Category: chlorides-buliding-blocks

Meng, Haoyu published the artcileUsing a high-throughput zebrafish embryo screening approach to support environmental hazard ranking for cardiovascular agents, Name: Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, the publication is Science of the Total Environment (2020), 134703, database is CAplus and MEDLINE.

Cardiovascular agents are among the most frequently prescribed pharmaceuticals worldwide. They are widely detected in aquatic ecosystems, while their ecotoxicol. implications are rarely explored. Here, by the use of a new developed high-throughput zebrafish embryo screening approach, we systematically assessed the cardiovascular disruptive effects of 32 commonly used cardiovascular agents at environmental relevant concentrations and above (0.04, 0.2 and 1 μM). Multiple endpoints, including cardiac output, heart rate and blood flow, were quantified via customized video anal. approaches. Among the 32 agents, simvastatin and lovastatin exhibited the strongest toxicities to fish embryos, and the LDs were observed at 0.2 μM and 1 μM. Beta-blockers such as atenolol and metoprolol significantly decreased heart rates by up to 15% and 12% and increased blood flows by up to 14% and 14%, resp., at concentrations as low as 0.04 μM. Several hypertension/hyperlipidemia medications such as pravastatin and enalapril led to significant inhibition of heart rates (up to 14% and 16% decreases, resp.) as well as slightly decreases of the cardiac outputs and blood flows. In addition, a tentative risk assessment clearly demonstrated that some compounds such as atenolol, metoprolol and bezafibrate pose considerable risks to aquatic organisms at environmental or slightly higher than surface water concentrations Our results provided novel insights into understanding of the potential risks of cardiovascular agents and contributed to their environmental hazard ranking.

Science of the Total Environment published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Name: Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Dong, Lefeng published the artcileCopper-catalyzed radical trifluoroethylthiolation of arylboronic acids with PhSO₂SCH₂CF₃, Safety of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, the publication is Tetrahedron Letters (2022), 153293, database is CAplus.

Herein, a copper-catalyzed trifluoroethylthiolation reaction of S-(2,2,2-trifluoroethyl)benzenesulfonothioate and phenylboronic acids at room temperature was reported. The reaction achieved the insertion of trifluoroethylthio moiety to efficiently obtain various substituted aryl 2,2,2-trifluoroethyl thioethers RSCH₂CF₃ [R = 3-OMeC₆H₄, 4-BrC₆H₄, 4-PhC₆H₄, etc.] in good yields. Mechanistic investigation indicated the trifluoroethylthiolation radical was involved in the catalytic circle. Moreover, trifluoroethylthiolated clofibrate was synthesized in a particular fashion.

Tetrahedron Letters published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Safety of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Li, Zeqing published the artcileMicrowave-assisted, Ir-catalyzed aromatic C-H borylation, Name: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Research on Chemical Intermediates (2013), 39(4), 1917-1926, database is CAplus.

One-step conversions of 1,3-disubstituted benzenes to aryl boronates and 2,6-disubstituted pyridines to heteroaryl boronates are described. Microwave heating was used for all reactions. [(COD)Ir(μ-OMe)]₂ and 4,4′-di-tert-butyl-2,2′-bipyridine were used as catalysts, in Me tert-Bu ether. Acceleration of the rate of reaction was remarkable compared with that of same reaction under conventional heating conditions.

Research on Chemical Intermediates published new progress about 929626-16-4. 929626-16-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronate Esters, name is 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C13H18BClO3, Name: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Chen, Fa-Jie published the artcileCu(II)-Mediated C-S/N-S Bond Formation via C-H Activation: Access to Benzoisothiazolones Using Elemental Sulfur, Synthetic Route of 6313-54-8, the publication is Organic Letters (2014), 16(21), 5644-5647, database is CAplus and MEDLINE.

A copper-mediated C-S/N-S bond-forming reaction via C-H activation that uses elemental sulfur has been developed. The addition of TBAI was found to be crucial for the success of this transformation. The method is scalable, shows excellent functional group tolerance, and is compatible with heterocycle substrates, providing efficient and practical access to benzoisothiazolones. E.g., in presence of TBAI, Cu(OAc)₂, Ag₂O, and S₈, reaction of benzamide substrate (I) gave 89% benzoisothiazolone derivative (II). The direct diversification of the benzoisothiazolone products into a variety of sulfur-containing compounds is also demonstrated.

Organic Letters published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Synthetic Route of 6313-54-8.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Chen, Chan-Cheng published the artcilePrediction of Flash Point of Organosilicon Compounds Using Quantitative Structure Property Relationship Approach, HPLC of Formula: 14799-94-1, the publication is Industrial & Engineering Chemistry Research (2010), 49(24), 12702-12708, database is CAplus.

Flash point (FP) is the primary property to classify flammable liquids to assess their fire and explosion hazards. Due to technol. advancement in discovering or synthesizing new compounds, there is often a significant gap between the demand for such data and their availability. Reliable methods to estimate the FP of a compound are indispensable. This work used a quant. structure property relationship study to predict the FP of organosilicon compounds To establish and validate proposed models, a dataset of 230 organosilicon compounds was collected and divided into a training set of 184 compounds and a testing set of 46 compounds A step-wise regression method selected the required mol. descriptors to predict organosilicon compound FP from 1538 mol. descriptors. Depending on the p-value to accept a descriptor to enter the model, models with different number of descriptors were obtained. Thus, 13- and 6-descriptor models were obtained with resp. p-values of 5 × 10^-4 and 1 × 10^-5. The 6-descriptor model fit the training data with R² = 0.8981; it predicted test data with Q² = 0.8533. The 13-descriptor model fit the training data with R² = 0.9293; it predicted test data with Q² = 0.9245. Average predictive errors were <5% for both proposed models and they are useful for many practical applications since they used only mol. structure-based calculated descriptors.

Industrial & Engineering Chemistry Research published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, HPLC of Formula: 14799-94-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Qiankun published the artcileDynamic Photoswitching of Electron Energy Levels at Hybrid ZnO/Organic Photochromic Molecule Junctions, Related Products of chlorides-buliding-blocks, the publication is Advanced Functional Materials (2018), 28(28), n/a, database is CAplus.

The functionality of interfaces in hybrid inorganic/organic (opto)electronic devices is determined by the alignment of the resp. frontier energy levels at both sides of the heterojunctions. Controlling the interface electronic landscape is a key element for achieving favorable level alignment for energy and charge transfer processes. Here, it is shown that the electronic properties of polar ZnO surfaces can be reversibly modified using organic photochromic switches. By employing a range of surface characterization techniques combined with d. functional theory calculations, it is demonstrated that self-assembled monolayers (SAMs) of photochromic phosphonic acid diarylethenes (PA-DAEs) can be employed to reversibly change the electronic properties of polar ZnO/SAM structures by light stimuli. The HOMO level of PA-DAE is raised by 0.7 eV and the lowest unoccupied one lowered by 0.9 eV, resp., upon illumination by UV light and the levels shift back to their original position upon illumination by green light. The results thus provide a pathway to tailor hybrid interface electronic properties in a dynamic manner upon simple light illumination, which can be exploited to reversibly tune the elec. properties of photoswitchable (opto)electronic devices.

Advanced Functional Materials published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C19H21N3O, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Yangyang published the artcileAldehyde-substituted donor-acceptor-type dithienylethenes as novel building blocks for photochromic materials, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Chemical Research (2018), 42(10), 531-534, database is CAplus.

Two novel donor-π-acceptor-type dithienylethene derivatives I [n = 0, 1], in which the triphenylamine group acts as electron donor and the formyl group functions as electron acceptor, was developed. Their structures were confirmed by ¹H NMR, ¹³C NMR and HRMS (ESI). Investigation of their photochromic properties indicated that they had good photochromic behavior and excellent fatigue resistance on irradiation with UV or visible light. DFT calculations further validated these exptl. results for photochromic behavior. Moreover, these compounds could be utilized as versatile building blocks to construct novel near-IR photochromic materials.

Journal of Chemical Research published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C9H9ClN2, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Qin, Zhaohai published the artcileStudies on pyridine derivatives (IV): Synthesis and R. solani inhibiting activities of 4-aryl(alkyl)-3-[(2-chloropyrid)-4-yl]-1,2,4-triazoline-5-thiones, Related Products of chlorides-buliding-blocks, the publication is Nongyaoxue Xuebao (1999), 1(3), 85-87, database is CAplus.

Twelve 4-aryl(alkyl)-3-[(2-chloropyrid)-4-yl]-1,2,4-triazoline-5-thiones I (R = alkyl or aryl) were synthesized. Nine of them were good inhibitors for R. Solani (EC₅₀ were within 10.5âˆ?8.8 μg·mL^-1). Their ¹HNMR was also assigned.

Nongyaoxue Xuebao published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Chen-Gang published the artcileCarbon Dioxide Mediated Cellulose Dissolution and Derivatization to Cellulose Carbonates in a Low-pressure System, Synthetic Route of 939-99-1, the publication is Carbohydrate Polymer Technologies and Applications (2022), 100186, database is CAplus.

An effective switchable solvent system using carbon dioxide (CO₂) and 2-tert-butyl-1,1,3,3-tetramethylguanidine (BTMG) for cellulose dissolution and derivatization was developed. High concentration cellulose solution (up to 10 wt%) could be achieved by dissolving microcrystalline cellulose rapidly, within 5 min, into DMSO in presence of BTMG and 1 atm CO₂ at room temperature The cellulose-carbonate anion intermediate was characterized by ¹H and ¹³C NMR spectroscopies, emphasizing the generation of cellulose carbonate anions and protonated BTMG. Addition of organochlorides into the cellulose solution triggers a nucleophilic substitution with cellulose-carbonate anions, producing various cellulose benzyl carbonates and a cellulose-carbonate-ester with degree of substitution (DS) up to 1.83 at 1 atm CO₂ pressure and room temperature The activation energy (Ea) and Gibbs free energy change (ΔG) of CO₂-mediated dissolution and nucleophilic substitution were calculated by d. functional theory. The results showed that the nucleophilic substitution is the rate-limiting step.

Carbohydrate Polymer Technologies and Applications published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C9H8BNO2, Synthetic Route of 939-99-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Yang, Zaibo published the artcileNovel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety: Design, synthesis, and insecticidal activity, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene, the publication is Journal of Heterocyclic Chemistry (2020), 57(1), 81-88, database is CAplus.

In this study, a series of novel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety, I (R = Ph, 2-ClC₆H₄, 6-chloropyridinyl, etc.), were designed and synthesized. Bioassay results revealed that some of the target compounds possessed excellent insecticidal activities against Plutella xylostella (P. xylostella), Vegetable aphids (V. aphids), and Empoasca vitis (E. vitis), resp. In particular, compound I (R = 4-F₃CC₆H₄) revealed the best insecticidal activities against P. xylostella and V. aphids, with the 50% lethal concentration (LC₅₀) values of 1.78 and 1.61 mg/L, resp.; meanwhile, compound I (R = 5-chlorothiadiazol-2-yl) revealed the best insecticidal activity against E. vitis, with the LC₅₀ value of 1.06 mg/L, which were superior to those of the com. insecticidal agents of chlorpyrifos, beta cypermethrin, spinosad, and azadirachtin. These results indicated that novel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety could effectively inhibit P. xylostella, V. aphids, and E. vitis.

Journal of Heterocyclic Chemistry published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C4H6N2, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics