Tag: 100-200

Benzophenone-based derivatives: a novel series of potent and selective dual inhibitors of acetylcholinesterase and acetylcholinesterase-induced beta-amyloid aggregation was written by Belluti, Federica;Bartolini, Manuela;Bottegoni, Giovanni;Bisi, Alessandra;Cavalli, Andrea;Andrisano, Vincenza;Rampa, Angela. And the article was included in European Journal of Medicinal Chemistry in 2011.Name: 1-Bromo-6-chlorohexane The following contents are mentioned in the article:

The leading mechanistic theory of Alzheimer’s disease (AD) is the “amyloid hypothesis” which states that the accumulation of the amyloid β protein (Aβ), and its subsequent aggregation into plaques, is responsible for the initiation of a cascade of events resulting in neurodegeneration and dementia. The anti-amyloid disease-modifying approach, based on the decrease in the production of Aβ, gained thus a paramount importance. The aim of this study was the design and synthesis of a new series of acetylcholinesterase inhibitors (AChEIs) endowed with anti-Aβ aggregating capability. These dual binding inhibitors, being able to interact both with the peripheral anionic site (PAS) of AChE and the catalytic subsite, proved to be able to inhibit the AChE-induced Aβ aggregation. Thus, starting from the lead compound I, an AChEI composed by a benzophenone scaffold and a N,N-methylbenzylamino group, a substantial modification aimed at targeting the PAS was performed. To this aim, different amino-terminal side chains were incorporated into this main framework, in order to mimic the diethylmethylammonium alkyl moiety of the pure PAS ligand propidium. The synthesized compounds proved to effectively and selectively inhibit AChE. Moreover, compounds with a propoxy and a hexyloxy tether resp., showed a good activity against the AChE-induced Aβ aggregation. In particular, mol. modeling studies confirmed that compounds carrying the diethylaminopropoxy and the diethylaminohexyloxy side chains (compounds II (n = 3, 7), resp.) could suitably contact the PAS pocket of the enzyme. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Name: 1-Bromo-6-chlorohexane).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Name: 1-Bromo-6-chlorohexane

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and biological evaluation of some coumarin hybrids as selective carbonic anhydrase IX and XII inhibitors was written by Thacker, Pavitra S.;Sridhar Goud, Nerella;Argulwar, Omkar S.;Soman, Jyothsna;Angeli, Andrea;Alvala, Mallika;Arifuddin, Mohammed;Supuran, Claudiu T.. And the article was included in Bioorganic Chemistry in 2020.Synthetic Route of C6H9ClO3 The following contents are mentioned in the article:

Two series, coumarin-linked to thiazolidinone via a pyrazole linker I [R = H, 3-Me, 4-Cl, etc.] and coumarin-linked 1,2,3-triazoles II [R¹ = H, 4-MeO, 3-Cl, etc.] were synthesized and were subjected for evaluation against the four physiol. and pharmacol. relevant hCA isoforms, hCA I, II, IX and XII. The results indicated selective inhibition of tumor-associated isoforms hCA IX and XII over the off-target isoforms, hCA I and II. The compounds I exhibited better hCA IX inhibition compared to hCA XII, with compounds I [R = 3-Me, 3-F₃C, 4-Me, 4-MeO] exhibited notable K_i values of less than 100 nM. Among all the compounds, compound I [R = 3-Me] showed the best inhibition with a K_i value of 61.5 nM. Among the compounds of II, compounds II [R¹ = H, 4-O₂N, 2,5-di-Cl, 4-CN, 4-Me, 3-Cl] exhibited notable hCA IX inhibition. Compound II [R¹ = 4-CN] showed the best inhibition with a K_i value of 32.7 nM. In the case of hCA XII, compound II [R¹ = 4-MeO] showed the best inhibition with a K_i value of 84.2 nM. Hence, compound I [R = 3-Me] and II [R¹ = 4-CN] could be taken as lead compounds for the further development of selective and potent hCA IX inhibitors, whereas the compound II [R¹ = 4-MeO] can be explored further for the design of selective and potent hCA XII inhibitors. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Synthetic Route of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Synthetic Route of C6H9ClO3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Imaging Ca²⁺ with a Fluorescent Rhodol was written by Contractor, Alisha A.;Miller, Evan W.. And the article was included in Biochemistry in 2018.Related Products of 95-88-5 The following contents are mentioned in the article:

Ca²⁺ mediates a host of biochem. and biophys. signaling processes in cells. The development of synthetic, Ca²⁺-sensitive fluorophores has played an instrumental role in the authors’ understanding of the temporal and spatial dynamics of Ca²⁺. Coupling Ca²⁺-selective ligands to fluorescent reporters provided a wealth of excellent indicators that span the visible excitation and emission spectrum and possess Ca²⁺ affinities suited to a variety of cellular contexts. One underdeveloped area is the use of hybrid rhodamine/fluorescein fluorophores, or rhodols, in the context of Ca²⁺ sensing. Rhodols are bright and photostable and have good two-photon absorption cross sections (σ_TPA), making them excellent candidates for incorporation into Ca²⁺-sensing scaffolds. Here, the authors present the design, synthesis, and application of rhodol Ca²⁺ sensor 1 (RCS-1) (I), a chlorinated pyrrolidine-based rhodol. RCS-1 possesses a Ca²⁺ binding constant of 240 nM and a 10-fold turn response to Ca²⁺. RCS-1 effectively absorbs IR light and has a σ_TPA of 76 GM at 840 nm, 3-fold greater than that of its fluorescein-based counterpart. The acetoxy-Me ester of I stains the cytosol of live cells, enabling observation of Ca²⁺ fluctuations and cultured neurons using both one- and two-photon illumination. Together, these results demonstrate the utility of rhodol-based scaffolds for Ca²⁺ sensing using two-photon illumination in neurons. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Related Products of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Related Products of 95-88-5

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Separating boundary potential changes at thin solid contact ion transfer voltammetric membrane electrodes was written by Mao, Canwei;Yuan, Dajing;Wang, Lu;Bakker, Eric. And the article was included in Journal of Electroanalytical Chemistry in 2021.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Thin ion-selective membrane films deposited on solid electrode substrate are useful tools to study ion transfer processes. This is because the exptl. conditions may be chosen such that diffusion processes within the membrane and contacting aqueous solution are not rate limiting. In an ideal case, therefore, equilibrium considerations may be used to describe the resulting ion transfer voltammograms. For example, the electrochem. oxidation of an elec. neutral redox mol. in the membrane results in a cationic oxidized form. To preserve electroneutrality, a cation is transferred out of the membrane into solution, freeing the cation-exchanger of the membrane to become the counterion of the oxidized redox mol. This work describes a model system that agrees well with thermodn. theory, using the lipophilic (1-dodecyl-1H-1,2,3-triazol-4-yl)ferrocene as redox mol. and a monovalent reference cation for ion transfer. The full peak width at half maximum was found as 0.110 V, in agreement with theory, and with peak current proportional to scan rate supporting thin layer behavior. The charge passed during the voltammetric scan was related to ion-exchanger concentration available for ion extraction as a function of potential. Subtraction of the ion transfer potential using the reference ion from the exptl. one for each charge increment gave the potential change for the electrochem. ion-to-electron transducer. In one application, the potential change of the polymeric transducing layer poly(3-octylthiophene) (POT) film upon electrochem. oxidation within the membrane was characterized. A nonlinear potential-charge curve was observed, in contrast to earlier assumptions. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Category: chlorides-buliding-blocks).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Morphological tuning of membrane processing by temporal proton-metal cation substitution in perfluorosulfonic acid membranes was written by Vetter, Kim-Marie;Reichbauer, Thomas;Martic, Nemanja;Reinisch, David;Hinrichsen, Olaf;Schmid, Guenter. And the article was included in Electrochimica Acta in 2020.Computed Properties of C4H12ClN The following contents are mentioned in the article:

