Month: November 2022

Nugraha, Adam F.; Kim, Songmi; Wijaya, Farid; Bae, Byungchan; Shin, Dongwon published an article in 2020, the title of the article was Synthetic approaches for poly(phenylene) block copolymers via nickel coupling reaction for fuel cell applications.Reference of 4,4′-Sulfonylbis(chlorobenzene) And the article contains the following content:

Several methods to synthesize poly(phenylene) block copolymers through the nickel coupling reaction were attempted to reduce the use of expensive nickel catalysts in polymerization The model reaction for poly(phenylene) having different types of dichlorobenzene derivative monomers illustrated the potential use of cost-effective catalysts, such as NiBr2 and NiCl2, as alternatives to more expensive catalysts (e.g., bis(1,5-cyclooctadiene)nickel(0) (Ni(COD)2)). By catalyzing the polymerization of multi-block poly(phenylene) with NiBr2 and NiCl2, random copolymers with similar mol. weights could be prepared However, these catalysts did not result in a high-mol.-weight polymer, limiting their wide scale application. Further, the amount of Ni(COD)2 could be reduced in this study by approx. 50% to synthesize poly(phenylene) multi-block copolymers, representing significant cost savings. Gel permeation chromatog. and NMR results showed that the d.p. and ion exchange capacity of the copolymers were almost the same as those achieved through conventional polymerization using 2.5 times as much Ni(COD)2. The flexible quaternized membrane showed higher chloride ion conductivity than com. Fumatech membranes with comparable water uptake and promising chem. stability. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Reference of 4,4′-Sulfonylbis(chlorobenzene)

The Article related to polyphenylene polyethersulfone block copolymer anion exchange membrane fuel cell, nickel coupling reaction, anion-exchange membranes, ion conductivity, multi-block copolymer, poly(phenylene) and other aspects.Reference of 4,4′-Sulfonylbis(chlorobenzene)

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

On December 31, 1990, Anchordoguy, Thomas J.; Carpenter, John F.; Cecchini, Christine A.; Crowe, John H.; Crowe, Lois M. published an article.Name: trimethyloxosulphonium chloride The title of the article was Effects of protein perturbants on phospholipid bilayers. And the article contained the following:

Series of alcs., amides, ureas, and sulfoxides with increasingly longer hydrocarbon chains lower progressively the thermal denaturation temperature of proteins. Several classes of compounds were investigated for effects on the stability of phospholipid vesicles. Many compounds that are known to perturb protein function also destabilize phospholipid bilayers as reflected by solute-induced loss of vesicle contents. The experimental process involved the reaction of trimethyloxosulphonium chloride(cas: 5034-06-0).Name: trimethyloxosulphonium chloride

The Article related to phospholipid membrane permeability solute perturbant structure, urea membrane destabilization, amide membrane destabilization, alc membrane destabilization, sulfoxide membrane destabilization and other aspects.Name: trimethyloxosulphonium chloride

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

Crisan, Manuela; Halip, Liliana; Bourosh, Paulina; Chicu, Sergiu Adrian; Chumakov, Yurii published an article in 2017, the title of the article was Synthesis, structure and toxicity evaluation of ethanolamine nitro/chloronitrobenzoates: a combined experimental and theoretical study.COA of Formula: C7H4ClNO4 And the article contains the following content:

Background: Nitroarom. and chloronitroarom. compounds have been a subject of great interest in industry and recently in medical-pharmaceutic field. 2-Chloro-4-nitro/2-chloro-5-nitrobenzoic acids and 4-nitrobenzoic acid are promising new agents for the treatment of main infectious killing diseases in the world: immunodeficiency diseases and tuberculosis. Results: New ethanolamine nitro/chloronitrobenzoates were synthesized and characterized by X-ray crystallog., UV-vis, FT-IR and elementary anal. techniques. The toxicity of the compounds prepared and correspondent components was evaluated using Hydractinia echinata as test system. A significant lower toxicity was observed for nitroderivative compared with chloronitro-derivatives and individual components. Crystallog. studies, together with the chem. reactivity and stability profiles resulted from d. functional theory and ab initio MO calculations, explain the particular behavior of ethanolamine 4-nitrobenzoate in biol. test. Conclusions: The exptl. and theor. data reveal the potential of these compounds to contribute to the design of new active pharmaceutical ingredients with lower toxicity. The experimental process involved the reaction of 2-Chloro-4-nitrobenzoic acid(cas: 99-60-5).COA of Formula: C7H4ClNO4

The Article related to ethanolamine nitro chloronitrobenzoate synthesis structure toxicity, chemical reactivity, nitrobenzoic and chloronitrobenzoic acids and derivatives, single crystal x-ray diffraction, toxicity and other aspects.COA of Formula: C7H4ClNO4

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

On June 3, 2022, Bolduc, Trevor G.; Lee, Cayo; Chappell, William P.; Sammis, Glenn M. published an article.Safety of tert-Butyl trichloroacetimidate The title of the article was Thionyl fluoride-mediated one-pot substitutions and reductions of carboxylic acids. And the article contained the following:

Thionyl fluoride (SOF2) is an underutilized reagent that is yet to be extensively studied for its synthetic applications. We previously reported that it is a powerful reagent for both the rapid syntheses of acyl fluorides and for one-pot peptide couplings, but the full scope of these nucleophilic acyl substitutions had not been explored. Herein, we report one-pot thionyl fluoride-mediated syntheses of peptides and amides (35 examples, 45-99% yields) that were not explored in our previous study. The scope of thionyl fluoride-mediated nucleophilic acyl substitutions was also expanded to encompass esters (24 examples, 64-99% yields) and thioesters (11 examples, 24-96% yields). In addition, we demonstrate that the scope of thionyl fluoride-mediated one-pot reactions can be extended beyond nucleophilic acyl substitutions to mild reductions of carboxylic acids using NaBH4 (13 examples, 33-80% yields). The experimental process involved the reaction of tert-Butyl trichloroacetimidate(cas: 98946-18-0).Safety of tert-Butyl trichloroacetimidate

The Article related to peptide amide one pot synthesis thionyl fluoride mediated thioester, carboxylic acid nucleophilic acyl substitution reduction thionyl fluoride mediated, amino acid peptide coupling protection and other aspects.Safety of tert-Butyl trichloroacetimidate

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

On July 31, 2021, Crump, Doug; Sharin, Tasnia; Chiu, Suzanne; O’Brien, Jason M. published an article.Category: chlorides-buliding-blocks The title of the article was In Vitro Screening of 21 Bisphenol A Replacement Alternatives: Compared with Bisphenol A, the Majority of Alternatives Are More Cytotoxic and Dysregulate More Genes in Avian Hepatocytes. And the article contained the following:

An avian in vitro screening approach was used to determine the effects of 21 bisphenol A (BPA) alternatives. Cytotoxicity and dysregulation of genes associated with estrogen response and other toxicol. relevant pathways evoked by these alternatives were compared with BPA. Most of the BPA alternatives (15/21) were equally or more cytotoxic than BPA in chicken embryonic hepatocytes; variability in cell viability was associated with chem. structure and the log octanol-water partition coefficient (logP) values. A neg. linear relationship (r2 = 0.745; p = 0.49-07; n = 18) was observed between logP and the log median lethal concentration (logLC50) values. The least cytotoxic BPA alternatives elicited the greatest gene dysregulation and, overall, most of the alternatives altered more genes than BPA (measured with a custom polymerase chain reaction array). This overall approach shows promise for use as a screen for hazard-based prioritization of BPA replacement alternatives and to ideally identify those that may be less harmful and/or require addnl. toxicity testing. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Category: chlorides-buliding-blocks

The Article related to gallus hepatocyte bisphenol a alternatives cytotoxicity gene expression, avian toxicity, contaminants of emerging concern, endocrine-disrupting compounds, in vitro toxicology, risk assessment and other aspects.Category: chlorides-buliding-blocks

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

Bunik, Victoria I.; Artiukhov, Artem V.; Kazantsev, Alexey V.; Aleshin, Vasily A.; Boyko, Alexandra I.; Ksenofontov, Alexander L.; Lukashev, Nikolay V.; Graf, Anastasia V. published an article in 2022, the title of the article was Administration of phosphonate inhibitors of dehydrogenases of 2-oxoglutarate and 2-oxoadipate to rats elicits target-specific metabolic and physiological responses.SDS of cas: 35444-44-1 And the article contains the following content:

In vitro and in cell cultures, succinyl phosphonate (SP) and adipoyl phosphonate (AP) selectively target dehydrogenases of 2-oxoglutarate (OGDH, encoded by OGDH/OGDHL) and 2-oxoadipate (OADH, encoded by DHTKD1), resp. To assess the selectivity in animals, the effects of SP, AP, and their membrane-penetrating tri-Et esters (TESP and TEAP) on the rat brain metabolism and animal physiol. are compared. Opposite effects of the OGDH and OADH inhibitors on activities of OGDH, malate dehydrogenase, glutamine synthetase, and levels of glutamate, lysine, citrulline, and carnosine are shown to result in distinct physiol. responses. ECG is changed by AP/TEAP, whereas anxiety is increased by SP/TESP. The potential role of the ester moiety in the uncharged precursors of the 2-oxo acid dehydrogenase inhibitors is estimated TMAP is shown to be less efficient than TEAP, in agreement with lower lipophilicity of TMAP vs. TEAP. Non-monotonous metabolic and physiol. impacts of increasing OADH inhibition are revealed. Compared to the non-treated animals, strong inhibition of OADH decreases levels of tryptophan and beta-aminoisobutyrate and activities of malate dehydrogenase and pyruvate dehydrogenase, increasing the R-R interval of ECG. Thus, both metabolic and physiol. actions of the OADH-directed inhibitors AP/TEAP are different from those of the OGDH-directed inhibitors SP/TESP, with the Et ester being more efficient than Me ester. The experimental process involved the reaction of Methyl 6-chloro-6-oxohexanoate(cas: 35444-44-1).SDS of cas: 35444-44-1

The Article related to phosphonate oxoglutarate oxoadipate dehydrogenase inhibitor, 2-oxoadipate dehydrogenase, 2-oxoglutarate dehydrogenase, dhtkd1, phosphonate analog of 2-oxo acid, regulation of brain metabolism and other aspects.SDS of cas: 35444-44-1

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

On March 20, 2020, Soni, Arvind S.; Vacariu, Condarache M.; Chen, Jeff Y.; Tanner, Martin E. published an article.Quality Control of tert-Butyl trichloroacetimidate The title of the article was Synthesis of a meso-oxa-diaminopimelic acid containing peptidoglycan pentapeptide and coupling to the GlcNAc-anhydro-MurNAc disaccharide. And the article contained the following:

The syntheses of peptidoglycan (PG)-derived peptides containing meso-diaminopimelic acid (meso-Dap) are typically quite lengthy due to the need to prepare orthogonally protected meso-Dap. In this work, the preparation of the PG pentapeptide containing the isosteric analog meso-oxa-Dap is described. The synthesis relies on the ring opening of a peptide embedded aziridine via the attack of a serine residue. The pentapeptide was attached to a GlcNAc-anhydro-MurNAc disaccharide, to produce a putative substrate for the AmpG pore protein. The experimental process involved the reaction of tert-Butyl trichloroacetimidate(cas: 98946-18-0).Quality Control of tert-Butyl trichloroacetimidate

The Article related to meso oxadiaminopimelic acid peptidoglycan pentapeptide synthesis coupling disaccharide, peptide cyclization coupling aziridine peptide ring opening heine reaction, ampg pore protein substrate and other aspects.Quality Control of tert-Butyl trichloroacetimidate

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

On April 6, 2022, Markushyna, Yevheniia; Antonietti, Markus; Savateev, Aleksandr published an article.Computed Properties of 80-07-9 The title of the article was Synthesis of Sulfonyl Chlorides from Aryldiazonium Salts Mediated by a Heterogeneous Potassium Poly(heptazine imide) Photocatalyst. And the article contained the following:

A heterogeneous transition metal-free material, a type of carbon nitride photocatalyst, potassium poly(heptazine imide), was employed to produce sulfonyl chlorides from arenediazonium salts under mild conditions (visible light irradiation, room temperature) with 50-95% yields. The method was suitable for the synthesis of both electron rich and electron deficient compounds and it showed high tolerance toward different functional groups (halides, ester, nitro, cyano groups). Thus, a sustainable photocatalytic alternative to the Meerwein chlorosulfonylation reaction was offered. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Computed Properties of 80-07-9

The Article related to potassium poly heptazine imide preparation surface area, thionyl chloride phenyl diazonium tetrafluoroborate heptazine imide catalyst chlorosulfonylation, phenyl sulfonyl chloride preparation and other aspects.Computed Properties of 80-07-9

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

On February 15, 2018, Kaur, Avneet; Pathak, Dharam P.; Sharma, Vidushi; Wakode, Sharad published an article.Related Products of 99-60-5 The title of the article was Synthesis, biological evaluation and docking study of a new series of di-substituted benzoxazole derivatives as selective COX-2 inhibitors and anti-inflammatory agents. And the article contained the following:

A new series of substituted-N-(3,4-dimethoxyphenyl)-benzoxazole derivatives 13a-13p was synthesized and evaluated in vitro for their COX (I and II) inhibitory activity, in vivo anti-inflammatory and ulcerogenic potential. Compounds 13d, 13h, 13k, 13l and 13n exhibited significant COX-2 inhibitory activity and selectivity towards COX-2 over COX-1. These selected compounds were screened for their in vivo anti-inflammatory activity by carrageenan induced rat paw edema method. Among these compounds, 13d (2-chloro-N-(2-(3,4-dimethoxyphenyl)benzoxazol-5-yl)benzamide) was the most promising analogs of the series with percent inhibition of 84.09 and IC50 value of 0.04 μM and 1.02 μM (COX-2 and COX-1) resp. Furthermore, ulcerogenic study was performed and tested compounds (13d, 13h, 13k, 13l) demonstrated a significant gastric tolerance than ibuprofen. Mol. docking study was also performed with resolved crystal structure of COX-2 to understand the binding mechanisms of newly synthesized inhibitors in the active site of COX-2 enzyme and the results were found to be concordant with the biol. evaluation studies of the compounds These newly synthesized inhibitors also showed acceptable pharmacokinetic profile in the in silico ADME/T analyses. The experimental process involved the reaction of 2-Chloro-4-nitrobenzoic acid(cas: 99-60-5).Related Products of 99-60-5

The Article related to benzoxazole derivative preparation cyclooxygenase cox2 inhibitor antiinflammatory ulcer, anti-inflammatory activity, benzoxazole derivatives, selective cox-2 inhibitors, ulcerogenic liability and other aspects.Related Products of 99-60-5

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

On August 31, 2021, Khokra, Sukhbir Lal; Kaur, Simranjeet; Banwala, Sahil; Wadhwa, Karan; Husain, Asif published an article.Product Details of 99-60-5 The title of the article was Synthesis, Molecular Docking, and Biological Evaluation of Some Novel 2- (5-Substituted 1,3,4-oxadiazole-2-yl)-1,3-benzothiazole Derivatives as Anticonvulsant Agents. And the article contained the following:

Benzothiazole is an organosulfur heterocyclic compound that has a considerable place in drug discovery due to significant pharmacol. actions. The main objective of the present study was to synthesize some novel 2-(5-substituted 1,3,4-oxadiazole-2-yl)-1,3-benzothiazole derivatives and evaluate them for their anticonvulsant activity using in silico and in vivo methods. A set of sixteen 2-(5-substituted 1, 3, 4-oxadiazole-2-yl)-1, 3-benzothiazole derivatives were prepared using multi-step reactions starting from o-amino-thiophenol and characterized by suitable spectral techniques. The synthesized compounds were evaluated for anticonvulsant activity using in silico and in vivo methods. In silico mol. docking study was performed using Molegro Virtual Docker software to analyze binding modes of compounds with the internal ligand of PDB ID: 1OHY and 1OHV; and in vivo pharmacol. activities were tested for both generalized tonic-clonic seizures and generalized absence (petit mal) seizures using Maximal Elec. Shock and PTZ-induced seizure models, resp. Some new 2-(5-substituted-1,3,4-oxadiazole-2-yl)-1,3- benzothiazole (5a-5p) were successfully synthesized by finally refluxing 1, 3-benzothiazole-2-carboxyhydrazide with different aromatic acids in phosphoryl chloride. Docking results showed that compounds 5c, 5j, and 5m were found to have the highest number of H-bond interactions; i.e. 4, 4, and 7 resp. with target proteins 1OHY and 6, 3, and 4 resp. with target protein 1OHV, whereas phenytoin showed only two H-bonding with both proteins. In the Maximal electroshock seizure method, the synthesized compounds 5h, 5k and 5o demonstrated potent anticonvulsant activity against the tonic seizure with a significant decrease in tonic hind leg extension period with a mean duration of 7.9, 7.4, and 7.0 s resp., as compared to the other synthesized compounds In contrast, in the PTZ-induced seizure model, compounds 5c, 5h, and 5m showed protection against clonic convulsion with significant elevation in the onset time of clonic convulsion at 311.2, 308.0, and 333.11 s, resp. Thus, from the results, it can be concluded that compound 5h, a benzothiazole derivative endowed with an oxadiazole ring, can be developed as a potential anticonvulsant agent. The experimental process involved the reaction of 2-Chloro-4-nitrobenzoic acid(cas: 99-60-5).Product Details of 99-60-5

The Article related to oxadiazole benzothiazole derivative anticonvulsant agent mol docking, benzothiazole-based oxadiazoles derivatives, anticonvulsant agents, molecular docking, phenytoin, spectroscopy., synthesis and other aspects.Product Details of 99-60-5

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