2873-29-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics