Tag: 0-100

The author of 《General Synthetic Approach for the Laurencia Family of Natural Products Empowered by a Potentially Biomimetic Ring Expansion》 were Zhang, Yu-An; Yaw, Natalie; Snyder, Scott A.. And the article was published in Journal of the American Chemical Society in 2019. Application of 623-47-2 The author mentioned the following in the article:

The Laurencia family of C15-acetogenins is Nature’s largest collection of halogenated natural products, with many of its members possessing a brominated 8-membered cyclic ether among other distinct structural elements. Herein, we demonstrate that a bromonium-induced ring expansion, starting from a common tetrahydrofuran-containing bicyclic intermediate and using the highly reactive bromenium source BDSB (Et2SBr•SbCl5Br), can lead to concise asym. total syntheses of microcladallenes A and B, desepilaurallene, laurallene, and prelaureatin. Key advances in this work include: (1) the first demonstration that the core bromonium-induced cyclization/ring-expansion can be initiated using an enyne with an internal ether oxygen nucleophile, (2) that reasonable levels of stereocontrol in such processes can be achieved both with and without appended ring systems and stereogenic centers, (3) that several other unique chemoselective transformations essential to building their polyfunctional cores can be achieved, and (4) that a single, common intermediate can lead to five different members of the class encompassing two distinct 8-membered cyclic ether ring collections. Considering this work along with past efforts leading to two other natural products in the collection, we believe the breadth of structures prepared to date affords strong evidence for Nature’s potential use of similar processes in fashioning these unique mols. The experimental process involved the reaction of Ethyl propiolate(cas: 623-47-2Application of 623-47-2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Application of 623-47-2

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

In 2019,Journal of the Electrochemical Society included an article by Gauthier, Roby; Hall, David S.; Taskovic, T.; Dahn, J. R.. Product Details of 872-36-6. The article was titled 《A joint DFT and experimental study of an imidazolidinone additive in lithium-ion cells》. The information in the text is summarized as follows:

Electrolyte additives are a practical route to improving the lifetime and performance of lithium-ion cells. It is not well understood what makes a good additive; thus, the discovery of new additives poses a significant challenge. Computational methods have the potential to streamline the search for new additives, but it is important to compare predicted additive behavior with exptl. measured results. A new electrolyte additive, 1,3-dimethyl-2-imidazolidinone (DMI), has been evaluated in LiNi1-x-yMnxCoyO2 (NMC)/graphite pouch cells as a single additive and with the co-additive vinylene carbonate (VC). This work compares the d. functional theory (DFT)-predicted behavior of DMI with exptl. results, including differential capacity anal. (dQ/dV), electrochem. impedance spectroscopy (EIS), high-temperature storage, gas chromatog.-mass spectrometry (GC-MS) and long-term cycling tests. The DFT-calculated reduction potential of DMI is -0.63 V vs Li/Li+, consistent with the exptl. observation that it reduces at a lower potential than ethylene carbonate (EC), ∼0.80 V vs Li/Li+. Although DMI turns out not to be a competitively useful additive, the good match between many aspects of the exptl. results and theor. predictions is a good indication that it is possible to understand aspects of the behavior of additives. This can guide future researchers. In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6Product Details of 872-36-6) was used in this study.

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Product Details of 872-36-6

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

In 2019,Journal of the Electrochemical Society included an article by Hall, David S.; Li, Jing; Lin, Katherine; Stakheiko, Nikolai; Baltazar, Jazmin; Dahn, J. R.. Recommanded Product: Vinylene carbonate. The article was titled 《Two additives: effects of glutaric and citraconic anhydrides on Lithium-ion cell performance》. The information in the text is summarized as follows:

The use of electrolyte additives is an important method to improve lithium-ion cell lifetime and performance without significantly affecting costs. This work evaluates two organic anhydrides, glutaric anhydride (GA) and citraconic anhydride (CA), as additives in Li(Ni0.6Mn0.2Co0.2)O2 (NMC622)/graphite and Li(Ni0.5Mn0.3Co0.2)O2 (NMC532)/graphite pouch cells, using ultrahigh precision coulometry and high-temperature storage. The additives were tested singly and in binary blends. GA-based additive blends give high coulombic efficiencies (CEs) and good storage performance. However, GA leads to substantial impedance during formation. Most notably, GA is extremely effective at suppressing gas during cell formation and storage. Whereas CA-containing blends yield good CEs, they show rapid voltage drop during storage. Both additives may provide specific benefits for target applications. Long-term cycling data indicates that GA is a neg. electrode SEI-forming additive that is useful for capacity retention and limiting cell impedance growth when used as a binary blend with vinylene carbonate or lithium difluorophosphate. These results are also intended to facilitate comparison between chem. related additives in order to better understand the underlying chem. behind their function in lithium-ion cells. In the part of experimental materials, we found many familiar compounds, such as Vinylene carbonate(cas: 872-36-6Recommanded Product: Vinylene carbonate)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Recommanded Product: Vinylene carbonate

