Tag: 100-200

Self-assembled core-shell clusters in deep eutectic solvents based on tetra-n-alkylammonium cations for high dissolution of strongly hydrogen-bonded small molecules was written by Jia, Jianhui;Chen, Jian-Bo;Du, Jianglong;Lian, Cheng;Xu, Silong;Liu, Honglai;Li, Shichun;Liu, Yu. And the article was included in Journal of Colloid and Interface Science in 2022.Name: Tetramethylammonium chloride The following contents are mentioned in the article:

Strongly hydrogen-bonded compounds such as 1,3,5-triamino-2,4,6-trinitrobenzene (TATB, an important insensitive high explosive) have excellent stability, but poor solubilities to limit their recrystallization, purification and recycling. In this study, core-shell clusters based on sym. tetra-n-alkylammonium [TTA]⁺ are designed to provide an inner cavity to incorporate TATB, and thus the clusters can sep. TATB from original hydrogen-bonded networks to increase largely the solubility Based on this design, deep eutectic solvents (DESs) based on [TTA]⁺ cations are first developed to yield self-assembled core-shell clusters for solubilizing TATB. Ninety-nine DESs based on [TTA]⁺ were prepared by combining with halide ions and hydrogen bond donors, and TATB’s solubility increases with the formation of core-shell clusters. Tetra-Bu ammonium ([TBA]⁺)-based DES (CS-1) displays excellent dissolution toward TATB. Room-temperature solubility of TATB in CS-1 with 32.88 mg/mL is about 10 times higher than recently reported ionic liquids and approx. 470 times higher than DMSO. Compared to traditional solvents, CS-1 shows economical and high dissolution ability toward TATB. The dissolution mechanism is demonstrated by exptl. characterizations and theor. calculations After forming Zundel-type complexes between TATB and F^–, the complexes as the core are surrounded by [TBA]⁺ as the shell to yield core-shell clusters through self-assembly of electrostatic interaction. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Name: Tetramethylammonium chloride).

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.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: Tetramethylammonium chloride

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

The fabrication of carboxylic acid-functionalized porous layer open tube column and its application in hydrophilic interaction chromatography for small polar molecules was written by Tang, Shiyun;Duan, Yuanxing;Chang, Feng;Jiang, Wei;Zhang, Fengmei;Liu, Zhihua;Yang, Yuting;Liu, Chunbo;Chen, Yingzhuang. And the article was included in Journal of Liquid Chromatography & Related Technologies in 2020.Application In Synthesis of 4-Chlororesorcinol The following contents are mentioned in the article:

The porous layer open-tube (PLOT) columns, characterized by their considerable sp. surface area and high permeability, have attracted a growing attention from researchers in liquid chromatog. In this work, a hydrophilic PLOT column rich in carboxylic acid functional groups was successfully synthesized in capillary with an inner diameter of 200μm by thermally initiated aqueous two-phase polymerization Methacrylic acid (MAA) areas monomers that responsible for the introduction of polar functional groups, and poly(ethylene glycol) diacrylate (PEGDA) are as cross-linker. The optimized PLOT column has a uniform, moderately thick porous layer, which is tightly bonded to the inner wall without any detachment. The hollow structure gives the PLOT column good permeability, which facilitates fast mass transfer. The systematical evaluations of the resulting PLOT columns were performed by using polar analytes including nucleosides, bases, amides, phenols and carboxylic acids. Those results demonstrated excellent separation performance for the small polar mols. Compared to the poly(PEGDA) PLOT column, the hydrophilic retention of analytes on poly(PEGDA-co-MAA) porous layer open-tube column is significantly improved by the introduction of carboxylic acids. Furthermore, with modified nucleosides and chlorophenols being disease markers and the persistent pollutant of wide concern, resp., the separation was optimized and the linear range of the quant. anal. was examined for both targets. which indicates the potential application of such PLOT column for anal. of real samples. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Application In Synthesis of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) 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. 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.Application In Synthesis of 4-Chlororesorcinol

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

Substitution and addition reactions of ^•OH with p-substituted-phenols was written by Albarran, Guadalupe;Galicia-Jimenez, Eduardo;Mendoza, Edith;Schuler, Robert H.. And the article was included in Radiation Physics and Chemistry in 2017.Product Details of 95-88-5 The following contents are mentioned in the article:

The directing effect of a hydroxyl group on the substitution and addition reactions of ^•OH to the substituted and free positions in aromatic rings of p-substituted-phenols were studied in aqueous solutions containing either K₃Fe(CN)₆ as an oxidant of the substituted hydroxycyclohexadienyl radical initially formed or using ascorbic acid. The results showed that the attack of the ^•OH to the substituted position (ipso position) was followed by elimination of the substituent producing hydroquinone. The addition reaction of the ^•OH to the free position on the ring produced 4-substituent-catechol and 4-substituent-resorcinol derivatives Identification and quantification of the radiolytic products were carried out using high performance liquid chromatog. The results of the yields are given for the p-halogen-phenols (p-X-Ph) p-F-Ph, p-Cl-Ph, p-Br-Ph and p-I-Ph. Other compounds, p-nitro-Ph, p-OH-benzoic acid, p-OH-benzonitrile, p-OH-benzaldehyde, p-OH-anisole and p-OH-benzyl alc. (represented as p-Z-Ph), were only studied using K₃Fe(CN)₆ as the oxidant. The results show that the p-X-Ph are attacked by the ^•OH at the ipso position to the halogen in the proportion 1:0.53:0.46:0.11 for F>Cl>Br>I. The ^•OH attacked at the ipso position to the p-Z-Phs through a substitution reaction, which depended on the substituent group. Thus, the strongly deactivating groups produced less hydroquinone, indicating less substitution reaction than the strongly activating groups. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Product Details 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. 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.Product Details of 95-88-5

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

Thermodynamic Solution Properties of a Biodegradable Chelant (L-glutamic-N,N-diacetic Acid, L-GLDA) and Its Sequestering Ability toward Cd2+ was written by Bretti, Clemente;Di Pietro, Roberto;Cardiano, Paola;Gomez-Laserna, Olivia;Irto, Anna;Lando, Gabriele;De Stefano, Concetta. And the article was included in Molecules in 2021.Related Products of 75-57-0 The following contents are mentioned in the article:

The thermodn. of the interaction of L-glutamic-N,N-diacetic acid (GLDA) with protons was studied potentiometrically at different temperatures, ionic strengths and ionic media. Four protonation constants and corresponding enthalpy changes occurred at infinite dilution together with temperature and ionic strength coefficients The medium effect was also interpreted in terms of the formation of weak complexes between the ligand and the cations of supporting electrolytes, resulting in a greater tendency of GLDA to chem. interact with Na⁺ rather than K⁺ and, in turn, (CH₃)₄N⁺. Formation constants of GLDA with Cd²⁺ were determined in NaCl(aq) at different ionic strength values. Five complex species were found, namely CdL^2-, CdHL^–, Cd₂L⁰(aq), Cd₂L⁰(aq), and Cd(OH)L^3-, whose formation constant values at infinite dilution were log β = 12.68, 17.61, 20.76, 17.52, and 1.77, resp. All the species results were relevant in the pH range of natural waters, although the Cd₂L⁰(aq) was observed only for C_Cd ≥ C_GLDA and concentrations of >0.1 mmol dm^-3. The sequestering ability of GLDA toward Cd²⁺, evaluated by means of pL₀.₅, was maximum at pH 10, whereas the presence of a chloride containing a supporting electrolyte exerted a neg. effect. Among new generation biodegradable ligands, GLDA was the most efficient in Cd²⁺ sequestration. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Related Products of 75-57-0).

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. 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 75-57-0

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

A comparison study on the performance between Tetrametylammonium chloride and PolyvinylPyrrolidone as drilling mud additives for gas hydrates was written by Yuha, Yasmine Binti Md;Lal, Bhajan;Bavoh, Cornelius Borecho;Keong, Lau Kok. And the article was included in Materials Today: Proceedings in 2021.COA of Formula: C4H12ClN The following contents are mentioned in the article:

The utilization of ionic liquids as additives in mud system to improve the rheol. properties for drilling hydrate sediments has received much attention recently. However, their performance needs to be compared with com. inhibitors to effectively enhance their replacement process. Therefore, in this work, the effect of one of the best reports ionic liquid, Tetrametylammonium chloride (TMACl) was used for hydrate management in the drilling process and was compared with PolyvinylPyrrolidone (PVP -a com. hydrate additive). The experiments were achieved by formulating drilling fluid with the compositions of freshwater, 3.0 wt% NaCl, 3.0 wt% KCl and 0.8 wt% Xanthan Gum and 1 wt% of TMACl/PVP, and verifying the rheol., physiochem., and hydrate inhibition properties of the mud system prepared A kinetic hydrate reactor is used to examine the hydrate inhibition properties at 8 MPa and -2°C and a TA instrument rheometer DHR1 was used to study the rheol. properties of the mud systems prepared The results showed that TMACl stabilized drilling mud thermal degradation by 400%, which PVP doubles the thermal degradation rate of drilling mud. In addition, TMACl could provide suitable shear thinning behavior than PVP. Though the effect of both PVP and TMACl on the CH₄ hydrate formed is within the same range, PVP delayed the time taken for hydrate formation by 25% from TMACl. Therefore, the findings in this study provided guidelines and information to the successful application and replacement of conventional hydrate inhibitions with ionic liquids This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0COA of Formula: C4H12ClN).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.COA of Formula: C4H12ClN

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

A Ratiometric and Targetable Fluorescent Sensor for Quantification of Mitochondrial Zinc Ions was written by Xue, Lin;Li, Guoping;Yu, Cailan;Jiang, Hua. And the article was included in Chemistry – A European Journal in 2012.Name: 1-Bromo-6-chlorohexane The following contents are mentioned in the article:

The authors designed a fluorescent sensor, DQZn2 (I), for ratiometric detection of mitochondrial Zn²⁺. 2-Picolylamine (DPA) was employed as an ion chelator that was installed on the 2-position of a quinoline platform to achieve high selectivity for Zn²⁺ over biol. Na⁺, K⁺, Ca²⁺, and Mg²⁺ with 1:1 stoichiometry and high affinity with nanomolar or lower K_a values. To increase basicity of the sensor, the stronger electron donating nitrogen atom replaced the oxygen atom on 4-position of quinoline. The authors anticipated that this sensor could be protonated under neutral or even weakly basic media, and consequently would yield a resonance between quinolinium and onium resonant structures as observed for DQCd1. The resonance would lead to charge delocalization, which is more pronounced in the excited state of the mol., due to occurrence of intramol. charge transfer (ICT) in polar media. The authors envisioned that Zn²⁺ coordination would induce the deprotonation of the sensor and consequent inhibition of the resonance. The ratiometric measurements with distinct emission maxima shift can thus be established. Mitochondria are known to be one of sites that take up Zn²⁺ in living cells. The triphenylphosphonium salt (TPP), an effective mitochondrial targeting group, was thus chosen and attached to the sensor. This ratiometric approach was used for quantification of the mitochondrial free Zn²⁺ concentration in NIH3T3 cells. 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. 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Name: 1-Bromo-6-chlorohexane

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

Effect of LCFeCr Alloy Additions on the Non-metallic Inclusion Characteristics in Ti-Containing Ferritic Stainless Steel was written by Wang, Yong;Oh, Min Kyo;Kim, Tae Sung;Karasev, Andrey;Mu, Wangzhong;Park, Joo Hyun;Joensson, Paer G.. And the article was included in Metallurgical and Materials Transactions B in 2021.Synthetic Route of C4H12ClN The following contents are mentioned in the article:

The influence of com. low carbon ferrochromium (LCFeCr) additions on the inclusion characteristics in Ti-containing ferritic stainless steel was studied by laboratory experiment in this work. The inclusions in steel before and after the FeCr alloy additions were investigated through systematic samplings and microscopy investigations of the liquid steel. Different types of inclusions in the FeCr alloy and steel were detected and the evolution of the inclusion characteristics (e.g., composition, size, morphol., and number d.) were investigated. The results showed that the Ti content decreased after the FeCr alloy additions Furthermore, MnCr₂O₄ spinel inclusions originating from the FeCr alloys transformed into Ti₂O₃-Cr₂O₃-based liquid inclusions and Ti₂O₃-rich solid inclusions. They were formed due to the reactions between MnCr₂O₄ and TiN inclusions or dissolved Ti in molten steel. The ratio of Ti/Al in the steel melt has a direct influence on the evolution of inclusions from thermodn. calculations The addition of FeCr alloys caused an increased number d. of these Ti₂O₃-containing inclusions and TiN inclusions up to 8 min from the time of alloy addition The increased Cr content from 16 to 24 mass pct due to the FeCr additions can increase the critical N content to form TiN inclusions at a specific Ti content. Overall, this study has contributed to the understanding the behavior of inclusions from LCFeCr alloy during the alloying process in Ti-containing steel. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Synthetic Route of C4H12ClN).

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. 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).Synthetic Route of C4H12ClN

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

Ethylenic conjugated coumarin thiazolidinediones as new efficient antimicrobial modulators against clinical methicillin-resistant Staphylococcus aureus was written by Hu, Chun-Fang;Zhang, Peng-Li;Sui, Yan-Fei;Lv, Jing-Song;Ansari, Mohammad Fawad;Battini, Narsaiah;Li, Shuo;Zhou, Cheng-He;Geng, Rong-Xia. And the article was included in Bioorganic Chemistry in 2020.Name: Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

Ethylenic conjugated coumarin thiazolidinediones as potential multi-targeting new antimicrobial compounds I [R¹ = H, Me; R² = H, Et, CH₂HC=CH₂, 4-FC₆H₄CH₂, etc.; R³ = H, CH₂HC=CH₂, CH₂C≡CH] were synthesized through convenient procedures from com. available resorcinol and were evaluated for their antimicrobial potency. Bioactive evaluation revealed that some of the prepared compounds I showed strong antimicrobial activities toward the tested microorganisms including clin. drug-resistant strains. Especially, propargyl derivative I [R¹ = Me; R² = CH₂C≡CH; R³ = H] exhibited effective anti-MRSA potency with MIC value of 0.006μmol/mL, which was highly advantageous over clin. antibacterial drug norfloxacin. Compound I [R¹ = Me; R² = CH₂C≡CH; R³ = H] showed rapid killing effect, low toxicity against hepatocyte LO2 cell line and no obvious drug resistance development against MRSA. Preliminary exploration of action mechanism manifested that compd I [R¹ = Me; R² = CH₂C≡CH; R³ = H] acted upon MRSA through forming stable supramol. complex with bacterial DNA which might impede DNA replication. Mol. docking showed that compound I [R¹ = Me; R² = CH₂C≡CH; R³ = H] could bind with DNA-gyrase through hydrogen bonds. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Name: Ethyl 4-chloro-3-oxobutanoate).

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.Name: Ethyl 4-chloro-3-oxobutanoate

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

New carvacrol and thymol derivatives as potential insecticides: synthesis, biological activity, computational studies and nanoencapsulation was written by Natal, Carolina M.;Fernandes, Maria Jose G.;Pinto, Nuno F. S.;Pereira, Renato B.;Vieira, Tatiana F.;Rodrigues, Ana Rita O.;Pereira, David M.;Sousa, Sergio F.;Fortes, A. Gil;Castanheira, Elisabete M. S.;T. Goncalves, M. Sameiro. And the article was included in RSC Advances in 2021.Electric Literature of C6H9ClO3 The following contents are mentioned in the article:

New compounds with potential insecticide activity were synthesized by structural modifications performed in the monoterpenoid phenolic moieties of carvacrol and thymol, resulting in a set of derivatives with the ether function containing the Pr, chloropropyl or hydroxypropyl chains, as well as a bicyclic ether with an unsaturated chain containing a carboxylic acid terminal. In addition, an analog of carvacrol and thymol isomers bearing methoxyl, 1-hydroxyethyl and (3-chlorobenzoyl)oxy, instead of the three original Me groups, was also synthesized. Several structural changes that resulted in diminished insecticide activity have been identified, but two significantly active mols. have been synthesized, one of them being less toxic to human cells than the naturally-derived starting materials. Structure-based inverted virtual screening and mol. dynamics simulations demonstrate that these active mols. likely target the insect odorant binding proteins and/or acetylcholinesterase and are able to form stable complexes. For the most promising compounds, nanoencapsulation assays were carried out in liposomes of egg phosphatidylcholine/cholesterol (7 : 3) prepared by both thin film hydration and ethanolic injection methods. The compound-loaded liposomes were generally monodisperse and with sizes smaller than or around 200 nm. The thin film hydration method allowed high encapsulation efficiencies (above 85%) for both compounds and a delayed release, while for the systems prepared by ethanolic injection the encapsulation efficiency is lower than 50%, but the release is almost complete in two days. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Electric Literature of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Electric Literature of C6H9ClO3

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

Modification of nano-clays with ionic liquids for the removal of Cd (II) ion from aqueous phase was written by Naderi, Arman;Delavar, Mohmmad Amir;Ghorbani, Yousef;Kaboudin, Babak;Hosseini, Mehdi. And the article was included in Applied Clay Science in 2018.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

The present study attempts to synthesize nano-modified clays of Na-bentonite (Bent) and montmorillonite (MT), using three imidazolium-based ionic liquids (ILs) including 3,3′-(hexyl)bis(3-methylimidazolium) bromide chloride (H(mim)₂[Br][Cl]), 1-hexyl-3-methylimidazolium chloride ([Hmim][Cl]) and 1-octyl-3-methylimidazolium chloride ([Omim][Cl]). X-ray diffraction (XRD), Fourier transformed IR spectroscopy (FT-IR), carbon, hydrogen and nitrogen elemental anal. (CHN), scanning electron microscope (SEM) and sp. surface area (SSA) (using N₂-BET) techniques provided evidence of successful modification of the guest clays. Removal of Cd (II) from aqueous phase was investigated using the modified clays under different exptl. conditions of reaction time, pH and adsorbent dosage. Detailed isotherms and kinetic studies showed that the modified clays have much higher Cd (II) adsorption capacity compared to those of the starting clay minerals. The maximum Cd (II) absorption capacities of 87.46 and 94.6mg g^-1 were observed in [H(mim)₂]-MT and [H(mim)₂]-Bent with d-values of 35.4Å and 28.3Å resp. The [Omim]-clays had the highest adsorption affinities of Cd (II) in initial concentrations of Cd (II). This study shows that ILs could enhance the clay capacity and tendency for Cd (II) absorption with different trends based on the ILs structures. The modified clays using ILs are green and eco-friendly adsorbents and due to substantial increase in their capacity for the removal of heavy metals, they could have pos. economic and environmental impacts. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Category: chlorides-buliding-blocks).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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. 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).Category: chlorides-buliding-blocks

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