Tag: 200-300

Numata, Youhei; Ashraful, Islam; Shirai, Yasuhiro; Han, Liyuan published an article in 2011, the title of the article was Preparation of donor-acceptor type organic dyes bearing various electron-withdrawing groups for dye-sensitized solar cell application.Name: tert-Butyl 2-(4-nitrophenyl)acetate And the article contains the following content:

Novel donor-π-spacer-acceptor type organic dyes bearing various electron-withdrawing groups on their acceptor part were synthesized by Knoevenagel condensation with acetic acid silyl ester derivatives Dye-sensitized solar cells with the new dyes present solar light-to-electricity conversion efficiency of 2.51-4.05%. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Name: tert-Butyl 2-(4-nitrophenyl)acetate

The Article related to donor acceptor type organic dye electron withdrawing group, triphenylamine bithiophene based dye sensitized solar cell, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Name: tert-Butyl 2-(4-nitrophenyl)acetate

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

On January 31, 2020, Yong, Hansol; Park, Habin; Jung, Cheolsoo published an article.Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate) The title of the article was Quasi-solid-state gel polymer electrolyte for a wide temperature range application of acetonitrile-based supercapacitors. And the article contained the following:

A quasi-solid-state gel polymer electrolyte (GPE) is designed by integrating a free-standing cross-linked film and an injectable polymer electrolyte for applications in acetonitrile-based supercapacitors (SCs) using activated carbon (AC) electrodes. The synthesized GPE exhibits a high ionic conductivity over a wide temperature range (∼1.7 × 10-3 S cm-1 at -20°C to ∼7.9 × 10-3 S cm-1 at 60°C) as well as thermal stability and flexibility. A quasi-solid-state SC equipped with the GPE exhibits ∼13% higher specific capacitance (∼56% smaller Warburg resistance) at room temperature (RT) than that of an SC containing a corresponding liquid electrolyte. The quasi-solid-state SC also exhibits excellent electrochem. characteristics over a temperature range of -20 to 60°C with only ∼23% capacitance loss at -20°C compared to that at RT. Furthermore, the quasi-solid-state SC maintains ∼93% of its initial capacitance (only ∼4% increase in ESR) after 120-h storage at 85°C (above the b.p. of acetonitrile). This capacitance is superior to an SC equipped with a film-only GPE (∼73% capacitance retention and ∼270% increase in ESR). The proposed strategy provides new insights into the development of GPE designs for practical applications to solid-state SCs operating over a wide temperature range. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

The Article related to gel polymer electrolyte supercapacitor crosslinked flexible acetonitrile temperature, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)

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

On December 9, 2021, Wu, Minjian; Wang, Xuepu; Pan, Yingtong; Li, Jiuyang; Li, Xun; Sun, Yan; Zou, Yunlong; Zhang, Hefeng; Zhang, Kaka published an article.Application In Synthesis of Phenyl Salicylate The title of the article was Two-Component Design Strategy: Achieving Intense Organic Afterglow and Diverse Functions in Coronene-Matrix Systems. And the article contained the following:

A two-component design strategy developed by us and other research groups, where a second component is used to control the triplet excited state properties of the luminescent component (the first component), has been shown to allow a flexible choice of building blocks to prepare high-performance afterglow materials with intriguing properties. Here, we report the realization of intense organic afterglow and diverse functions by extending this two-component strategy to dopant-matrix systems, which feature small kF, small kP, and very small knr + kq. With coronene mols. and deuterated coronene being fixed as luminescent dopants, variation of organic matrixes reveals that either small-mol. organic matrixes or polymeric matrixes can be used to accommodate coronene mols. and largely reduce knr + kq values, leading to the emergence of very bright organic afterglow at ambient conditions. The obtained coronene-matrix materials have been found to be readily processed into desired shapes, large-area thin films, and aqueous afterglow dispersions by melt casting and other techniques, function as efficient afterglow donors for the fabrication of red afterglow materials, and exhibit promising time-gated bioimaging functionality to avoid interference from strong fluorescence backgrounds. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Application In Synthesis of Phenyl Salicylate

The Article related to organic afterglow coronene matrix system, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Application In Synthesis of Phenyl Salicylate

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

On April 30, 2021, Ashton, Gage P.; Charsley, Edward L.; Harding, Lindsay P.; Parkes, Gareth M. B. published an article.SDS of cas: 118-55-8 The title of the article was DSC temperature calibration over the range -125°C to 50°C. And the article contained the following:

The lack of Nationally Certified Reference Materials for the calibration of DSC equipment in the sub-ambient range has been addressed by the introduction of a Certified Reference Material of purified cyclohexane by the National Metrol. Institute of Japan. This sample, in conjunction with the CRM material Ph salicylate and the ITS-90 fixed point material mercury, has enable a DSC-thermomicroscopy system to be accurately calibrated over the temperature range -90°C to 50°C. The DSC has then been used to measure values for the solid-solid transitions in the potential Certified Reference Materials ammonium sulfate, adamantane and ammonium dihydrogen phosphate, which have the advantage of being thermally stable and easy to handle, and for the m.p. of di-Ph ether. In addition, the effect of temperature cycling on these materials has been investigated. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).SDS of cas: 118-55-8

The Article related to differential scanning calorimetry temperature calibration, Thermodynamics, Thermochemistry, and Thermal Properties: Calorimetry, Thermal Analysis, Thermogravimetry and other aspects.SDS of cas: 118-55-8

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

On August 31, 1990, Os’kina, O. Yu.; Usmanov, S. M.; Sivergin, Yu. M. published an article.Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Dielectric relaxation in some diacetylene derivatives. And the article contained the following:

The dielec. relaxation of diacryl derivatives of 1.6-hexa-2,4-diyne was studied at 100-260 K and at frequency of 60-105 Hz. The distribution functions of the relaxation times were analyzed. Mechanisms of the mol. motion are discussed in terms of the function of dielec. relaxation. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

The Article related to dielec relaxation polarization diacetylene derivative, acryl derivative hexadiyne dielec constant, Electric Phenomena: Dielectric and Electret Properties (Including Electric Moments, and Polarizability) and other aspects.Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

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

On July 15, 2018, Lunkenheimer, P.; Wehn, R.; Koehler, M.; Loidl, A. published an article.Synthetic Route of 118-55-8 The title of the article was Fast dynamics in glass-forming salol investigated by dielectric spectroscopy. And the article contained the following:

We analyze dielec.-loss spectra of glass forming salol extending up to 400GHz allowing for the detection of the high-frequency min., where the fast critical dynamics predicted by the mode-coupling theory of the glass transition should prevail. Indeed, we find such a min. which, moreover, well fulfills the critical scaling predicted by the theory. This includes the spectral shape of the min., the critical temperature dependence of the min. frequency and amplitude, and the critical temperature dependence of the α-relaxation rate at high temperatures The min. exponents a and b leading to a system parameter λ≈0.63 and the critical temperature Tc=256K are all in reasonable agreement with previous investigations of salol using different methods. Salol was one of the first materials where mode-coupling theory was tested and initial dielec. measurements were taken as an argument against the universal applicability of this theory. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Synthetic Route of 118-55-8

The Article related to glass salol dielec spectrum dynamics, Electric Phenomena: Dielectric and Electret Properties (Including Electric Moments, and Polarizability) and other aspects.Synthetic Route of 118-55-8

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

On June 30, 2008, Gellerman, G.; Hazan, E.; Brider, T.; Traube, T.; Albeck, A.; Shatzmiler, S. published an article.Quality Control of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate The title of the article was Facile Synthesis of Orthogonally Protected Optically Pure Keto- and Diketopiperazine Building Blocks for Combinatorial Chemistry. And the article contained the following:

A simple and convenient synthesis of orthogonally protected multi-tethered, optically pure 2-ketopiperazine and 2,5-diketopiperazine scaffolds for Fmoc and Boc combinatorial chem. was achieved, starting from accessible chiral amino acid precursors, by sequentially utilizing reductive alkylation, dipeptide coupling and ketopiperazine ring formation as key steps. These scaffolds can introduce valuable drug-like properties in three independent directions to any medicinally relevant piperazine-based motif by “around the scaffold” drug optimization. In addition, these building blocks have a wide application scope in managing fast and efficient multi-cyclic optimization processes in the combinatorial chem. and drug design fields. The experimental process involved the reaction of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate(cas: 53838-27-0).Quality Control of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate

The Article related to chiral amino acid reduction alkylation coupling ring formation heterocyclization, keto diketopiperazine stereoselective preparation combinatorial chem, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Quality Control of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate

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

On April 22, 2004, Shi, Qian; Wang, Hui-kang; Oyama, Masayoshi; Vance, John Robert; Chen, Ming S. published a patent.Synthetic Route of 53838-27-0 The title of the patent was Preparation of podophyllotoxin derivatives as anticancer compounds. And the patent contained the following:

Podophyllotoxin derivatives, such as I [R1, R2, R3, R7 = H, alkyl; R4, R6 = alkyl; R5 = H, P(O)(ORa)2; Ra = H, alkyl; T = H; XT = :N; X = bond, O, S, NRb; Rb = H, alkyl; Y = 5-membered heteroaryl or heterocyclyl, optionally substituted with one or more halogen, alkyl, cyclyl, aryl, heteroaryl, heterocyclyl, etc.], were prepared for their therapeutic use as anticancer agents. Thus, podophyllotoxin derivative II was prepared via a multistep synthetic sequence starting from 4′-demethyl-4β-bromo-4-desoxypodophyllotoxin (prepared from podophyllotoxin), 2-aminothiazole-4-acetic acid and (trimethylsilyl)diazomethane. II showed unexpectedly high levels of cellular protein-linked DNA breaks (PLDB) induction in KB cells when tested at 5μg/mL. This invention also features a method for treating cancer. The experimental process involved the reaction of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate(cas: 53838-27-0).Synthetic Route of 53838-27-0

The Article related to podophyllotoxin derivative preparation anticancer, Biomolecules and Their Synthetic Analogs: Others, Including Purines, Pyrimidine Nucleic Acid Bases, Flavins, Lignans and other aspects.Synthetic Route of 53838-27-0

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

On January 31, 2022, Gomez Bouzo, Uxia; Sanchez-Sanz, Irene; Gonzalez, Maria; Gomez, Generosa; Fall, Yagamare published an article.Computed Properties of 2873-29-2 The title of the article was First total synthesis of 7-thia-(-)-muricatacin. And the article contained the following:

A straightforward synthesis of 7-thia-(-)-muricatacin I has been achieved from a com. available starting material and using the furan approach, hence enlarging the scope of methodol. 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).Computed Properties of 2873-29-2

The Article related to thia muricatacin preparation total synthesis, Biomolecules and Their Synthetic Analogs: Others, Including Purines, Pyrimidine Nucleic Acid Bases, Flavins, Lignans and other aspects.Computed Properties of 2873-29-2

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

van der Born, Dion; Sewing, Claudia; Herscheid, J. D. M.; Windhorst, Albert D.; Orru, Romano V. A.; Vugts, Danielle J. published an article in 2014, the title of the article was A Universal Procedure for the [18F]Trifluoromethylation of Aryl Iodides and Aryl Boronic Acids with Highly Improved Specific Activity.Category: esters-buliding-blocks And the article contains the following content:

Herein, we describe a valuable method for the introduction of the [18F]CF3 group into arenes with highly improved specific activity by the reaction of [18F]trifluoromethane with aryl iodides or aryl boronic acids. This [18F]trifluoromethylation reaction is the first to be described in which the [18F]CF3 products are generated in actual trace amounts and can therefore effectively be used as PET tracers. The method shows broad scope with respect to possible aryl iodide and aryl boronic acid substrates, as well as good to excellent conversion. In particular, the [18F]trifluoromethylation of boronic acids was found to outperform [18F]trifluoromethylation reactions of halogenated aryl precursors with regard to conversion, reaction conditions, and kinetics. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Category: esters-buliding-blocks

The Article related to arene preparation trifluoromethylation aryl iodide boronic acid, fluorine-18, isotopic labeling, radiochemistry, specific activity, trifluoromethylation, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Hydrocarbons (Saturated and Unsaturated Side Chains) and other aspects.Category: esters-buliding-blocks

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