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

In 2022,Nural, Yahya; Ozdemir, Sadin; Yalcin, Mustafa Serkan; Demir, Bunyamin; Atabey, Hasan; Seferoglu, Zeynel; Ece, Abdulilah published an article in Bioorganic & Medicinal Chemistry Letters. The title of the article was 《New bis- and tetrakis-1,2,3-triazole derivatives: synthesis, DNA cleavage, molecular docking, antimicrobial, antioxidant activity and acid dissociation constants》.Computed Properties of C5H6O2 The author mentioned the following in the article:

Series of bis- and tetrakis-1,2,3-triazole derivatives I (R = BrCH2CH2, 2-pentyl, cyclopropyl, cyclohexylmethyl, Ph, etc.) and II were synthesized using copper-catalyzed azide-alkyne cycloaddition click chem. in 73-95% yields. The bis- and tetrakis-1,2,3-triazoles exhibited significant DNA cleavage activity while the tetrakis-1,2,3-triazole analog II (R = Ph) completely degraded the plasmid DNA. Mol. docking simulations suggest that the compound II (R = Ph) acts as minor groove binder of DNA by binding through several noncovalent interactions with base pairs. All bis- and tetrakis-1,2,3-triazole derivatives were screened for antibacterial activity against E. coli, B. cereus, S. aureus, P. aeruginosa, E. hirae, L. pneumophila subsp. pneumophila strains and antifungal activity against microfungus C. albicans and C. tropicalis strains. The compound I (R = cyclohexylmethyl) exhibited the best antibacterial activity among bis-1,2,3-triazoles against E. coli and E. hirae, while II (R = cyclopentyl) exhibited the best antibacterial activity among tetrakis-1,2,3-triazoles against E. hirae. Furthermore, the best antifungal activity against C. albicans and C. tropicalis was reported for the compound I (R = N3CH2CH2), while II (R = cyclohexylmethyl) displayed the best antifungal activity against C. tropicalis and C. albicans. The reported data here conclude that the bis- and tetrakis-1,2,3-triazoles are important cores that should be considered for further development of new anticancer agents acting through the DNA cleavage activity. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Computed Properties of C5H6O2

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

Liu, Xing; Xu, Shijie; Wang, Mengke; Wang, Lingqi; Liu, Jiajia published an article in 2021. The article was titled 《Effect of mixed fermentation with Pichia fermentans, Hanseniaspora uvarum, and Wickeramomyces anomala on the quality of fig (Ficus carica L.) wines》, and you may find the article in Journal of Food Processing and Preservation.Application of 623-47-2 The information in the text is summarized as follows:

This study aimed at evaluating the quality of fig wines that co-fermented by three non-Saccharomyces. Four suitable ratios were selected for co-fermentation, and the fermentation performance of fig wines was compared with fig juice and the pure fermentation of Saccharomyces. High performance liquid chromatog. was used to analyze organic acids and mono-phenols in fig wines, and the amino acid analyzer was used to detect free amino acids. The results showed that fig wines fermented by non-Saccharomyces had higher contents of organic acids and mono-phenols. Head space solid phase microextraction method and analyzed by gas chromatog. mass spectrometry was used to detect 48 aroma compounds in fig wines, and the results revealed that co-fermentation by non-Saccharomyces could obtain up to 38 aroma compounds, which was superior to 30 substances obtained from fermentation by Saccharomyces. Principal component anal. was used to detect pos. correlations between samples and aroma compounds The results showed that there were significant differences in the aroma compounds in the different samples. Non-Saccharomyces played an important role in the aroma and flavor of fruit wine, and were used as an auxiliary starter culture to improve the effect of Saccharomyces fermentation The research on non-Saccharomyces in the literature was limited to the use of non-Saccharomyces alone for fermentation, and the fermentation performance was much worse than Saccharomyces. In this study, three non-Saccharomyces were selected for co-fermentation The result revealed that pleasant fig wine could be obtained by co-fermentation of non-Saccharomyces without a Saccharomyces starter culture, which provided a significant reference for the subsequent research on non-Saccharomyces and fig wines. The results came from multiple reactions, including the reaction of Ethyl propiolate(cas: 623-47-2Application of 623-47-2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Application of 623-47-2

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

《Flexible Interface Design for Stress Regulation of a Silicon Anode toward Highly Stable Dual-Ion Batteries》 was written by Jiang, Chunlei; Xiang, Lei; Miao, Shijie; Shi, Lei; Xie, Donghao; Yan, Jiaxiao; Zheng, Zijian; Zhang, Xiaoming; Tang, Yongbing. HPLC of Formula: 872-36-6 And the article was included in Advanced Materials (Weinheim, Germany) in 2020. The article conveys some information:

Dual-ion batteries (DIBs) have attracted increasing attention due to their high working voltage, low cost, and environmental friendliness, yet their development is hindered by their limited energy d. Pairing silicon-a most promising anode due to its highest theor. capacity (4200 mAh g-1)-with a graphite cathode is a feasible strategy to address the challenge. Nevertheless, the cycling stability of silicon is unsatisfactory due to the loss of elec. contact resulting from the high interface stress when using rigid current collectors. In this work, a flexible interface design to regulate the stress distribution is proposed, via the construction of a silicon anode on a soft nylon fabric modified with a conductive Cu-Ni transition layer, which endows the silicon electrode with remarkable flexibility and stability over 50 000 bends. Assembly of the flexible silicon anode with an expanded graphite cathode yields a silicon-graphite DIB (SGDIB), which possesses record-breaking rate performance (up to 150 C) and cycling stability over 2000 cycles at 10 C with a capacity retention of 97%. Moreover, the SGDIB shows a high capacity retention of ≈84% after 1500 bends and a low self-discharging voltage loss of 0.0015% per bend after 10 000 bends, suggesting high potential for high-performance flexible energy-storage applications. In the experiment, the researchers used Vinylene carbonate(cas: 872-36-6HPLC of Formula: 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.HPLC of Formula: 872-36-6

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

《New Interpretation of X-ray Photoelectron Spectroscopy of Imidazolium Ionic Liquid Electrolytes Based on Ionic Transport Analyses》 was written by Morales-Ugarte, J. E.; Santini, C. C.; Bouchet, R.; Benayad, A.. SDS of cas: 872-36-6This research focused onXPS imidazolium ionic liquid electrolytes transport analysis. The article conveys some information:

We reported a new perspective on the correlation between the electronic structure of an ionic liquid (IL)-based electrolyte probed by XPS and the transport properties analyzed by impedance spectroscopy. We highlighted the core level chem. shifts of 1-hexyl-3-methylimidazolium (bis(trifluoromethanesulfonyl)imide) (C1C6ImTFSI), 1-hexyl-3-methylimidazolium bis(fluorosulfonyl)imide (C1C6ImFSI), and 1-hexyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide (C1C1C6ImTFSI) laden with LiTFSI salt and vinylene carbonate (VC) or fluoroethylene carbonate (FEC) with regard to the transport properties of cations and anions. We pointed out based on detailed binding energy shift analyses a clear effect of the anion on the local organization of Li+ ions. The significant peak shift in the case of C1C6ImTFSI laden with LiTFSI corroborates the formation of [Li(TFSI)2]- complexes. On the contrary, the lower amplitude of the binding energy shift of C1C6ImFSI for both anion- and cation-related peaks indicates that the electronic distribution around the cation and the anion is not affected when the LiTFSI salt is added, which plays a strong role in the ion dynamics (lower viscosity) of the electrolyte. The XPS result supports the preponderant role of imidazolium ionic liquid based on FSI anion to form an electrolyte less prone to form ionic complexes. The methylation of the imidazolium cation contributes to the reduction of the interaction between the C1C1C6Im cation and TFSI anion, while additives VC and FEC contribute to the change of the alkyl configuration in C1C6Im cation, leading to the modification of the macroscopic properties of the ILs. The experimental part of the paper was very detailed, including the reaction process of Vinylene carbonate(cas: 872-36-6SDS of cas: 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.SDS of cas: 872-36-6

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

《Synthesis and antitumor activities investigation of a C-nucleoside analogue of ribavirin》 was published in European Journal of Medicinal Chemistry in 2020. These research results belong to Sabat, Nazarii; Migianu-Griffoni, Evelyne; Tudela, Tiffany; Lecouvey, Marc; Kellouche, Sabrina; Carreiras, Franck; Gallier, Florian; Uziel, Jacques; Lubin-Germain, Nadege. Reference of Ethyl propiolate The article mentions the following:

SRO-91 is a non-natural ribofuranosyl-1,2,3-triazole C-nucleoside I obtained by a synthetic sequence involving a C-alkynyl glycosylation mediated by metallic indium and a Huisgen cycloaddition for the construction of the triazole. Its structure is close to the one of ribavirin, a drug presenting a broad-spectrum against viral infections. SRO-91 antitumor activities were investigated on 9 strains of tumor cells and IC50 of the order of 1μM were obtained on A431 epidermoid carcinoma cells and B16F10 skin melanoma cells. In addition, studies of ovarian tumor cell inhibitions show an interesting activity in regard to the need for new drugs for this pathol. Finally, cytotoxicity and mouse toxicity studies reveal a favorable therapeutic index for SRO-91. In the experimental materials used by the author, we found Ethyl propiolate(cas: 623-47-2Reference of Ethyl propiolate)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Reference of Ethyl propiolate

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

Product Details of 623-47-2In 2019 ,《Design, Synthesis, Molecular Modeling Study, and Antimicrobial Activity of Some Novel Pyrano[2,3-b]pyridine and Pyrrolo[2,3-b]pyrano[2.3-d]pyridine Derivatives》 appeared in Journal of Heterocyclic Chemistry. The author of the article were Elkanzi, Nadia A. A.; Bakr, Rania B.; Ghoneim, Amira A.. The article conveys some information:

Novel derivatives of pyrano[2,3-b]pyridine and pyrrolo[2,3-b]pyrano[2.3-d]pyridine were prepared, and their structures were elucidated by spectral and elemental analyses. The newly prepared candidates were evaluated for their antimicrobial activity against Candida sp., Aspergillus multi, Aspergillus niger, Escherichia coli, and Staphylococcus aureus. All the tested compounds revealed potent to moderate activity toward all tested microorganisms; especially, candidate I showed comparable antifungal activity as that showed by the standard drug ketoconazole toward Candida sp., and Et 4-methyl-1,7,8,9-tetrahydropyrano[2,3-b]pyrrolo[2,3-d]pyridine-3-carboxylate II was the most active compound against all the tested bacteria. Furthermore, the newly synthesized compounds are subjected to mol. docking study for the inhibition of the enzyme L-glutamine: D-fructose-6-phosphate amidotransferase [GlcN-6-P], which is a new target for antimicrobials to explain action mode of these target compounds as leads for discovering other antimicrobial agents. After reading the article, we found that the author used Ethyl propiolate(cas: 623-47-2Product Details of 623-47-2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Product Details of 623-47-2

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

In 2019,Journal of the Electrochemical Society included an article by Schwenke, K. Uta; Solchenbach, Sophie; Demeaux, Julien; Lucht, Brett L.; Gasteiger, Hubert A.. Synthetic Route of C3H2O3. The article was titled 《The impact of CO2 evolved from VC and FEC during formation of graphite anodes in lithium-ion batteries》. The information in the text is summarized as follows:

Additives such as vinylene carbonate (VC) and fluoroethylene carbonate (FEC) are commonly added to Li-ion battery electrolytes in order to form a solid electrolyte interphase (SEI) on the anode, suppressing continuous solvent reduction Here, we directly compare VC and FEC by analyzing the SEI with FTIR and XPS, and the evolved gases with online electrochem. mass spectrometry (OEMS) in different model systems. Since both additives evolve mainly CO2 during formation, the effect of CO2 as an additive is compared to the addition of VC and FEC. While Li2CO3 is as expected the main SEI compound found due to the added CO2, surprisingly no CO was detected in the gas phase of such cells. Based on FTIR, NMR and OEMS analyses of cells filled with 13C labeled CO2, we suggest a mechanism explaining the beneficial effects of CO2 and hence also of CO2 evolving additives in lithium-ion battery cells. While the generation of polycarbonate from FEC or VC reduction is observed, the generation of Li2CO3 may be as important as the generation of polycarbonate. In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6Synthetic Route of C3H2O3) was used in this study.

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Synthetic Route of C3H2O3

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