Month: November 2022

Novel deep-cavity calix[4]arene derivatives with large s-triazine conjugate systems: synthesis and complexation for dyes was written by Yang, Fafu;Liu, Weiwei;Xie, Jianwei;Bai, Xiaoyan;Guo, Hongyu. And the article was included in Journal of Inclusion Phenomena and Macrocyclic Chemistry in 2013.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Two novel deep-cavity calix[4]arenes 3 and 4 with large s-triazine π-conjugate systems were designed and synthesized in high yields by reacting calix[4]arene with mono phenyl-substituted cyanuric chloride or further substitution with aniline. The liquid-liquid extraction experiment showed that they possessed excellent extraction abilities towards one cationic and three anionic dyes (Orange I, methylene blue, neutral red, brilliant green). The highest extraction percentage of compound 4 was 88.8 % for brilliant green. The complexation UV-visible spectra of compounds 3 and 4 with the four dyes indicated the existences of complexation action between hosts and guests with 1:1 ratio of complexation in DMSO solution The association constants suggested that the larger π-conjugate system of compound 4 possessed the stronger complexation abilities than that of compound 3. The association constant of compound 4 with BG was as high as 8.1 × 10⁶ M^-1. 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. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. 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.Category: chlorides-buliding-blocks

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

Emulsion liquid membrane modeling for chromium removal from electroplating wastewater using TOMAC as a carrier was written by Othman, Norasikin;Noah, Norul fatiha mohamed;Sulaiman, Raja norimie raja;Jusoh, Norela;Tan, Wan ting. And the article was included in Water Environment Research in 2021.Reference of 5137-55-3 The following contents are mentioned in the article:

Hexavalent chromium, emanating primarily from the electroplating industries, can be reduced to the less toxic trivalent variety by several methods, including emulsion liquid membrane (ELM). In this work, studies on the continuous removal of chromium from authentic electroplating wastewater by ELM are reported. The effects of treat ratio, external feed phase, and stripping agent concentration were examined A math. boundary breakage model was used to study the extraction efficiency of chromium through the ELM process. The model representing the prediction of ELM extraction performance for chromium was validated through the comparison between the simulation and exptl. results. The result showed the simulation model is found to be in good agreement with the exptl. result. Almost 100% of 40 ppm chromium in the external feed phase was extracted within 3 to 5 min using 0.022 M TOMAC as extractant, 1.0 M acidic thiourea in the internal phase, and 1 to 5 of treat ratio. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Reference of 5137-55-3).

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

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

Tetramethylammonium Fluoride Alcohol Adducts for S_NAr Fluorination was written by Morales-Colon, Maria T.;See, Yi Yang;Lee, So Jeong;Scott, Peter J. H.;Bland, Douglas C.;Sanford, Melanie S.. And the article was included in Organic Letters in 2021.COA of Formula: C4H12ClN The following contents are mentioned in the article:

Nucleophilic aromatic fluorination (S_NAr) is among the most common methods for the formation of C(sp²)-F bonds. Despite many recent advances, a long-standing limitation of these transformations was the requirement for rigorously dry, aprotic conditions to maintain the nucleophilicity of fluoride and suppress the generation of side products. This report addresses this challenge by leveraging tetramethylammonium fluoride alc. adducts (Me₄NF·ROH) as fluoride sources for S_NAr fluorination. Through systematic tuning of the alc. substituent (R), tetramethylammonium fluoride tert-amyl alc. (Me₄NF·t-AmylOH) was identified as an inexpensive, practical, and bench-stable reagent for S_NAr fluorination under mild and convenient conditions (80°C in DMSO, without the requirement for drying of reagents or solvent). A substrate scope of more than 50 (hetero) aryl halides and nitroarene electrophiles was demonstrated. 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. 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).COA of Formula: C4H12ClN

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

Design of Plasmon Resonance Shifts by the Galvanic Replacement Degree of Au-Ag Nanozappers was written by Yen, Hung-Chi;Su, Man-Nung;Liu, You-Cheng;Lee, Ming-Wei;Sheu, Yae-Lin;Hsu, Liang-Yan;Chen, Chia-Chun. And the article was included in Journal of Physical Chemistry C in 2019.Synthetic Route of C25H46ClN The following contents are mentioned in the article:

Porous plasmonic nanostructures have attracted broad interest for their built-in cavities, which provide strong localized elec. field enhancement and addnl. plasmon tunability. The authors synthesize nanostructures based on Au-Ag nanozappers (similar to a bug zapper in shape and in function of catching photon with the frame) by progressive galvanic replacement reactions. TEM images present evidence that the cavity size of the Au-Ag nanozapper is controllable. The synthetic method enables design of the longitudinal plasmon modes of the Au-Ag nanozappers progressively varied from 660 to 970 nm with nearly the same aspect ratio. To explore the origin of the spectral shift, the size, the composition, and the void effects of the Au-Ag nanozappers were analyzed using computational electrodynamics simulations. The longitudinal plasmon modes are less sensitive to the frame composition of the nanozappers, in contrast to their susceptibility to the size and the void effects. 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. 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).Synthetic Route of C25H46ClN

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

Pharmacological screening of novel indolo[2,3-b]quinoxaline derivatives was written by Pai, Nandini R.;Pusalkar, Deeptaunshu Atul. And the article was included in Journal of Chemical and Pharmaceutical Research in 2010.Formula: C6H12BrCl The following contents are mentioned in the article:

A condensation reaction of benzenediamine with isatin (1H-indole-2,3-dione) in refluxing glacial acetic acid provided indolo[2,3-b]quinoxaline. The synthesis of the target compounds was achieved by a subsequent reaction of indolo[2,3-b]quinoxaline with carbostyril derivatives [6-(haloalkoxy)-2(1H)-quinolinone and 7-(haloalkoxy)-2(1H)-quinolinone] using NaI, K₂CO₃, TBAB as catalyst system. The title compounds were evaluated against Gram-pos. bacteria and Gram-neg. bacteria (Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli) and it was discovered that they displayed slight antibacterial activity. These compounds were also evaluated in rat models and mouse models for their antipsychotic activity (APO-induced stereotypy, DA autoreceptor agonist activity, induced catalepsy, α1-adrenoceptor antagonist activity) and it was found that these compounds displayed moderate antipsychotic activity. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Formula: C6H12BrCl).

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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Formula: C6H12BrCl

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

Green, fast and simple dispersive liquid-liquid microextraction method by using hydrophobic deep eutectic solvent for analysis of folic acid in fortified flour samples before liquid chromatography determination was written by Faraji, Mohammad;Mahmoodi-Maymand, Masoumeh;Dastmalchi, Farnaz. And the article was included in Food Chemistry in 2020.Electric Literature of C25H54ClN The following contents are mentioned in the article:

A fast, simple, sensitive, and efficient vortex-assisted dispersive liquid-liquid microextraction method (VA-DES-DLME) was developed based on hydrophobic deep eutectic solvent for extraction of folic acid from flour samples followed by HPLC determination Hydrophobic DES was prepared by mixing amylalc. as a hydrogen bond donor and methyltriocthylammonium chloride as a hydrogen bond acceptor. Factors affecting DLLME were considered and optimized. In optimal conditions, the calibration curve was linear in the range 5.0-500 ng g^-1 with a correlation coefficient higher than 0.99. The limit of detection (LOD) and the limit of quantification (LOQ) were 1.0 and 3.0 ng g^-1, resp. The intra-day and inter-day precision at concentrations of 10 and 100 ng g^-1 were less than 8%. Finally, application of the proposed procedure was investigated by folic acid anal. in flour samples and the relative recoveries obtained were acceptable (Recovery ≥ 90%). This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Electric Literature of C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) 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. 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).Electric Literature of C25H54ClN

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

A simple and green ultrasound liquid-liquid microextraction method based on low viscous hydrophobic deep eutectic solvent for the preconcentration and separation of selenium in water and food samples prior to HG-AAS detection was written by Altunay, Nail;Tuzen, Mustafa. And the article was included in Food Chemistry in 2021.HPLC of Formula: 5137-55-3 The following contents are mentioned in the article:

A simple and green ultrasound liquid-liquid microextraction method based on low viscous hydrophobic deep eutectic solvent (ULLME-LV-HDES) was proposed for the preconcentration and separation of selenium prior to HG-AAS detection. Six different DESs were prepared for the extraction of selenium. Quercetin was used complexing agent for Se(IV) ions. Various anal. parameters such as pH, quercetin amount, DES type and its volume, sonication time, sample volume were optimized. Tolerance limits of anion, cation and transition metal ions were studied. Preconcentration and enhancement factor were found 62.5 and 121. Under the optimum conditions, limit of detection was found 0.25 ng L-1 with calibration range of 0.8-120 ng L-1. Relative standard deviation was found 3.2%. The accuracy of the method was confirmed with certified reference materials (NIST 1567a Wheat flour and NIST 1548a Typical diet). Finally, the developed method was successfully applied to food and water samples. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3HPLC of Formula: 5137-55-3).

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

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

Completely Stereoselective Synthesis of Sulfonated 1,3-Dihydroisobenzofurans via Radical Multicomponent Reactions was written by Shi, Hao-Nan;Huang, Min-Hua;He, Chun-Lan;Lu, Hai-Ping;Hao, Wen-Juan;Tu, Xing-Chao;Tu, Shu-Jiang;Jiang, Bo. And the article was included in Journal of Organic Chemistry in 2019.Name: 5-Chloro-2-(phenylethynyl)benzaldehyde The following contents are mentioned in the article:

Two types of new oxidant-free radical multicomponent reactions of β-alkynyl ketones, aryldiazonium salts, and DABCO·(SO₂)₂ (DABSO) were established, leading to the tunable generation of two class of sulfonated 1,3-dihydroisobenzofurans with moderate to good yields and complete stereoselectivity under the mild conditions. The radical-induced scission/recombination of the C(sp³)-C(sp³) bond enabled direct 1,8-halosulfonylation of β-alkynyl ketones, giving 1,3-dimethylene-substituted (1Z,3Z)-1,3-dihydroisobenzofurans with substituent diversity by p-nitrobenzyl bromide (PNBB) or p-nitrobenzyl chloride (PNBC) as the halo source. Fine-tuning substituents to strong electron-withdrawing ones, such as nitro, cyano, and trifluoromethyl, linked to aryldiazonium tetrafluoroborates allowed a different annulation/1,5-azosulfonylation process to access sulfonated (Z)-1,3-dihydroisobenzofurans with one quaternary carbon-amino functionality. This study involved multiple reactions and reactants, such as 5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3Name: 5-Chloro-2-(phenylethynyl)benzaldehyde).

5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3) 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. 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.Name: 5-Chloro-2-(phenylethynyl)benzaldehyde

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

Time-Resolved Analysis of the Structural Dynamics of Assembling Gold Nanoparticles was written by Merkens, Stefan;Vakili, Mohammad;Sanchez-Iglesias, Ana;Litti, Lucio;Gao, Yunyun;Gwozdz, Paul V.;Sharpnack, Lewis;Blick, Robert H.;Liz-Marzan, Luis M.;Grzelczak, Marek;Trebbin, Martin. And the article was included in ACS Nano in 2019.Application of 122-18-9 The following contents are mentioned in the article:

The hydrophobic collapse is a structural transition of grafted polymer chains in a poor solvent. Although such a transition seems an intrinsic event during clustering of polymer-stabilized nanoparticles in the liquid phase, it has not been resolved in real time. In this work, we implemented a microfluidic 3D-flow-focusing mixing reactor equipped with real-time analytics, small-angle X-ray scattering (SAXS), and UV-vis-NIR spectroscopy to study the early stage of cluster formation for polystyrene-stabilized gold nanoparticles. The polymer shell dynamics obtained by in situ SAXS anal. and numerical simulation of the solvent composition allowed us to map the interaction energy between the particles at early state of solvent mixing, 30 ms behind the crossing point. We found that the rate of hydrophobic collapse depends on water concentration, ranging between 100 and 500 nm/s. Importantly, we confirmed that the polymer shell collapses prior to the commencement of clustering. 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. 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 of 122-18-9

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

Design, synthesis and applications of fluoride probe based on aromatization of isoquinolinium salts was written by Zhao, Yun-Hui;Yu, Yajun;Guo, Tao;Zhou, Zhihua;Tang, Zilong;Tian, Li. And the article was included in Dyes and Pigments in 2020.Formula: C15H9ClO The following contents are mentioned in the article:

A novel ratiometric fluorescent probe based on aromatization drive of isoquinolinium salts was designed, synthesized to recognize fluoride. The applications showed that the probe has high selectivity and sensitivity to fluoride. Fluoride induces a cascade reaction of hydroxyl deprotection and 1,6-oxidative elimination, and causes a remarkable fluorescence enhancement. The relative fluorescent intensities (I₃₉₈/I₅₂₂) increased linearly with F^– concentration at 0-9.0μmol L^-1. The limit of detection was very low (3.7 nM) due to the intrinsic aromatization drive of probe induced by F^–. The recognition mechanism was demonstrated by mass spectrum (MS) and ¹H NMR. The in vitro imaging results showed that the new probe BIQS (2-[4-(tert-butyl-diphenyl-silyloxy)-benzyl]-3-(4-methoxy- phenyl) -isoquinolinium nitrate) was membrane-permeable and could be applied into the determination of fluoride ions in living cells. This study involved multiple reactions and reactants, such as 5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3Formula: C15H9ClO).

5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3) 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. 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: C15H9ClO

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