Month: November 2022

Titanium carbide MXene ornamented with palladium nanoparticles for electrochemical carbon monoxide oxidation was written by Salah, Belal;Eid, Kamel;Abdelgwad, Ahmed M.;Ibrahim, Yasmeen;Abdullah, Aboubakr M.;Hassan, Mohammad K.;Ozoemena, Kenneth I.. And the article was included in Electroanalysis in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Titanium carbide (Ti₃C₂T_x) MXene possesses various unique physicochem. and catalytic properties. However, the electrochem. CO oxidation performance is not yet addressed exptl. Herein, Ti₃C₂T_x (TX=OH, O, and F) ordered and exfoliated two-dimensional nanosheets ornamented with semi-spherical pallidum nanoparticles (2.5 Weight %) with an average diameter of (10±1 nm) (denoted as Pd/Ti₃C₂T_x) is rationally designed for the electrochem. CO oxidation The fabrication process is based on the selective chem. etching of Ti₃AlC₂ and delamination under sonication to form Ti3C2Tx nanosheets that are used as a substrate and reducing agent for supporting in situ growth of Pd nanoparticles via impregnation with Pd salt. Interestingly, Pd-free Ti₃C₂T_x displayed inferior CO oxidation activity, while Pd/Ti₃C₂T_x enhanced the CO oxidation activity substantially. This is attributed to the combination of outstanding physicochem. properties of Ti₃C₂T_x and the catalytic merits of Pd nanoparticles. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Category: chlorides-buliding-blocks).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) 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.Category: chlorides-buliding-blocks

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

Chemoenzymatic catalysis of tert-butyl 6-cyano-(3R,5R)-dihydroxyhexanoate by aldo-keto reductase coupled with composite Fe₃O₄ nanozyme scaffold was written by Qiu, Shuai;Xu, Shen-Yuan;Wang, Ya-Jun;Zheng, Yu-Guo. And the article was included in Chemical Engineering Science in 2022.Electric Literature of C6H9ClO3 The following contents are mentioned in the article:

Cofactor NADPH is widely used in enzymic redox reactions, however, its regeneration by glucose dehydrogenase (GDH) suffers from massive glucose consumption, costly wastewater treatment, and low atom efficiency. Herein, Fe3O4 nanoparticles supported on helical multi-walled carbon nanotubes (Fe3O4@HMWCNTs) was prepared and displayed comparable transfer hydrogenation activity to Exiguobacterium sibiricum GDH (EsGDH). We developed a chemoenzymic catalysis based on a combination of an aldo-keto reductase KmAKR with Fe3O4@HMWCNTs scaffold, which asym. synthesized optically pure tert-Bu 6-cyano-(3R,5R)-dihydroxyhexanoate ((3R,5R)-2, > 99.5% dep). Under the optimized conditions, 10 mM NADP+ was converted to NADPH by 5.0 mg Fe3O4@HMWCNTs, in a yield of > 80.0%. The combination of Fe3O4@HMWCNTs with KmAKRM7 completely reduced 10 mM tert-Bu 6-cyano-(5R)-hydroxy-3-oxohexanoate ((5R)-1) to (3R,5R)-2, in a conversion of > 99.0% and dep > 99.5%. Contrast to the previous developed biocatalytic approach with KmAKR and EsGDH, this efficient and compatible nanozyme-enzyme process required neither glucose/alcs. as co-substrate nor a glucose dehydrogenase/alc. dehydrogenase for NADPH regeneration. 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. 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.Electric Literature of C6H9ClO3

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

Low-temperature control over deposition of ultrafine Pd nanoparticles on porous carbon nanosheets for highly efficient dehydrogenation of ammonia borane was written by Zhao, Xue;Hu, Hanyue;Li, Guo;Cai, Jiaqi;Wang, Yi;Fan, Guangyin. And the article was included in Journal of Alloys and Compounds in 2022.Formula: Cl4Na2Pd The following contents are mentioned in the article:

The search for simply synthetic strategies of small-size metal nanoparticles is of significant relevance but still faces challenges. In this paper, a method of lowtemperature regulation (LTR) of ultrafine palladium nanoparticles deposited on porous carbon nanosheets is proposed for efficient dehydrogenation of ammonia borane. The LTR method might relieve the sintering of metal particles, thereby resulting in ultrafine Pd nanoparticles of 1.7 nm and their high dispersion on porous carbon. As suggested by the catalytic experiments hereby, Pd/NPC-LTR contributes to higher turnover frequencies of ammonia borane hydrolysis relative to most Pd-based catalysts reported previously. Furthermore, the catalytic performance could be further enhanced by the addition of NaOH under the same reaction conditions, with the hydrolysis completion time shortened by 2.5 times. Moreover, the recycle tests reveal that Pd/NPC-LTR catalyst has good stability and reusability in the hydrolysis of ammonia borane, preserving 70% of its initial catalytic activity even after 10 recycles. The insights reported here can be easily extended to slick preparation and rational design of Pd-catalysts for practical applications. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Formula: Cl4Na2Pd).

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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Formula: Cl4Na2Pd

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

Cobalt Bis(dicarbollide) Alkylsulfonamides: Potent and Highly Selective Inhibitors of Tumor Specific Carbonic Anhydrase IX was written by Gruener, Bohumir;Kugler, Michael;El Anwar, Suzan;Holub, Josef;Nekvinda, Jan;Bavol, Dmytro;Ruzickova, Zdenka;Pospisilova, Klara;Fabry, Milan;Kral, Vlastimil;Brynda, Jiri;Rezacova, Pavlina. And the article was included in ChemPlusChem in 2021.Reference of 75-57-0 The following contents are mentioned in the article:

Carbonic anhydrase IX (CAIX) is an enzyme expressed on the surface of cells in hypoxic tumors. It plays a role in regulation of tumor pH and promotes thus tumor cell survival and occurrence of metastases. Here, derivatives of the cobalt bis(dicarbollide)(1-) anion are reported that are based on substitution at the carbon sites of the polyhedra by two alkylsulfonamide groups differing in the length of the aliphatic connector (from C1 to C4, n = 1-4), which were prepared by cobalt insertion into the 7-sulfonamidoalkyl-7,8-dicarba-nido-undecaborate ions. Pure meso- and rac-diastereoisomeric forms were isolated. The series is complemented with monosubstituted species (n = 2). Synthesis by a direct method furnished similar derivatives (n = 2, 3), which are chlorinated at the B(8,8� boron sites. All compounds inhibited CAIX with subnanomolar inhibition constants and showed high selectivity for CAIX. The best inhibitory properties were observed for the compound with n = 3 and two substituents present in rac-arrangement with K_i = 20 pM and a selectivity index of 668. X-ray crystallog. was used to study interactions of these compounds with the active site of CAIX on the structural level. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Reference of 75-57-0).

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

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

Synthesis of highly refractive and highly fluorescent rigid cyanuryl polyimines with polycyclic aromatic hydrocarbon pendants was written by Kotaki, T.;Nishimura, N.;Ozawa, M.;Fujimori, A.;Muraoka, H.;Ogawa, S.;Korenaga, T.;Suzuki, E.;Oishi, Y.;Shibasaki, Y.. And the article was included in Polymer Chemistry in 2016.Reference of 2272-40-4 The following contents are mentioned in the article:

A series of rigid cyanuryl polyimines, polyguanamines (PGs) bearing polycyclic aromatic hydrocarbon pendants were successfully synthesized from 2-substituted 4,6-dichloro-1,3,5-triazine and aromatic diamine monomers used in conventional solution polymerization In addition, their thermal and optical properties were also investigated. All polymers showed high thermostabilities (T_g âˆ?320 °C, T_d5 (N₂) âˆ?466 °C, residue at 800 °C under nitrogen âˆ?9.0%) and adequate solubilities in polar organic solvents. Films prepared by the solvent-cast method showed good transparencies, which mainly depended on the diamine structure as opposed to the dichloride moiety. The refractive indexes at the D-line (589 nm) of the PG films were unexpectedly high, between 1.677 and 1.800, compared to those of common organic optical polymeric resins. The incorporated melamine moieties afforded effective dense packing with the polycyclic aromatic hydrocarbon groups filling the free spaces between rigid polymer chains, resulting in unusually high refractive indexes. The PG polymer solution in N-methylpyrrolidone showed strong blue fluorescence (371-471 nm) with a quantum yield of up to 98%. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Reference of 2272-40-4).

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. 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.Reference of 2272-40-4

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

Total Syntheses Supramolecular Style: Solid-State Construction of [2.2]Cyclophanes with Modular Control of Stereochemistry was written by Friscic, Tomislav;Elacqua, Elizabeth;Dutta, Saikat;Oburn, Shalisa M.;MacGillivray, Leonard R.. And the article was included in Crystal Growth & Design in 2020.Synthetic Route of C6H5ClO2 The following contents are mentioned in the article:

A series of templated solid-state reactions are used to construct the ‘bent’ isomer of the [2.2]cyclophane family of mols. Small-mol. hydrogen-bond-donor templates based on resorcinol complete the supramol. construction of ortho-, meta-, and para-[2.2]cyclophanes in the solid state. The family of exo,exo-dicyclobutyl[2.2]cyclophanes forms regiospecifically in up to quant. yields. The confines of the organic solid state and the modular nature of the template approach allow for the generation of a less stable exo,endo-[2.2]metacyclophane by simply changing the template to enforce a concomitant change in self-assembly. Our results demonstrate the first completed solid-state construction of each member of the family of [2.2]cyclophanes. Small-mol. hydrogen-bond-donor templates based on resorcinol complete the supramol. construction of ortho-, meta-, and para-[2.2]cyclophanes in the solid state. The exo,exo-dicyclobutyl[2.2]cyclophanes and less stable exo,endo-[2.2]metacyclophane form regiospecifically in up to quant. yields. Solid-state fluorescence data of the orthocyclophane exhibits a markedly broader fluorescence envelope and red-shifted λ_max in comparison to the metacyclophanes. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Synthetic Route of C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) 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. 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.Synthetic Route of C6H5ClO2

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

Amino Acids Bearing Aromatic or Heteroaromatic Substituents as a New Class of Ligands for the Lysosomal Sialic Acid Transporter Sialin was written by Dubois, Lilian;Pietrancosta, Nicolas;Cabaye, Alexandre;Fanget, Isabelle;Debacker, Cecile;Gilormini, Pierre-Andre;Dansette, Patrick M.;Dairou, Julien;Biot, Christophe;Froissart, Roseline;Goupil-Lamy, Anne;Bertrand, Hugues-Olivier;Acher, Francine C.;McCort-Tranchepain, Isabelle;Gasnier, Bruno;Anne, Christine. And the article was included in Journal of Medicinal Chemistry in 2020.Synthetic Route of C6H5ClO2 The following contents are mentioned in the article:

Sialin, encoded by the SLC17A5 gene, is a lysosomal sialic acid transporter defective in Salla disease, a rare inherited leukodystrophy. It also enables metabolic incorporation of exogenous sialic acids, leading to autoantibodies against N-glycolylneuraminic acid in humans. Here, we identified a novel class of human sialin ligands by virtual screening and structure-activity relationship studies. The ligand scaffold is characterized by an amino acid backbone with a free carboxylate, an N-linked aromatic or heteroaromatic substituent, and a hydrophobic side chain. The most potent compound, 45 (LSP12-3129), inhibited N-acetylneuraminic acid 1 (Neu5Ac) transport in a non-competitive manner with IC₅₀ â‰?2.5μM, a value 400-fold lower than the K_M for Neu5Ac. In vitro and mol. docking studies attributed the non-competitive character to selective inhibitor binding to the Neu5Ac site in a cytosol-facing conformation. Moreover, compound 45 rescued the trafficking defect of the pathogenic mutant (R39C) causing Salla disease. This new class of cell-permeant inhibitors provides tools to investigate the physiol. roles of sialin and help develop pharmacol. chaperones for Salla disease. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Synthetic Route of C6H5ClO2).

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. 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.Synthetic Route of C6H5ClO2

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

Amino Acids Bearing Aromatic or Heteroaromatic Substituents as a New Class of Ligands for the Lysosomal Sialic Acid Transporter Sialin was written by Dubois, Lilian;Pietrancosta, Nicolas;Cabaye, Alexandre;Fanget, Isabelle;Debacker, Cecile;Gilormini, Pierre-Andre;Dansette, Patrick M.;Dairou, Julien;Biot, Christophe;Froissart, Roseline;Goupil-Lamy, Anne;Bertrand, Hugues-Olivier;Acher, Francine C.;McCort-Tranchepain, Isabelle;Gasnier, Bruno;Anne, Christine. And the article was included in Journal of Medicinal Chemistry in 2020.Application of 638-07-3 The following contents are mentioned in the article:

Sialin, encoded by the SLC17A5 gene, is a lysosomal sialic acid transporter defective in Salla disease, a rare inherited leukodystrophy. It also enables metabolic incorporation of exogenous sialic acids, leading to autoantibodies against N-glycolylneuraminic acid in humans. Here, we identified a novel class of human sialin ligands by virtual screening and structure-activity relationship studies. The ligand scaffold is characterized by an amino acid backbone with a free carboxylate, an N-linked aromatic or heteroaromatic substituent, and a hydrophobic side chain. The most potent compound, 45 (LSP12-3129), inhibited N-acetylneuraminic acid 1 (Neu5Ac) transport in a non-competitive manner with IC₅₀ â‰?2.5μM, a value 400-fold lower than the K_M for Neu5Ac. In vitro and mol. docking studies attributed the non-competitive character to selective inhibitor binding to the Neu5Ac site in a cytosol-facing conformation. Moreover, compound 45 rescued the trafficking defect of the pathogenic mutant (R39C) causing Salla disease. This new class of cell-permeant inhibitors provides tools to investigate the physiol. roles of sialin and help develop pharmacol. chaperones for Salla disease. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Application of 638-07-3).

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. 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.Application of 638-07-3

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

Facile primary battery-based humidity sensor for multifunctional application was written by Zhao, Qiuni;Duan, Zaihua;Wu, Yingwei;Liu, Bohao;Yuan, Zhen;Jiang, Yadong;Tai, Huiling. And the article was included in Sensors and Actuators, B: Chemical in 2022.Reference of 7447-41-8 The following contents are mentioned in the article:

Power generation humidity sensor has attracted attention in recent years due to its great potential in self-powered electronics. Herein, combining with the working mechanisms of primary battery and humidity sensor, we propose a facile primary battery-based device (PBD) with dual functions of humidity sensing and power generation, which is fabricated by copper adhesive tape (as pos. electrode), lithium chloride (LiCl) active layer (for adsorption and conduction), and aluminum adhesive tape (as neg. electrode) on the ceramic substrate. By regulating the concentration of the LiCl, 1.0 mol/L LiCl-based PBD can be developed as a humidity sensor, which exhibits a sensitivity of 4.86 mV/RH and good linearity in a wide detection range (10.9%-91.5% relative humidity) at room temperature (25°C). Moreover, 2.0 mol/L LiCl-based PBD can be developed as a power generator due to its high output of 0.55 V. Finally, multifunctional applications (such as respiratory monitoring, non-contact switch, lighting light-emitting diode (LED)) of the PBDs are demonstrated. This work not only provides a facile avenue to develop dual-function devices, but also exhibits a great potential in self-powered humidity sensors. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Reference of 7447-41-8).

Lithium chloride (cas: 7447-41-8) 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).Reference of 7447-41-8

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

Activatable Near-Infrared Probe for Fluorescence Imaging of γ-Glutamyl Transpeptidase in Tumor Cells and In Vivo was written by Luo, Zhiliang;Feng, Liandong;An, Ruibing;Duan, Guanfu;Yan, Runqi;Shi, Hua;He, Jian;Zhou, Zhengyang;Ji, Changge;Chen, Hong-Yuan;Ye, Deju. And the article was included in Chemistry – A European Journal in 2017.Safety of 4-Chlororesorcinol The following contents are mentioned in the article:

γ-Glutamyl transpeptidase (GGT) is a cell-membrane-bound enzyme that is involved in various physiol. and pathol. processes and is regarded as a potential biomarker for many malignant tumors, precise detection of which is useful for early cancer diagnosis. Herein, a new GGT-activatable near-IR (NIR) fluorescence imaging probe (GANP) by linking of a GGT-recognitive substrate γ-glutamate (γ-Glu) and a NIR merocyanine fluorophore (mCy-Cl) with a self-immolative linker p-aminobenzyl alc. (PABA) is reported. GANP was stable under physiol. conditions, but could be efficiently activated by GGT to generate â‰?00-fold enhanced fluorescence, enabling high sensitivity (detection limit of â‰?.6 mU L^-1) and specificity for the real-time imaging of GGT activity as well as rapid evaluation of the inhibition efficacy of GGT inhibitors in living tumor cells. Notably, the deep tissue penetration ability of NIR fluorescence could further allow GANP to image GGT in frozen tumor tissue slices with large penetration depth (>100 μm) and in xenograft tumors in living mice. This GGT activatable NIR fluorescence imaging probe could facilitate the study and diagnosis of other GGT-correlated diseases in vivo. 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. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids.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.Safety of 4-Chlororesorcinol

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