Tag: M.W:100-200

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 705-86-2, Name is 6-Pentyltetrahydro-2H-pyran-2-one, SMILES is O=C1CCCC(CCCCC)O1, in an article , author is Archana, once mentioned of 705-86-2, Application In Synthesis of 6-Pentyltetrahydro-2H-pyran-2-one.

Synthesis of Novel Triazolyl/Oxadiazolyl/Thiadiazolyl-Piperazine as Potential Anticonvulsant Agents

Reaction of piperazine with chloroacetylchloride in dry acetone yield compound 1, which on reaction with hydrazine hydrate yielded compound 2, which was further reacted with various substituted phenylisothiocyanates in absolute alcohol to afford compounds 3-8 i. e. 2-(carbazolylacetyl)-N-(substitutedphenyl)-hydrazinepiperazinothioamides. Compounds 3-8 on reaction with aqueous NaOH, ethanolic NaOH and conc. H2SO4 afford triazoles 9-14, oxadiazoles 15-20 and thiadiazoles 21-26 respectively. Twenty four newly synthesized compounds were evaluated for their anticonvulsant activity and acute toxicity. The structures of these compounds were established on the basis of analytical and spectral data.

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One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 464-48-2, Name is (-)-Camphor, formurla is C10H16O. In a document, author is Abedinifar, Fahimeh, introducing its new discovery. Application In Synthesis of (-)-Camphor.

Synthesis and biological evaluation of a new series of benzofuran-1,3,4-oxadiazole containing 1,2,3-triazole-acetamides as potential alpha-glucosidase inhibitors

A series of new benzofuran-1,3,4-oxadiazole containing 1,2,3-triazole-acetamides 12a-n as potential anti-alpha-glucosidase agents were designed and synthesized. alpha-Glucosidase inhibition assay demonstrated that all the synthesized compounds 12a-n (half-maximal inhibitory concentration [IC50] values in the range of 40.7 +/- 0.3-173.6 +/- 1.9 mu M) were more potent than standard inhibitor acarbose (IC50 = 750.0 +/- 12.5 mu M). Among them, the most potent compound was compound 12c, with inhibitory activity around 19-fold higher than acarbose. Since the most potent compound inhibited alpha-glucosidase in a competitive mode, a docking study of this compound was also performed into the active site of alpha-glucosidase. In vitro and in silico toxicity assays of the title compounds were also performed.

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In an article, author is Burilov, Vladimir, once mentioned the application of 818-61-1, Name is 2-Hydroxyethyl acrylate, molecular formula is C5H8O3, molecular weight is 116.1152, MDL number is MFCD00002865, category is Triazoles. Now introduce a scientific discovery about this category, Recommanded Product: 2-Hydroxyethyl acrylate.

New poly-imidazolium-triazole particles by CuAAC cross-linking of calix[4]arene bis-azide/alkyne amphiphiles – a prospective support for Pd in the Mizoroki-Heck reaction

A new imidazolium amphiphilic calix[4]arene with terminal acetylene fragments in the polar region was synthesized according to a two step scheme including regioselective chloromethylation of distal di-O-butyl calix[4]arene and subsequent interaction with 1-(hex-5-yn-1-yl)-1H-imidazole. The aggregation properties (CAC, the size and zeta potential of aggregates) of alkynyl calix[4]arene as well as of previously synthesized azidopropyl calix[4]arene and their 1 : 1 mixture were disclosed. Macrocycles with azide and alkyne fragments in the polar region were covalently cross-linked under CuAAC conditions in water. Successful cross-linking of molecules has been proven by IR spectroscopy and MALDI-TOF spectrometry. The obtained polymeric particles were studied both in solution and the solid state and the presence of submicron (similar to 200 nm) and micron (similar to 1-5 mu m) particles with the prevalence of the latter was found. The average molecular weight of the polymer according to the static light scattering data was found to be 639 +/- 44 kDa. The obtained polymeric imidazolium-triazole particles were tested as a support for Pd(OAc)(2) in the Mizoroki-Heck reaction carried out in both organic and water media. In both solvents (especially in water) the addition of imidazolium-triazole particles to Pd(OAc)(2) increased the conversion of 4-iodanisole. It was found that the ratio between the products (1,1 and 1,2-substituted ethylenes) changes drastically on going from DMF to water from 1 : 5 to 1 : 40 when using supported Pd(OAc)(2).

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Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 5445-51-2, Name is Cyclobutane-1,1-dicarboxylic acid, molecular formula is , belongs to Triazoles compound. In a document, author is El Azab, Islam H., Safety of Cyclobutane-1,1-dicarboxylic acid.

New 1,2,3-Triazole-Containing Hybrids as Antitumor Candidates: Design, Click Reaction Synthesis, DFT Calculations, and Molecular Docking Study

In an effort to improve and achieve biologically active anticancer agents, a novel series of 1,2,3-triazole-containing hybrids were designed and efficiently synthesized via the Cu-catalyzed azide-alkyne cycloaddition (CuAAC) reaction of substituted-arylazides with alkyne-functionalized pyrazole-[1,2,4]-triazole hybrids. The structure geometry of these new clicked 1,2,3-triazoles was explored by density functional theory (DFT) using the B3LYP/6-311++G(d,p) level; also, the potential activity of the compounds for light absorption was simulated by time-dependent DFT calculations (TD-DFT). The antitumor impacts of the newly synthesized compounds were in vitro estimated to be towards the human liver cancer cell line (HepG-2), the human colon cancer cell line (HCT-116), and human breast adenocarcinoma (MCF-7). Among the tested compounds, conjugate 7 was the most potent cytotoxic candidate towards HepG-2, HCT-116, and MCF-7, with IC50 = 12.22, 14.16, and 14.64 mu M, respectively, in comparison to that exhibited by the standard drug doxorubicin (IC50 = 11.21, 12.46, and 13.45 mu M). Finally, a molecular docking study was conducted within the epidermal growth factor receptor (EGFR) active site to suggest possible binding modes. Hence, it could conceivably be hypothesized that analogies 7, 6, and 5 could be considered as decent lead candidate compounds for anticancer agents.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 5445-51-2, in my other articles. Safety of Cyclobutane-1,1-dicarboxylic acid.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Category: Triazoles, 705-86-2, Name is 6-Pentyltetrahydro-2H-pyran-2-one, SMILES is O=C1CCCC(CCCCC)O1, in an article , author is Cao, Maoqi, once mentioned of 705-86-2.

New bi-functionalized ordered mesoporous material as heterogeneous catalyst for production of 5-hydroxymethylfurfural

Newly designed ordered two dimensional hexagonal bi-functionalized mesoporous organosilica material (b-MPOS) has been synthesized through the step-by-step post-grafting synthetic pathway. The pure calcined SBA-15 was subjected for functionalization using chloro-substituted organo-silica ligand to get MPCFOS, denoted by mesoporous chloro-functionalized organosilica material. This material undergoes through the substitution reaction (S(N)2) between the pore wall attached chloro-functional group and the organic bi-functionalized ligand i.e. 3-Amino-1,2,4-triazole-5-carboxylic acid containing amine group in the presence of potassium carbonate which was used as a mild base under the refluxing conditions. The as-synthesized bi-functionalized material displays the high specific surface area as well as pore diameter of 537 m(2) g(-1) and 9.4 nm, respectively. Since, as-synthesized material contains both acid and basic functional groups, temperature programmed desorption (TPD) of NH3 and CO2 analysis, have been performed to determine the total amount of surface acidic and basic sites of this material which are estimated to be 1.87 and 2.07 mmol g(-1), respectively. Due to the presence of Bronsted acid and base groups together with the bi-functionalized material, it has been investigated as a heterogeneous catalyst for carbohydrates transformation to synthesize the valuable chemical like 5-hydroxymethylfurfural (HMF) from fructose with the high product yield of 86 mol% by using microwave irradiated heating conditions.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 705-86-2, you can contact me at any time and look forward to more communication. Category: Triazoles.

Let¡¯s face it, organic chemistry can seem difficult to learn, COA of Formula: C6H12O2, Especially from a beginner¡¯s point of view. Like 556-48-9, Name is Cyclohexane-1,4-diol, molecular formula is Triazoles, belongs to Triazoles compound. In a document, author is Fang, Xiao-Dan, introducing its new discovery.

A luminescent zinc-organic framework as bifunctional chemosensors for detection of nitrobenzene and Fe3+

A luminescent zinc metal-organic framework with uncoordinated triazolate N-donors, namely [Zn (tba)(2)]center dot DMA (1, DMA = N,N-dimethylacetamide), has been successfully synthesized under solvothermal conditions by using a triazolate-carboxylate bifunctional ligand, 4-(1H-1,2,4-triazol-1-yl)ebenzoic acid (Htba). Single-crystal X-ray diffraction analysis reveals that compound 1 displays a 4-fold interpenetrating dia framework with 1D dumbbell-shaped channels. The systematic luminescence experiments reveal that 1 can be potentially used as a fast-response fluorescence sensor for the sensitive detection of nitrobenzene and Fe3+ ion through drastic fluorescence quenching. Moreover, the quenching mechanisms of 1 towards nitrobenzene and Fe3+ were also investigated.

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Related Products of 381-98-6, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 381-98-6, Name is 2-(Trifluoromethyl)propenoic acid, SMILES is OC(=O)C(=C)C(F)(F)F, belongs to Triazoles compound. In a article, author is Jang, Joseph, introduce new discover of the category.

Impact of N-Substituent and pK(a) of Azole Rings on Fuel Cell Performance and Phosphoric Acid Loss

The influence of N-substituent and pK(a) of azole rings has been investigated for the performance of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Imidazole, benzimidazole, and triazole groups were functionalized on the side chains of poly(phenylene oxide), respectively. Each azole group is categorized by their N-substituent into two types: unsubstituted and methyl-substituted azoles. The membranes with methyl-substituted azoles showed higher phosphoric acid (PA) doping levels with an average increase of 20% compared to those with unsubstituted azoles in the full-doped states. However, unsubstituted azoles more effectively improved the proton conductivity and the membrane with unsubstituted imidazole (IMPPO-H) showed a high anhydrous proton conductivity of 153 mS/cm at 150 degrees C. In contrast, the membranes with methyl-substituted azoles showed a higher PA retention with an average increase of 81% compared to those with unsubstituted azoles. The higher PA retention of methyl-substituted azoles also led to the higher fuel cell performance with the maximum increase of 95% in the power density. It was also revealed that higher pK(a) of azoles enhanced the PA retention and the fuel cell performance. Based on the experimental results of PA retention and density functional theory calculations, the PA loss mechanism was also proposed.

Related Products of 381-98-6, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 381-98-6 is helpful to your research.

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 818-61-1, Name is 2-Hydroxyethyl acrylate, formurla is C5H8O3. In a document, author is Li, Chunmei, introducing its new discovery. Application In Synthesis of 2-Hydroxyethyl acrylate.

Dissipation and dietary risk assessment of tristyrylphenol ethoxylate homologues in cucumber after field application

The potential for tristyrylphenol ethoxylates (TSPEOs) residues to contaminate crops or be released into the environment is of increasing concern, as they are toxic to living organisms. This study determined the dissipation of TSPEO homologues in cucumber under field conditions. TSPEOn (n = 6-29) dissipated more rapidly in cucumber than in soil samples, with half-lives of 1.80-4.30 d and 3.73-6.52 d, respectively. Short-chain TSPEOn (n = 6-11) persisted for longer than other oligomers in soil. Concentrations of the final residues (Sigma TSPEOs) in cucumber and soil were 24.3-1349 mu g/kg and 47.3-1337 mu g/kg, respectively. TSP15EO or TSP16EO was the dominant oligomer, with concentrations of 2.30-150 mu g/kg. The risk assessment showed that the acute and chronic dietary exposure risks of Sigma TSPEOs in cucumber were 0.03-0.57% and 0.05-0.39%, respectively, suggesting little or no health risk to Chinese consumers.

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The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 381-98-6, Name is 2-(Trifluoromethyl)propenoic acid, SMILES is OC(=O)C(=C)C(F)(F)F, in an article , author is Qin, Qian, once mentioned of 381-98-6, Formula: C4H3F3O2.

Resorcin[4]arene-based Cu(I) binuclear and mononuclear complexes as efficient catalysts for azide-alkyne cycloaddition reactions

In this study, three fascinating resorcin[4]arene-based Cu(I) complexes, named [CuCl (TPC4R)] (1), [CuBr (TPC4R)] (2), and [Cu2I2(TPC4R)] (3) were prepared by using a pyrimidine-functionalized resorcin[4]arene ligand (TPC4R). In 1 and 2, two Cu(I) ions were linked by two TPC4R and two Cl- (or Br-) anions to form binuclear units. The adjacent units were extended into supramolecular layers through H bonds. In 3, two Cu(I) ions were connected by one TPC4R and two I- anions to form a mononuclear complex. The mononuclear units were connected by hydrogen bonds to produce a supramolecular chain. Significantly, 1 and 2 exhibit high efficiency and universality for azide-alkyne cycloaddition reactions in the synthesis 1,2,3-triazoles and beta-OH-1,2,3-triazoles. It has been found that the amount of catalyst, solvent type and reaction temperature have considerable influences on the activities of catalytic systems. The conversions of catalysts 1 and 2 could reach 99% for most of the selected substrates. It was found that after repeatedly used for 4 times, the catalytic activity of 1 did not decrease apparently.

Interested yet? Read on for other articles about 381-98-6, you can contact me at any time and look forward to more communication. Formula: C4H3F3O2.

Synthetic Route of 1704-62-7, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 1704-62-7, Name is 2-(2-(Dimethylamino)ethoxy)ethanol, SMILES is CN(CCOCCO)C, belongs to Triazoles compound. In a article, author is Zhang, Yandie, introduce new discover of the category.

Two 2p-3d-4f complexes constructed from functionalized nitronyl nitroxides: Synthesis, structure and magnetic properties

Two 2p-3d-4f complexes of [LnCu(hfac)(5)NIT-Ph-p-OCH(2)trz](n) (Ln = Gd (1), Ho (2); NIT-Php-OCH(2)trz = 2-(4-((1H-1,2,4-triazol-1-yl)methoxy)phenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide; hfac = hexafluoroacetylacetonate) have been successfully synthesized through Cu(hfac)(2) and Ln(hfac)(3) reacting with nitronyl nirtroxide radical of NIT-Ph-p-OCH(2)trz. The structures of complexes 1 and 2 were elucidated by single-crystal X-ray structural analysis and the results show that both complexes consist of [Ln-NIT-Ln-NIT](n) one-dimensional chains and the additional Cu ions are coordinated to the nitrogen atoms from the triazole rings of the radical ligands. The ferromagnetic couplings are observed between the coordinated NO group and Ln (III) ions. Ac magnetic susceptibilities indicate that the Ho derivatives displays frequency-dependent out-of-phase signals. (C) 2020 Elsevier B.V. All rights reserved.

Synthetic Route of 1704-62-7, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 1704-62-7 is helpful to your research.