Month: November 2022

A Dual Functional Electroactive and Fluorescent Probe for Coupled Measurements of Vesicular Exocytosis with High Spatial and Temporal Resolution was written by Liu, Xiaoqing;Savy, Alexandra;Maurin, Sylvie;Grimaud, Laurence;Darchen, Francois;Quinton, Damien;Labbe, Eric;Buriez, Olivier;Delacotte, Jerome;Lemaitre, Frederic;Guille-Collignon, Manon. And the article was included in Angewandte Chemie, International Edition in 2017.Safety of 4-Chlororesorcinol The following contents are mentioned in the article:

In this work, Fluorescent False Neurotransmitter 102 (FFN102), a synthesized analog of biogenic neurotransmitters, was demonstrated to show both pH-dependent fluorescence and electroactivity. To study secretory behaviors at the single-vesicle level, FFN102 was employed as a new fluorescent/electroactive dual probe in a coupled technique (amperometry and total internal reflection fluorescence microscopy (TIRFM)). We used N13 cells, a stable clone of BON cells, to specifically accumulate FFN102 into their secretory vesicles, and then optical and electrochem. measurements of vesicular exocytosis were exptl. achieved by using indium tin oxide (ITO) transparent electrodes. Upon stimulation, FFN102 started to diffuse out from the acidic intravesicular microenvironment to the neutral extracellular space, leading to fluorescent emissions and to the electrochem. oxidation signals that were simultaneously collected from the ITO electrode surface. The correlation of fluorescence and amperometric signals resulting from the FFN102 probe allows real-time monitoring of single exocytotic events with both high spatial and temporal resolution This work opens new possibilities in the investigation of exocytotic mechanisms. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Safety of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Safety of 4-Chlororesorcinol

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

Improved Production of 5-Hydroxymethylfurfural in Acidic Deep Eutectic Solvents Using Microwave-Assisted Reactions was written by Morais, Eduarda S.;Freire, Mara G.;Freire, Carmen S. R.;Silvestre, Armando J. D.. And the article was included in International Journal of Molecular Sciences in 2022.Application In Synthesis of Tetramethylammonium chloride The following contents are mentioned in the article:

Hydroxymethylfurfural (5-HMF) is a key platform chem., essential for the production of other chems., as well as fuels. Despite its importance, the production methods applied so far still lack in sustainability. In this work, acidic deep eutectic solvents (DES), acting both as solvent and catalyst, were studied for the conversion of fructose into 5-HMF using microwave-assisted reactions. These solvents were screened and optimized by varying the hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA). The bio-based solvent γ-valerolactone (GVL) was also applied as additive, leading to a boost in 5-HMF yield. Then, a response surface methodol. was applied to further optimize operating conditions, such as reaction time, temperature and weight% of added GVL. The highest 5-HMF yield attained, after optimization, was 82.4% at 130°C, in 4 min of reaction time and with the addition of 10 weight% of GVL. Moreover, a process for 5-HMF recovery and DES reuse was developed through the use of the bio-based solvent 2-methyltetrahydrofuran (2-Me-THF), allowing at least three cycles of 5-HMF production with minimal yield losses, while maintaining the purity of the isolated 5-HMF and the efficacy of the reaction media. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Application In Synthesis of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. 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.Application In Synthesis of Tetramethylammonium chloride

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

Studies on the synthesis, surface activity and the ability to form pH-regulated wormlike micelles with surfactant containing carboxyl group was written by Yan, Zhihu;Qian, Feng;Sun, Haonan;Lu, Xia;Li, Yu;Lv, Haibin;Dai, Caili;Jiao, Minglian. And the article was included in Journal of Molecular Liquids in 2020.Application of 122-18-9 The following contents are mentioned in the article:

In this article, a series of pH regulated surfactants with different hydrophobic chain length and carboxyl group mol. structure positions were designed and synthesized. The mol. structure of pH regulated surfactants was analyzed by mass spectrometry and ¹H NMR spectroscopy. The results of the surface activity test show that the pH regulated surfactants have lower surface tension, which indicates that it is easier to adsorb directionally at the gas-liquid interface and to aggregate in solution Both inorganic and organic counterions can improve the viscosity of the system to some extent, but the viscosity-increasing ability of organic counterions is much higher than that of inorganic counterions. The results of rheol. and dynamic light scattering show the transition from spherical micelles to wormlike micelles was observed when pH increased from 5 to 8 in the Docos-13-enoylamino-acetic acid (Gly-22)/Trimethylstearylammonium chioride (ODAC) system. The results of Cryo-transmission electron microscopy verify this result directly. Also, the exptl. results show that the Gly-22/ODAC system has excellent pH cycle regulation performance, which can significantly reduce the application cost of the system. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Application of 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. 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).Application of 122-18-9

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

Structural investigations of three triazines: Solution-state NMR studies of internal rotation and structural information from solid-state NMR, plus a full structure determination from powder X-ray diffraction in one case was written by Birkett, Helen E.;Cherryman, Julian C.;Chippendale, A. Margaret;Evans, John S. O.;Harris, Robin K.;James, Mark;King, Ian J.;McPherson, Graham J.. And the article was included in Magnetic Resonance in Chemistry in 2003.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Three model 2,4,6-tris(amino)-1,3,5-triazines, structurally related to a dyestuff mol. previously studied by NMR, were synthesized in order to enable the effects of rotamer exchange on the NMR spectra to be investigated in more detail. Two of the compounds are novel. Internal rotation of the triazine ring substituents was studied by variable-temperature solution-state ¹H, ¹³C and ¹⁵N NMR spectroscopy. All the expected rotamers were detected for each mol. Rotamer exchange rates varied from slow to fast over the temperature range -40 to 90°C, as observed for the dyestuff mol. itself. Solid-state ¹³C and ¹⁵N NMR provided information about the structures of the solid mols. A full crystal structure determination from high-resolution powder x-ray diffraction was achieved for one of the mols. using simulated annealing techniques. Ab initio MO and ¹⁵N NMR chem. shift calculations, based on energy-minimized structures derived from the x-ray structure determination, enabled the effect of intermol. hydrogen bonding on the ¹⁵N NMR chem. shifts to be studied. The results compared favorably with the exptl. solid-state ¹⁵N NMR shifts. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Category: chlorides-buliding-blocks).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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).Category: chlorides-buliding-blocks

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

Achieving Z-scheme charge transfer through constructing Bi₄Ti₃O₁₂/Pd@Au/Ag₂S heterostructure for photoelectrochemical aptasensor of Hg²⁺ detection was written by Luo, Jing;Shao, Xinrong;Gong, Zhengxing;Sun, Xu;Ma, Hongmin;Wu, Dan;Fan, Dawei;Li, Yuyang;Wei, Qin;Ju, Huangxian. And the article was included in Sensors and Actuators, B: Chemical in 2022.Electric Literature of Cl4Na2Pd The following contents are mentioned in the article:

An ultrasensitive photoelectrochem. (PEC) aptasensor based on Bi₄Ti₃O₁₂/Pd@Au/Ag₂S was proposed for the detection of Hg²⁺. The indium tin oxide (ITO) electrode was first decorated with the nested hollow bismuth titanate (Bi₄Ti₃O₁₂) that functioned with Pd@Au as an electron mediator to accelerate the photocurrent conversion, and then silver sulfide (Ag₂S) nanoparticles were grown in-situ to enhance the PEC response. The band gap of Ag₂S is so narrow that photogenerated electrons are easily generated under illumination. Pd@Au acts as an electron medium to facilitate electron transfer from the conduction band of Ag₂S to the valence band of Bi₄Ti₃O₁₂. The quant. detection of Hg²⁺ was achieved based on the thymidine-Hg²⁺-thymidine (T-Hg²⁺-T) specific interaction. The results showed that the PEC aptasensor showed a wide linear range (1 mM-0.1 pM) and a low detection limit (19 fM). In addition, the aptasensor has excellent selectivity, reproducibility and stability, providing a feasible method for the detection of Hg²⁺. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Electric Literature of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Electric Literature of Cl4Na2Pd

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

Ultrasound assisted synthesis of attapulgite-PdO nanocomposite using palladium complex for hydrogen storage: Kinetic studies was written by Allawi, Aumaih H.;Alheety, Mustafa A.;Mohammed, Modher Y.. And the article was included in Inorganic Chemistry Communications in 2022.Electric Literature of Cl4Na2Pd The following contents are mentioned in the article:

This research included the synthesis and characterization of new complex by in-situ method using two mole equivalent from 3,4,5-trimethoxybenzoic acid (TMB) and triphenylphosphine (PPh₃) in the presence of triethylamine (NEt₃). This complex was characterized using FTIR, ¹H NMR, ³¹P NMR, CHN, molar conductivity The results prove that TMB ligand behave as monodentate through the protonated oxygen atom of the carboxylic. This complex was used as a precursor for the synthesis of PdO@attapulgite nanocomposite which was characterized using TEM and XRD. The measurement proved that the palladium oxide nanoparticles had a pos. effect in reducing the diameter of the attapulgite channels from 160 nm to the range 90-95 nm. This nanocomposite was used as a potential material for hydrogen storage. The results of hydrogen storage showed that the composite has the ability to store hydrogen even at low pressures, as the composite had the ability to store âˆ?% at 30 bar and reached 3.81% at 90 bar. The kinetic studies prove that the storage fit to the pseudo-second order with coefficient factor equal to 0.9278 and the hydrogen storage was reached the maximum (3.81%) after only 200 s. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Electric Literature of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. 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.Electric Literature of Cl4Na2Pd

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

An efficient green approach for the synthesis of benzothiazole-linked pyranopyrazoles as promising pharmacological agents and docking studies was written by Mallikarjuna Reddy, Guda;Raul Garcia, Jarem;Venkata Subbaiah, Munagapati;Wen, Jet-Chau. And the article was included in Journal of Heterocyclic Chemistry in 2021.Safety of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

Benzothiazole-tethered pyranopyrazoles derivatives I [R = H, 2-Cl, 4-O₂N, etc.] were prepared via environmentally favorable conditions, which included eco-friendly catalyst, ethanol-water solvent, one-pot reaction, and atom- and step-economy procedures. Excellent yield of the products was observed Besides, all products were screened for their antimicrobial behavior. From the biol. results, it was seen that most of the compounds possessed high to moderate antimicrobial properties. Compound I [R = 2-Me] gave prominent antimicrobial property followed by I [R = H, 2-MeO, 4-HO]. In addition, computer-aided studies of the active compounds were also conducted. In this, selected compounds were docked into the intercalation site of DNA of the DNA-gyrase complex. From these results, the highest binding energy of -10.1 kcal/mol was for I [R = 2-Me] against DNA-gyrase. This is the first eco-friendly synthetic method for the preparation of benzothiazole-pyranopyrazoles and the synthetic effort in this study may serve as a model for addnl. environmentally benign reactions. The biol. results may prompt further studies related to antibiotic drugs. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Safety of Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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. 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.Safety of Ethyl 4-chloro-3-oxobutanoate

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

Valence, Size, and Shape Control of Gold Nanoparticles Synthesized by Electron-Assisted Reduction was written by Shi, Mengge;Wang, Zhao. And the article was included in Chemistry – An Asian Journal in 2020.SDS of cas: 122-18-9 The following contents are mentioned in the article:

An electron-assisted strategy was developed to prepare Au nanoparticles (AuNPs) at room temperature Glow discharge plasma as electron source was successfully used to control the valence state, size, and shape of AuNPs. Stable Au(I) was obtained in 3 min by plasma, and Au(I) was reduced to zero valence with the increase in treatment time. An increase in the amount of Au did not induce an increase in particle size. A narrow size distribution was also achieved. The narrowest size distribution was observed at 9 min at 600 V. AuNPs grew slowly under glow discharge plasma, which slightly changed the mean size of AuNPs. Also, the average size of AuNPs was smaller under alk. conditions. The initial pH of the solution can affect the nucleation and growth of AuNPs and further affect their particle size. Spherical AuNPs, hexagonal AuNPs, rectangular AuNPs, flower-shaped AuNPs, and Au nanorods were easily obtained within 30 min by adding different additives. The hexagonal AuNPs exhibited the largest current response toward caffeine and showed a good linear range (0.1-1000μM) with a low detection limit (0.064μM), because their high-energy planes can increase the electron transfer rate and improve electrocatalytic activity. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9SDS of cas: 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.SDS of cas: 122-18-9

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

Anaerobic treatment of glutamate-rich wastewater in a continuous UASB reactor: Effect of hydraulic retention time and methanogenic degradation pathway was written by Chen, Hong;Wei, Yanxiao;Xie, Chenglei;Wang, Hong;Chang, Sheng;Xiong, Ying;Du, Chunyan;Xiao, Benyi;Yu, Guanlong. And the article was included in Chemosphere in 2020.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride The following contents are mentioned in the article:

To investigate the anaerobic treatment efficiency and degradation pathways of glutamate-rich wastewater under various hydraulic retention times (HRTs), a lab-scale upflow anaerobic sludge blanket (UASB) reactor was operated continuously for 180 days. Results showed that high COD (COD) removal efficiencies of 95.5%-96.5% were achieved at HRTs of 4.5 h-6 h with a maximum methane yield of 0.31 L-CH₄/g-COD. When the HRT was shortened to less than 3 h, the removal performance of the reactor declined. There also was an excessive accumulation of volatile fatty acids, which implies that an appropriately small HRT is applicable to the UASB reactor treating glutamate-rich wastewater. Methanogenic degradation of glutamate in the UASB reactor depended on the HRT applied, and the typical methane-producing capability of the sludge at an HRT of 3 h, in descending order, was acetate > glutamate > butyrate > H₂/CO₂ > valerate > propionate. Clostridium and Methanosaeta were predominant in the glutamate-degrading sludge. At least three degradation pathways most likely existed in the UASB reactor, and the pathway via 3-methlaspartate by Clostridium pascui was expected to be dominant. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) 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. 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.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride

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

Copper-Catalyzed Alkyl-Alkyl Cross-Coupling Reactions Using Hydrocarbon Additives: Efficiency of Catalyst and Roles of Additives was written by Iwasaki, Takanori;Imanishi, Reiko;Shimizu, Ryohei;Kuniyasu, Hitoshi;Terao, Jun;Kambe, Nobuaki. And the article was included in Journal of Organic Chemistry in 2014.SDS of cas: 6294-17-3 The following contents are mentioned in the article:

Cross-coupling of alkyl halides with alkyl Grignard reagents proceeds with extremely high TONs of up to 1230000 using a Cu/unsaturated hydrocarbon catalytic system. Alkyl fluorides, chlorides, bromides, and tosylates are all suitable electrophiles, and a TOF as high as 31200 h^-1 was attained using an alkyl iodide. Side reactions of this catalytic system, i.e., reduction, dehydrohalogenation (elimination), and the homocoupling of alkyl halides, occur in the absence of additives. It appears that the reaction involves the β-hydrogen elimination of alkylcopper intermediates, giving rise to olefins and Cu-H species, and that this process triggers both side reactions and the degradation of the Cu catalyst. The formed Cu-H promotes the reduction of alkyl halides to give alkanes and Cu-X or the generation of Cu(0), probably by disproportionation, which can oxidatively add to alkyl halides to yield olefins and, in some cases, homocoupling products. Unsaturated hydrocarbon additives such as 1,3-butadiene and phenylpropyne play important roles in achieving highly efficient cross-coupling by suppressing β-hydrogen elimination, which inhibits both the degradation of the Cu catalyst and undesirable side reactions. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3SDS of cas: 6294-17-3).

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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.SDS of cas: 6294-17-3

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