The authors studied how the exchange of the countercation in perfluorosulfonic acid (PFSA) membranes influences 1st their processability and secondly their electrochem. performance in H₂O electrolysis. Cation-exchanged membranes were prepared (Li⁺, Na⁺, K⁺, Mg²⁺, Zn²⁺, Ca²⁺, tetra-Me ammonium [TMA⁺], tetra-Bu ammonium [TBA⁺]) and their glass transition temperatures (T_g) were assessed by dynamic mech. anal. (DMA). A good correlation between the found T_g values and the processability of the membranes was found, imitating an industrial membrane electrode assembly (MEA) fabrication process. Li⁺, TBA⁺ and Zn²⁺ MEAs were electrochem. characterized in H₂O electrolysis. Cyclic voltammetry (CV) polarization studies were performed to study initial effects of ion exchange based on the binding energies of the resp. metal cation incorporated into the membrane. Impedance spectroscopy was used to measure membrane resistances during H₂O electrolysis. Potentiostatic and galvanostatic experiments were employed to differentiate between initial and permanent effects, the latter arising from stable structural arrangements of the polymer side chains. In-situ potential-driven substitution (PDS) of the metal ions by protons is quant. for Li⁺. At 1.5 A/cm² the rate of PDS was 0.2 mmol/cm² per min. However, morphol. changes in the membrane remained, opening the possibility for morphol. tuning of membrane fabrication by temporal proton-metal cation substitution. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Computed Properties of C4H12ClN).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Computed Properties of C4H12ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Syntheses, Molecular Structures, and Countercation-Induced Structural Transformation of Monomeric α-Keggin-Type Polyoxotungstate-Coordinated Mono- and Dipalladium(II) Complexes was written by Kato, Chika Nozaki;Nakahira, Ippo;Kasai, Ryota;Mori, Shigeki. And the article was included in European Journal of Inorganic Chemistry in 2021.Recommanded Product: Tetramethylammonium chloride The following contents are mentioned in the article:

Monomeric α-Keggin-type polyoxotungstate-coordinated mono- and di-palladium(II) complexes, i. e., Cs₅[α-PW₁₁O₃₉{Pd^II(Me₂ppz)}]·5H₂O (Cs-1) (Me₂ppz = N,N’-dimethylpiperazine), [(CH₃)₄N]₄H[α-PW₁₁O₃₉{Pd^II(Me₂ppz)}]·8H₂O (TMA-1), and Cs_2.5H_0.5[α-PW₁₁O₃₉{Pd^II(en)}₂]·7H₂O (en = ethylenediamine) (Cs-2), were synthesized by 1 : 1 or 1 : 2 stoichiometric reactions of mono-lacunary α-Keggin polyoxotungstate [α-PW₁₁O₃₉]^7- with PdCl₂(Me₂ppz) and PdCl₂(en) in aqueous solution Subsequent purification from water afforded these compounds as anal. pure homogeneous yellow precipitates Single-crystal x-ray structural anal. of Cs-1 revealed that a palladium(II) moiety, i. e., [Pd(Me₂ppz)]²⁺, was coordinated to two oxygen atoms in the mono-vacant site of [PW₁₁O₃₉]^7- with an asym. configuration, resulting in an overall C₁ symmetry. With regard to the crystal structure of Cs-2, two palladium species of the [Pd(en)]²⁺ type were coordinated to two oxygen atoms in the mono-vacant site with sym. configuration, resulting in an overall C_s symmetry. A unique structural transformation of the mono-lacunary α-Keggin structure of Cs-1 to the di-lacunary γ-Keggin polyoxotungstate Cs₇[γ-PW₁₀O₃₆] was observed upon the addition of cesium chloride. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Recommanded Product: Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Recommanded Product: Tetramethylammonium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Modulation of the optical bandgap and photoluminescence quantum yield in pnictogen (Sb³⁺/Bi³⁺)-doped organic-inorganic tin(IV) perovskite single crystals and nanocrystals was written by Ba, Qiankai;Kim, Junu;Im, Hyunsik;Lin, Shenghuang;Jana, Atanu. And the article was included in Journal of Colloid and Interface Science in 2022.Product Details of 75-57-0 The following contents are mentioned in the article:

Water-stable, lead-free zero-dimensional (0D) organic-inorganic hybrid colloidal tin(IV) perovskite, A₂SnX₆ (A is a monocationic organic ion and X is a halide) nanocrystals (NCs) with high photoluminescence (PL) quantum yield (QY) have rarely been explored. Herein, we report solution-processed colloidal NCs of blue light-emitting T₂SnCl₆ and orange light-emitting T₂Sn_1-xSb_xCl₆ [T+ = tetramethylammonium cation] from their corresponding single crystals (SCs). These colloidal NCs are well-dispersible in non-polar solvents, thereby maintaining their bright emission. This paves the way for fabricating homogeneous thin films of these NCs. Due to organic cation (T⁺)-controlled large spin-orbit coupling (SOC), the T₂Sn_1-xSb_xCl₆ NCs exhibit bright orange emission with an enhancement in PL QY of 41% compared to their bulk counterpart. Furthermore, we explore T₂Sn_1-xBi_xCl₆ and T₂Sn_1-x-yBi_xSb_yCl6 SCs, which show blue and green emission, resp.; the latter is attributed to the newly formed Sb 5p and Sb 5 s orbital-driven band structures confirmed by applying d. functional theory (DFT) calculations The SCs and NCs exhibit excellent stability in water under ambient conditions because of the in-situ generation of a hydrophobic and oxygen-resistant passivating layer of oxychloride in the presence of water. Our findings open a pathway for designing lead-free perovskites materials for thin-film-based optoelectronic devices. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Product Details of 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Product Details of 75-57-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Application of a fluidized three-dimensional electrochemical reactor with Ti/SnO₂-Sb/β-PbO₂ anode and granular activated carbon particles for degradation and mineralization of 2,4-dichlorophenol: Process optimization and degradation pathway was written by Samarghandi, Mohammad Reza;Dargahi, Abdollah;Rahmani, Alireza;Shabanloo, Amir;Ansari, Amin;Nematollahi, Davood. And the article was included in Chemosphere in 2021.Related Products of 95-88-5 The following contents are mentioned in the article:

A three-dimensional electrochem. reactor with Ti/SnO2-Sb/β-PbO2 anode and granular activated carbon (3DER-GAC) particle electrodes were used for degradation of 2,4-dichlorophenol (2,4-DCP). Process modeling and optimization were performed using an orthogonal central composite design (OCCD) and genetic algorithm (GA), resp. Ti/SnO2-Sb/β-PbO2 anode was prepared by electrochem. deposition method and then its properties were studied by FESEM, EDX, XRD, Linear sweep voltammetry and accelerated lifetime test techniques. The results showed that lead oxide was precipitated as highly compact pyramidal clusters in the form of β-PbO2 on the electrode surface. In addition, the prepared anode had high stability (170 h) and oxygen evolution potential (2.32 V). A robust quadratic model (p-value < 0.0001 and R2 > 0.99) was developed to predict the 2,4-DCP removal efficiency in the 3DER-GAC system. Under optimal conditions (pH = 4.98, Na2SO4 concentration = 0.07 M, c.d. = 35 mA cm^-2, GAC amount = 25 g and reaction time = 50 min), the removal efficiency of 2,4-DCP in the 3DER-GAC system and the sep. electrochem. degradation process (without GAC particle electrode) were 99.8 and 71%, resp. At a reaction time of 80 min, the TOC removal efficiencies in the 3DER-GAC and the sep. electrochem. degradation system were 100 and 57.5%, resp. Accordingly, the energy consumed in these two systems was calculated to be 0.81 and 1.57 kWh g-1 TOC, resp. Based on the results of LC-MS anal., possible degradation pathways of 2,4-DCP were proposed. Trimerization and ring opening reactions were the two dominant mechanisms in 2,4-DCP degradation This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Related Products of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Related Products of 95-88-5

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

QSAR modeling of algal low level toxicity values of different phenol and aniline derivatives using 2D descriptors was written by Seth, Arnab;Roy, Kunal. And the article was included in Aquatic Toxicology in 2020.Quality Control of 4-Chlororesorcinol The following contents are mentioned in the article:

The deposition of different types of phenol and aniline derivatives in the aquatic environment leads to toxicity to living organisms. Under such condition, evaluation of these toxicants is very much important. Due to non-availability of sufficient exptl. data as well as sufficient number of Quant. Structure-Activity Relationship (QSAR) models for the low level toxicity values for such pollutants, we have employed here the partial least squares (PLS) regression for the development of robust and predictive QSAR models using low level toxicity values against algal species. Here, we have used both Extended Topochem. Atom (ETA) and non-ETA indexes as 2D descriptors for model development. The statistical validation parameters ensure the robustness and the predictivity of the developed models. From the insights of the final PLS models, it can be concluded that presence of nitro groups (in the ortho position to phenolic hydroxyl group increasing intramol. hydrogen bonding capacity), presence of chlorine substituents (influencing lipophilicity) especially at the para position, oxygen and nitrogen at the topol. distance three, aliphatic side chain (contributing to hydrophobicity), mols. with large size atoms and higher mol. bulk will increase the toxicity towards the algal species. On the other hand, the phenol ring without any substituent or with a polar substituent (like amino group), presence of chlorine at ortho-ortho or ortho-para position, absence of nitro group, presence of chlorine and oxygen at the topol. distance three, presence of lower number of aliphatic groups will decrease the toxic effect towards the algal species. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Quality Control of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of 4-Chlororesorcinol

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Development of quantitative structure-property relationship to predict the viscosity of deep eutectic solvent for CO₂ capture using molecular descriptor was written by Adi Kurnia, Kiki;Zunita, Megawati;A. P. Coutinho, Joao;Gede Wenten, I.;Santoso, Djoko. And the article was included in Journal of Molecular Liquids in 2022.HPLC of Formula: 75-57-0 The following contents are mentioned in the article:

Transport properties of deep eutectic solvent (DES), such as viscosity, are essential for selecting and designing processes based on these ”green solvents” for CO₂ capture and separation Although exptl. values for the viscosity of DES are available for a large number of systems, the number of potential hydrogen bond acceptors and hydrogen bond donors to form eutectic mixtures make the exptl. characterization and screening of these systems impractical. A computational method able to predict the viscosity of DES would be highly valuable. The present study is aimed to develop a method to predict the viscosity of DESs using interaction energy descriptors derived from Conductor like Screening Model for Real Solvent (COSMO-RS). The stepwise multiple linear regression was implemented to select the optimal number of mol. descriptors and temperature based on an extensive database covering 947 viscosity data points for a wide range of DESs. The new model showed a good correlation between exptl. and predicted values, with R-squared (R²) and average absolute relative deviation (AARD) of 0.9734 and 15.22%, resp., for the overall dataset. In addition, the model showed that the viscosity of DES was significantly influenced by the hydrogen bonding between the anion of the hydrogen bond acceptor and the hydrogen bond donor mols. The electrostatic-misfit and van der Waals forces were shown to have a marginal impact on the viscosities. In conclusion, the developed model provides an effective tool to predict the viscosity of DES and allows a fundamental understanding of the mol. level interactions on this property. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0HPLC of Formula: 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.HPLC of Formula: 75-57-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics