Month: November 2022

Unveiling the effect of gas treatment on the electronic structure of carbon nanotube-supported Pd catalysts for electroreduction of H₂O₂ and Heck reaction was written by Kim, Ja Young;Jo, Youngshin;Kim, Ji Dang;Choi, Myong Yong;Lee, Sunwoo;Choi, Hyun Chul. And the article was included in Chemosphere in 2022.Safety of Sodium tetrachloropalladate(II) The following contents are mentioned in the article:

This study explored the impact of gas treatments on the structures of multi-walled carbon nanotubes supported Pd (CNT-Pd) catalysts used for electrocatalytic H₂O₂ reduction and the Heck cross-coupling reaction. The CNT-Pd catalyst was prepared by anchoring Pd nanoparticles on thiolated CNTs. XPS was conducted to examine the surface composition and electronic structure changes of the CNT-Pd catalyst before and after gas treatment. The XPS results revealed that as-prepared CNT-Pd contains at least two different oxidation states on the surface, whereon their proportions depend on the gas used for treatment. Treatment with H₂ leads to Pd(0) enrichment near the surface, while O₂ treatment causes Pd(II) enrichment of CNT-Pd. All catalysts containing both Pd(0) and Pd(II) were active toward H₂O₂ reduction, and the Heck cross-coupling reaction of Bu acrylate and 4-iodotoluene; increased proportion of metallic Pd(0) boosted the catalytic reaction. However, the catalyst stability increased as the amount of Pd(II) increased. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Safety of Sodium tetrachloropalladate(II)).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Safety of Sodium tetrachloropalladate(II)

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

Synthesis and characterization of novel poly(ionic liquid)s and their viscosity-increasing effect was written by Zang, Xiyu;Chang, Mingfeng;Zheng, Lan;Zhou, Yingying;Wang, Yuqi;Ren, Jiahao;Wu, Le;Han, Xiaolong;Wang, Qian;Wu, Jinqiao. And the article was included in Journal of Molecular Liquids in 2020.HPLC of Formula: 122-18-9 The following contents are mentioned in the article:

Three novel quaternary ammonium based poly(ionic liquid)s (PILs) were prepared and developed, expecting to increase the viscosity of liquid CO₂ (LCO₂). The Vinyl benzoate and various quaternary ammonium salts was used to provide CO₂-philicity group and viscosity-increasing groups resp. And the PILs products (TDBAS, HDBAS and SDBAS) were synthesized with three processes consisting of polymerization, sulfonation and ion exchange. The characterization results of gel permeation chromatog. (GPC), NMR spectrum (NMR), fourier transform IR spectrometer (FT-IR), element anal. (EA) and thermogravimetric anal. (TGA) confirmed the successful synthesis of the PILs. Based on the discussion of reverse micelle microstructures and interfacial tension of prepared PILs systems, the viscosity-increasing mechanisms of the prepared PILs were analyzed and explicated. The exptl. results indicated that the HDBAS presented an outstanding viscosity-increasing effect and acceptable water solubility among all the PILs, which may have a prosperous prospect in the near future. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9HPLC of Formula: 122-18-9).

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

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

Highly Selective, Amine-Derived Cannabinoid Receptor 2 Probes was written by Westphal, Matthias V.;Sarott, Roman C.;Zirwes, Elisabeth A.;Osterwald, Anja;Guba, Wolfgang;Ullmer, Christoph;Grether, Uwe;Carreira, Erick M.. And the article was included in Chemistry – A European Journal in 2020.Safety of 1-Bromo-6-chlorohexane The following contents are mentioned in the article:

The endocannabinoid (eCB) system is implied in various human diseases ranging from central nervous system to autoimmune disorders. Cannabinoid receptor 2 (CB₂R) is an integral component of the eCB system. Yet, the downstream effects elicited by this G protein-coupled receptor upon binding of endogenous or synthetic ligands are insufficiently understood-likely due to the limited arsenal of reliable biol. and chem. tools. Herein, we report the design and synthesis of CB₂R-selective cannabinoids along with their in vitro pharmacol. characterization (binding and functional studies). They combine structural features of HU-308 and AM841 to give chimeric ligands that emerge as potent CB₂R agonists with high selectivity over the closely related cannabinoid receptor 1 (CB₁R). The synthesis work includes convenient preparation of substituted resorcinols often found in cannabinoids. The utility of the synthetic cannabinoids in this study is showcased by preparation of the most selective high-affinity fluorescent probe for CB₂R to date. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Safety of 1-Bromo-6-chlorohexane).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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. 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).Safety of 1-Bromo-6-chlorohexane

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

Dimers of coumarin-1,2,3-triazole hybrids bearing alkyl spacer: Design, microwave-assisted synthesis, molecular docking and evaluation as antimycobacterial and antimicrobial agents was written by Ashok, Dongamanti;Gundu, Srinivas;Aamate, Vikas Kumar;Devulapally, Mohan Gandhi;Bathini, Raju;Manga, Vijjulatha. And the article was included in Journal of Molecular Structure in 2018.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

The present study demonstrated the synthesis of new series of coumarin-1,2,3-triazole hybrids under microwave irradiation method. Several dimers of coumarin based 1,2,3-triazole derivatives were synthesized and their antimycobacterial and antimicrobial activities were investigated. The antimycobacterial activity screening results revealed that compounds I (R = Cl; n = 6, 8) were the most active against Mycobacterium tuberculosis H37Rv strain. The active compounds were further evaluated for cytotoxicity with HEK cell lines and exhibited less % of inhibition. The same synthetic hybrids were evaluated for their antimicrobial activity against various bacterial strains and fungal strains and compounds I (R = H, n = 8; R = Cl, n = 5, 6, 8) were found to be the most promising antimicrobial potent mols. Furthermore, the active compounds against Mycobacterium tuberculosis were evaluated for their mol. docking studies against pantothenate synthetase (PS) enzyme of MTB and the docking results are in well agreement with the antitubercular evaluation results. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Category: chlorides-buliding-blocks).

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. 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.Category: chlorides-buliding-blocks

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

Synthesis and extraction results of new halide terminated 2-alkyl-p-tert-butylcalix[4]arenes bearing phosphine oxides or ketones on the narrow rim was written by Menon, Sreejit R.;Schmidt, Joseph A. R.. And the article was included in Tetrahedron in 2016.Computed Properties of C6H12BrCl The following contents are mentioned in the article:

The synthesis of lower rim tetraphosphorylated and tetraketone calix[4]arenes with haloalkyl groups tethered to a single methylene bridge and their utilization as extraction agents for rare earth elements are reported. Synthesis of these new functionalized calix[4]arene species were achieved in good to modest yields, and extraction of nine lanthanide nitrates were explored using these calix[4]arene species. The tetraphosphorylated calix[4]arenes show better lanthanide extraction efficiency than their ketone counterparts, especially for europium(III). These experiments demonstrate that inclusion of a substituent tethered to the methylene bridge does not significantly reduce the extraction efficiency of these new calix[4]arene ligands as compared to similar unsubstituted ligands in the literature, making them important precursors in the development of functionalized stationary phases for separation of lanthanides. Development of similar CMPO-bearing narrow rims and new solid-phase extraction materials for the solid-liquid separation of lanthanides remains the subject of future work. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Computed Properties of C6H12BrCl).

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.Computed Properties of C6H12BrCl

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

Rapid analysis of anionic and cationic surfactants in water by paper spray mass spectrometry was written by Min, Ke;Yang, Qinglan;Zhong, Xiangjing;Yan, Donglan;Luo, Wei;Fang, Zhengfa;Xiao, Jing;Ma, Ming;Chen, Bo. And the article was included in Analytical Methods in 2021.Safety of N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride The following contents are mentioned in the article:

The discharge of wastewater containing surfactants and other industrial pollutants is contaminating the world’s water resources which should be taken seriously. This paper describes a paper spray mass spectrometric (PS-MS) method for rapid and quant. anal. of anionic and cationic surfactants in water samples. Eight cationic surfactants and four anionic surfactants can be simultaneously determined in pos. or neg. mode without sample pretreatment and chromatog. separation The PS-MS anal. time was only 10 s. Under optimized conditions, the method presented a suitable linear range (1-80μg mL-1, linear regression coefficients (R2) higher than 0.995 for cationic surfactants, R2 higher than 0.990 for anionic surfactants), a low limit of detection (0.05-0.35μg mL-1 for cationic surfactants and 0.20-0.35μg mL-1 for anionic surfactants), and satisfactory recovery values (97.3-106.1%). The method validation indicated that the method precision and accuracy were satisfactory. The results demonstrated that PS-MS is especially suitable for the high-throughput anal. of surfactants in water samples. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Safety of N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride).

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

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

Spontaneous catanionic vesicles formed by the interaction between an anionic β-cyclodextrins derivative and a cationic surfactant was written by Silva, O. Fernando;de Rossi, Rita H.;Correa, N. Mariano;Silber, Juana J.;Falcone, R. Dario. And the article was included in RSC Advances in 2018.Synthetic Route of C25H46ClN The following contents are mentioned in the article:

The present work shows the synthesis of a new type of catanionic surfactant, ModCD14-BHD, which involves an anionic amphiphilic cyclodextrin and the cationic benzyl-n-hexadecyldimethylammonium (BHD). It is obtained from the simple association of the cationic surfactant benzyl-n-hexadecyldimethylammonium chloride (BHDC) and β-cyclodextrin (β-CD) monosubstituted with an alkenyl succinate group (Mod-β-CD14). ModCD14-BHD form unilamellar vesicles spontaneously in water, while the individual components (BHDC and Mod-β-CD14) do not. The vesicles were character-ized by dynamic light scattering (DLS), transmission electron microscopy (TEM), SEM (SEM) and ¹H NMR techniques. We suggest that the formation of an inclusion complex between some of the cyclodextrins units and the long hydrocarbon moiety of the cationic surfactant play a crucial role in the vesicles formation. Besides, some or the cavities are available to interact with an external guest. We think that the new surfactant mol. has properties that may lead to important applications in biomedical and pharmaceutical sciences. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Synthetic Route of C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Synthetic Route of C25H46ClN

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

C(1)-Phenethyl Derivatives of [closo-1-CB₁₁H₁₂]^– and [closo-1-CB₉H₁₀]^– Anions: Difunctional Building Blocks for Molecular Materials was written by Jakubowski, Rafal;Pietrzak, Anna;Friedli, Andrienne C.;Kaszynski, Piotr. And the article was included in Chemistry – A European Journal in 2020.Quality Control of Tetramethylammonium chloride The following contents are mentioned in the article:

C(1)-vinylation of [closo-1-CB₉H₁₀]^– (A) and [closo-1-CB₁₁H₁₂]^– (B) with 4-benzyloxystyryl iodide followed by hydrogenation of the double bond and reductive deprotection of the phenol functionality led to C(1)-(4-hydroxyphenethyl) derivatives The phenol functionality was protected as the acetate. The esters were then treated with PhI(OAc)₂ and the resulting isomers were separated kinetically (for derivatives of anion A) or by chromatog. (for derivatives of anion B) giving the difunctionalized building blocks in overall yields of 9% and 50%, resp. A similar series of reactions was performed starting with anions A and B and 4-methoxystyryl bromide and iodide. Significant differences in the reactivity of derivatives of the two carborane anions were rationalized with DFT computational results. Application of the difunctionalized carboranes as building blocks was demonstrated through preparation of two ionic liquid crystals. The extensive synthetic work is accompanied by single crystal XRD anal. of six derivatives This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Quality Control of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) 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.Quality Control of Tetramethylammonium chloride

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

Neutral Chiral Tetrakis-Iodo-Triazole Halogen-Bond Donor for Chiral Recognition and Enantioselective Catalysis was written by Ostler, Florian;Piekarski, Dariusz G.;Danelzik, Tobias;Taylor, Mark S.;Garcia Mancheno, Olga. And the article was included in Chemistry – A European Journal in 2021.Formula: C4H12ClN The following contents are mentioned in the article:

Halogen bonding represents a powerful tool in the field of noncovalent interactions. However, applications in enantioselective recognition and catalysis remain almost nonexistent, due in part to the distinct features of halogen bonds, including long covalent and noncovalent bond distances and high directionality. Herein, this work presents a novel chiral tetrakis-iodo-triazole structure as a neutral halogen bond donor for both chiral anion-recognition and enantioinduction in ion-pair organocatalysis. NMR-titration studies revealed significant differences in anion affinity between the halogen bonding receptor and its hydrogen bonding parent. Selective recognition of chiral dicarboxylates and asym. induction in a benchmark organocatalytic reaction were demonstrated using the halogen bond donor. Inversions in the absolute sense of chiral recognition, enantioselectivity, and chiroptical properties relative to the related hydrogen donor were observed Computational modeling suggested that these effects were the result of distinct anion-binding modes for the halogen- vs. hydrogen-bond donors. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Formula: C4H12ClN).

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. 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).Formula: C4H12ClN

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

Synthesis and studies on S-triazine-based ligand and its metal complexes was written by Shanmugakala, R.;Tharmaraj, P.;Sheela, C. D.;Anitha, C.. And the article was included in International Journal of Inorganic Chemistry in 2012.Synthetic Route of C9H6Cl2N4 The following contents are mentioned in the article:

Tridentate chelate complexes of ML type (where M = Cu(II), Ni(II), and Co(II)) have been synthesized from triazine-based ligand 4,6-bis(5-mercapto-1,3,4-thiadiazol-amine)2-phenylamino-1,3,5-triazine (BMTDT). Microanal. data, magnetic susceptibility measurements, IR, ¹H NMR, UV-vis, mass, and EPR spectral techniques were used to characterize the structure of chelates. The electronic absorption spectra and magnetic susceptibility measurements suggest that metal complexes show square pyramidal geometry. The electrochem. behavior of copper(II) complex is studied by cyclic voltammetry. All synthesized compounds may serve as potential photoactive materials as indicated from their characteristic fluorescence properties. The second harmonic generation efficiency (SHG) of the ligand and metal complexes has been found to be higher than that of urea and KDP. The antimicrobial activity of the ligand and metal(II) complexes against the species Shigella, Chromobacterium, Staphylococcus aureus, Candida albicans, and Aspergillus niger has been carried out and compared with the standard one. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Synthetic Route of C9H6Cl2N4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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.Synthetic Route of C9H6Cl2N4

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