Tag: 200-300

Crystallographic Understanding of Photoelectric Properties for C₆₀ Derivatives Applicable as Electron Transporting Materials in Perovskite Solar Cells was written by Xing, Zhou;Li, Shu-Hui;Xu, Piao-Yang;Tian, Han-Rui;Deng, Lin-Long;Yao, Yang-Rong;Chen, Bin-Wen;Xie, Fang-Fang;An, Ming-Wei;Yun, Da-Qin;Xie, Su-Yuan;Zheng, Lan-Sun. And the article was included in Chemical Research in Chinese Universities in 2022.Category: esters-buliding-blocks The following contents are mentioned in the article:

Hundreds of C₆₀ derivatives stand out as electrontransporting materials(ETMs), for example, in perovskite solar cells(PSCs), due to their properties on electron extraction or defect passivation. However, it still lacks of guidelines to update C60-based ETMs with excellent photoelec. properties. In this work, crystallog. data of eight C₆₀-based ETMs, including pristine C₆₀ and the well-known PCBM as well as six newly synthesized fullerenes, are analyzed to establish the connections between derivatized structures and photoelec. properties for the typical carbon cluster of C₆₀. In terms of packing centroid-centroid distance between neighboring carbon cages, the crystallog. data are useful for probing photoelec. properties, such as electrochem. properties, electron mobility and photovoltaic performances, and therefore facilitate to design novel C₆₀-based ETMs for PSCs with high performances. This study involved multiple reactions and reactants, such as Methyl 5-(4-fluorophenyl)-5-oxopentanoate (cas: 149437-67-2Category: esters-buliding-blocks).

Methyl 5-(4-fluorophenyl)-5-oxopentanoate (cas: 149437-67-2) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Category: esters-buliding-blocks

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

Tellurolate-induced 1,4-elimination of 1,4-dibromo 2-enes. Syntheses of 1,3-dienes was written by Engman, Lars;Bystroem, Styrbjoern E.. And the article was included in Journal of Organic Chemistry in 1985.Electric Literature of C14H24O2 The following contents are mentioned in the article:

Na 2-thiophenetellurolate (I), generated in catalytic amounts from bis(2-thienyl) ditelluride by NaBH₄, debrominated 1,4-dibromo-2-olefins, e.g., BrCH₂CH:CHCHRBr [II, R = Et, Bu, Me(CH₂)_n, AcO(CH₂)_m; n = 6, 8; m = 7, 8] to 1,3-dienes under mild conditions. The required II were prepared by allylic α,α’-bromination of olefins by N-bromosuccinimide. Terminal olefins yielded, via allylic rearrangement, a mixture of II and 1,2-dibromo-3-olefins. Both isomers were converted to 1,3-dienes (E/Z â‰?9/1) by I. The synthetic utility of the tellurolate-induced debromination was demonstrated in a 2-step synthesis of (E)-CH₂:CHCH:CH(CH₂)₈OAc, the main component of the red bollworm moth sex pheromone. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Electric Literature of C14H24O2).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Electric Literature of C14H24O2

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

Monitoring the evolution of volatile compounds using gas chromatography during the stages of production of Moscatel sparkling wine was written by Soares, Rafael Dutra;Welke, Juliane Elisa;Nicolli, Karine Primieri;Zanus, Mauro;Caramao, Elina Bastos;Manfroi, Vitor;Zini, Claudia Alcaraz. And the article was included in Food Chemistry in 2015.Application of 5444-75-7 The following contents are mentioned in the article:

This study reports, for the first time, the main changes that occur with some important aroma compounds of Moscatel sparkling wines during winemaking, measured using headspace solid-phase microextraction, one-dimensional and comprehensive two-dimensional gas chromatog. (GC × GC) with mass spectrometry detection (MS). The best conditions of volatile extraction included the use of PDMS/DVB fiber, 2 mL of wine, 30% of NaCl, 40 °C for 30 min. The chromatog. profile of sparkling wines showed decreasing amounts of monoterpenes (limonene, 4-terpineol, terpinolene, citronellol, α-terpineol, linalool, hotrienol, and nerol oxide), increasing amounts of esters (terpenyl esters, Et octanoate, Et decanoate and hexyl acetate) and alcs. (1-nonanol and 2-phenylethanol). Sixty-nine compounds co-eluted in the first dimension; only six co-eluted in the second dimension. GC × GC/TOFMS allows more detailed study of the volatile profile of sparkling wines. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Application of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Application of 5444-75-7

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

Dielectric enhancement over a broad temperature by nanofiller at ultra-low volume content in poly(ether methyl ether urea) was written by Zhang, Tian;Chen, Xin;Zhang, Qiyan;Zhang, Q. M.. And the article was included in Applied Physics Letters in 2020.Computed Properties of C13H10O3 The following contents are mentioned in the article:

This Letter studies the dielec. responses of nanocomposites of poly(ether Me ether urea) (PEMEU) with alumina nanofillers at less than 0.7% volume loading (0.7 volume %). The results show that the dielec. constant K of PEMEU nanocomposites is enhanced by the nanofillers. The enhancement peaks at 0.33 volume % nanofiller loading, from K = 3.9 of neat polymer to K = 5.5 of nanocomposites from room temperature to 200°C, above the glass transition (âˆ?50°C) of the polymer. Except for an enhanced dielec. constant, the nanocomposite maintains a low dielec. loss and a high breakdown strength of 500 MV/m at room temperature and 300 MV/m at 150°C, resp. Thus, the nanocomposite with 0.33 volume % nanofillers delivers discharged energy densities of 6.5 J/cm³ at room temperature and 2 J/cm³ at 150°C with better than 90% charge/discharge efficiency, 40% higher than the neat polymer. (c) 2020 American Institute of Physics. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Computed Properties of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Computed Properties of C13H10O3

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

New Kind of Lignin/Polyhydroxyurethane Composite: Green Synthesis, Smart Properties, Promising Applications, and Good Reprocessability and Recyclability was written by Zhao, Wei;Liang, Zhenhua;Feng, Zihao;Xue, Bailiang;Xiong, Chuanyin;Duan, Chao;Ni, Yonghao. And the article was included in ACS Applied Materials & Interfaces in 2021.Application In Synthesis of Diphenyl carbonate The following contents are mentioned in the article:

A new kind of biobased material named lignin-containing polyhydroxyurethane (LPHU) is prepared from bis(6-membered cyclic carbonate) (BCC), dimer fatty diamine, and lignin for the first time. The preparation strategy is isocyanate-free, solvent-free, and catalyst-free, representing a green and environmentally friendly method to access polyurethane (PU)/lignin composites. The resultant LPHUs possess dual networks: a dynamic covalent network and a hydrogen bonding network, exhibiting superior mech. strength, high thermal stability, excellent reprocessability/recyclability, and smart properties such as shape memory and self-healing. Potential application investigations indicate that the resultant LPHUs can be not only used for smart packaging label fabrication for heat-sensitive commodities but also further combined with natural cellulose paper to prepare paper-based electromagnetic shielding materials with high mech. performance. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Application In Synthesis of Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application In Synthesis of Diphenyl carbonate

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

Application of a novel cavity nucleating agent based on cyclodextrin in polymer foaming materials and in situ visual injection moulding study was written by Zhou, Yuhui;He, Li;Gong, Wei. And the article was included in Journal of Materials Science in 2021.Formula: C13H10O3 The following contents are mentioned in the article:

In this study, β-cyclodextrin nanosponges were synthesized using organic carbonates, namely gelatinous β-cyclodextrin nanosponges (NJ) and vitreous β-cyclodextrin nanosponges (BL). The ‘constructed’ porous structures were characterized by SEM. NJ and BL with different cavity structures as heterogeneous nucleation agents were selected for the polypropylene and polylactic acid foaming injection molding processes. The obtained exptl. results showed that NJ significantly reduced nucleation energy barrier and thus exhibited the highest nucleation efficacy. The nucleation mechanism was explored via a combination of the classical nucleation theory and in situ visual injection molding anal. In a word, the current work provided an insight into the structure-nucleating efficiency relationship for porous particles and highlighted the importance of the construction of porous structures in the organic nucleating agents to improve the polymeric foaming performances. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Formula: C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Formula: C13H10O3

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

Solid state ¹³C NMR characterization study on fourth generation Ziegler-Natta catalysts was written by Heikkinen, Harri;Liitiae, Tiina;Virkkunen, Ville;Leinonen, Timo;Helaja, Tuulamari;Denifl, Peter. And the article was included in Solid State Nuclear Magnetic Resonance in 2012.Related Products of 5444-75-7 The following contents are mentioned in the article:

In this study, solid-state ¹³C NMR spectroscopy was utilized to characterize and identify the metal-ester coordination in active fourth-generation (phthalate) Ziegler-Natta (ZN) catalysts. It is known that different donors affect the active species in ZN catalysts. However, there is still limited data available of detailed mol. information on how the donors and the active species are interacting. One of the main goals of this work was to get better insight into the interactions of donor and active species. Based on the anisotropy tensor values (δ₁₁, δ₂₂, δ₃₃) from low magic-angle spinning ¹³C NMR spectra in combination with chem. shift anisotropy calculations (δ _aniso and η), both the coordinative metal (Mg/Ti) and the symmetry of this interaction between metal and the internal donor in the active catalyst (MgCl₂/TiCl₄/electron donor) system could be identified. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Related Products of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Related Products of 5444-75-7

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

Anionic ring-opening polymerization behavior of trans-cyclohexene carbonate using metal tert-butoxides: Construction of living anionic ring-opening polymerization by lithium tert-butoxide was written by Kawamoto, Masato;Mori, Yasuyuki;Tsuge, Akihiko;Endo, Takeshi. And the article was included in Journal of Polymer Science (Hoboken, NJ, United States) in 2022.Recommanded Product: 102-09-0 The following contents are mentioned in the article:

Anionic ring-opening polymerization (ROP) behavior of trans-cyclohexene carbonate (CHC) using metal alkoxides as initiators was investigated. As a result, lithium tert-butoxide-initiated ROP of CHC with a high-monomer concentration (10 M) at low temperature (-15 to -10°C) proceeded to afford a poly(trans-cyclohexene carbonate) (PCHC) without undesired side reactions such as mainly backbiting. The suppression of side reactions enables the control of the mol. weight (M_n = 2400-6100) of PCHC with low molar-mass dispersity values (M_w/M_n = 1.16-1.22). Furthermore, by increasing the feed ratio of the monomer to the initiator, the mol. weight increases proportionally, indicating a controllable polymerization The results of a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry anal., a kinetic study, and a chain extension experiment suggested a living nature of this ROP using lithium tert-butoxide. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Recommanded Product: 102-09-0).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 102-09-0

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

Discovery of Roblitinib (FGF401) as a Reversible-Covalent Inhibitor of the Kinase Activity of Fibroblast Growth Factor Receptor 4 was written by Fairhurst, Robin A.;Knoepfel, Thomas;Buschmann, Nicole;Leblanc, Catherine;Mah, Robert;Todorov, Milen;Nimsgern, Pierre;Ripoche, Sebastien;Niklaus, Michel;Warin, Nicolas;Luu, Van Huy;Madoerin, Mario;Wirth, Jasmin;Graus-Porta, Diana;Weiss, Andreas;Kiffe, Michael;Wartmann, Markus;Kinyamu-Akunda, Jacqueline;Sterker, Dario;Stamm, Christelle;Adler, Flavia;Buhles, Alexandra;Schadt, Heiko;Couttet, Philippe;Blank, Jutta;Galuba, Inga;Trappe, Jorg;Voshol, Johannes;Ostermann, Nils;Zou, Chao;Berghausen, Jorg;Del Rio Espinola, Alberto;Jahnke, Wolfgang;Furet, Pascal. And the article was included in Journal of Medicinal Chemistry in 2020.Category: esters-buliding-blocks The following contents are mentioned in the article:

FGF19 signaling through the FGFR4/β-klotho receptor complex has been shown to be a key driver of growth and survival in a subset of hepatocellular carcinomas, making selective FGFR4 inhibition an attractive treatment opportunity. A kinome-wide sequence alignment highlighted a poorly conserved cysteine residue within the FGFR4 ATP-binding site at position 552, two positions beyond the gate-keeper residue. Several strategies for targeting this cysteine to identify FGFR4 selective inhibitor starting points are summarized which made use of both rational and unbiased screening approaches. The optimization of a 2-formylquinoline amide hit series is described in which the aldehyde makes a hemithioacetal reversible-covalent interaction with cysteine 552. Key challenges addressed during the optimization are improving the FGFR4 potency, metabolic stability, and solubility leading ultimately to the highly selective first-in-class clin. candidate roblitinib. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Category: esters-buliding-blocks).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Category: esters-buliding-blocks

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

En Route to CO2-Based (a)Cyclic Carbonates and Polycarbonates from Alcohols Substrates by Direct and Indirect Approaches was written by Brege, Antoine;Grignard, Bruno;Mereau, Raphael;Detrembleur, Christophe;Jerome, Christine;Tassaing, Thierry. And the article was included in Catalysts in 2022.Synthetic Route of C13H10O3 The following contents are mentioned in the article:

A review. This review is dedicated to the state-of-the art routes used for the synthesis of CO₂-based (a)cyclic carbonates and polycarbonates from alc. substrates, with an emphasis on their resp. main advantages and limitations. The first section reviews the synthesis of organic carbonates such as dialkyl carbonates or cyclic carbonates from the carbonation of alcs. Many different synthetic strategies have been reported (dehydrative condensation, the alkylation route, the “leaving group” strategy, the carbodiimide route, the protected alcs. route, etc.) with various substrates (mono-alcs., diols, allyl alcs., halohydrins, propargylic alcs., etc.). The second section reviews the formation of polycarbonates via the direct copolymerization of CO₂ with diols, as well as the ring-opening polymerization route. Finally, polycondensation processes involving CO₂-based di-Me and di-Ph carbonates with aliphatic and aromatic diols are described. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Synthetic Route of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Synthetic Route of C13H10O3

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