Tag: 200-300

In 2019,Journal of Physical Chemistry C included an article by Yang, Yi-Fei; Chiou, Chun-Yu; Liu, Chuan-Wen; Chen, Cheng-Lung; Lee, Jyh-Tsung. Category: ethers-buliding-blocks. The article was titled 《Crown Ethers as Electrolyte Additives To Modulate the Electrochemical Potential of Lithium Organic Batteries》. The information in the text is summarized as follows:

Organic batteries have attracted much attention because of their flexibility, high-power densities, and highly designable structures of electrode-active materials. The electrochem. potential of the batteries can be modulated using different organic redox species or by structural modification of the redox unit centers. In this study, the electrochem. potential of lithium organic radical batteries is modulated, without the structural modification of the redox unit centers. Two different crown ethers, 12-crown-4 (12C4) and 15-crown-5 (15C5), served as electrolyte additives to increase the electrochem. potential of the batteries. An average discharge voltage can be increased to 3.90 V through the electrolyte system using various concentrations of the electrolyte salt and crown ethers. The addition of 1 equiv of 12C4 to the Li|0.25 M LiClO4-ethylene carbonate/diethyl carbonate (= 1/1, volume/volume|poly(2,2,6,6-tetramethylpiperidin-1-oxy-4-yl methacrylate) cells significantly improved the capacity retention up to 21% after 300 cycles at a current rate of 3C. Furthermore, the structures and system energies of the lithium-crown ether complexes are investigated using d. functional theory calculations1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Category: ethers-buliding-blocks) was used in this study.

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2019,Chemistry – A European Journal included an article by Magne, Valentin; Ball, Liam T.. Electric Literature of C7H7IO. The article was titled 《Synthesis of Air-stable, Odorless Thiophenol Surrogates via Ni-Catalyzed C-S Cross-Coupling》. The information in the text is summarized as follows:

An efficient catalytic method for the preparation of S-(hetero)aryl isothiouronium salts ArSC(NH2)=NH2+ 3,5-(NO2)2C6H3C(O)O- (Ar = Ph, thiophen-2-yl, 1H-pyrazol-4-yl, etc.) and demonstrates that these air-stable, odorless solids serving as user-friendly sources of thiophenols have been synthesized. Diverse isothiouronium salts featuring synthetically useful functionality are readily accessible by nickel-catalyzed C-S cross-coupling of (hetero)aryl iodides ArI and thiourea. Convenient, chromatog.-free isolation of these salts is achieved by precipitation, allowing the methodol. to be applied directly to large scales. Thiophenols are liberated from the corresponding isothiouronium salts upon treatment with a weak base, enabling an in situ release/S-functionalization strategy that entirely negates the need to isolate, purify or manipulate these noxious reagents. In the experiment, the researchers used 1-Iodo-2-methoxybenzene(cas: 529-28-2Electric Literature of C7H7IO)

1-Iodo-2-methoxybenzene(cas: 529-28-2) is a useful synthetic intermediate. It can be used in the synthesis of piperidinyl diaminopyrimidines as cyclin-dependent kinase inhibitors with antitumor activity and polysubstituted benzofuran derivatives as novel inhibitors of parasitic growth.Electric Literature of C7H7IO

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2019,Turkish Journal of Chemistry included an article by Osipova, Victoria; Polovinkina, Maria; Osipova, Anastasia; Gracheva, Yulia; Okhlobystin, Andrey. Synthetic Route of C12H10S2. The article was titled 《In silico and in vitro evaluation of the biological activity of some organic sulfur-containing compounds》. The information in the text is summarized as follows:

It was predicted, using the Prediction of Activity Spectra for Substances online software, that organic sulfur-containing compounds 2,6-di-tert-butyl-4-mercaptophenol (1), 2,6-di-tert-butyl-4-(3-mercaptopropyl)phenol (2), bis-3-[3,5-di-tert-butyl-4-(hydroxyphenyl)propyl] sulfide (3), bis(3,5-di-tert-butyl-4-hydroxyphenyl) disulfide (4), di-Ph disulfide (5), dibenzyl disulfide (6), di-Bu disulfide (7), di-tert-Bu disulfide (8), diallyl disulfide (9), and Me Pr trisulfide (10) could possess antioxidant activity and act as active scavengers of oxygen metabolites. The effect of the organic sulfur compounds on the rate of generation O-·2 on adrenaline oxidation in an alk. medium and on the ability of the biopreparation, based on the liver of Russian sturgeon, to deactivate O-·2 was studied. The effect of the organic sulfur compounds on the rate of O-·2 generation in the model system of the quinoid oxidation of adrenaline in an alk. medium and on the ability of the biopreparation to deactivate O-·2 was studied. It was found that O-·2 generation rate decreased in the presence of the studied compounds, evidencing for their antiradical activity. Increase of superoxide dismutation activity of the biopreparation in the presence of compounds 1-10 was also shown, and this fact could indicate their ability to increase the antioxidant status and decrease the probability of oxidative stress development. The results of the forecast were consistent with the data of the exptl. studies. In addition to this study using 1,2-Diphenyldisulfane, there are many other studies that have used 1,2-Diphenyldisulfane(cas: 882-33-7Synthetic Route of C12H10S2) was used in this study.

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Ethers do have nonbonding electron pairs on their oxygen atoms, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Synthetic Route of C12H10S2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The author of 《Unraveling the Structure-Property Relationship of Molecular Hole-Transporting Materials for Perovskite Solar Cells》 were Fang, Lingyi; Zheng, Aibin; Ren, Ming; Xie, Xinrui; Wang, Peng. And the article was published in ACS Applied Materials & Interfaces in 2019. Application In Synthesis of Bis(4-methoxyphenyl)amine The author mentioned the following in the article:

Clarifying the structural basis and microscopic mechanism lying behind electronic properties of mol. semiconductors is of paramount importance in further material design to enhance the performance of perovskite solar cells. In this paper, three conjugated quasilinear segments of 9,9-dimethyl-9H-fluorene, 9,9-dimethyl-2,7-diphenyl-9H-fluorene, and 2,6-diphenyldithieno[3,2-b:2′,3′-d]thiophene are end-capped with two bis(4-methoxyphenyl)amino groups for structurally simple mol. semiconductors Z1, Z2, and Z3, which crystallize in the monoclinic P21/n, triclinic P1̅, and monoclinic C2/c space groups, resp. The modes and energies of intermol. noncovalent interactions in various closely packed dimers extracted from single crystals are computed based on the quantum theory of atoms in mols. and energy decomposition anal. Transfer integrals, reorganization energies, and center-of-mass distances in these dimers as well as band structures of single crystals are also calculated to define the theor. limit of hole transport and microscopic transport pictures. Joint X-ray diffraction and space-charge-limiting current measurements on solution-deposited films suggest the dominant role of crystallinity in thin-film hole mobility. Photoelectron spectroscopy and photoluminescence measurements show that an enhanced interfacial interaction between the perovskite and Z3 could attenuate the adverse impact of reducing the energetic driving force of hole extraction Our comparative studies show that the mol. semiconductor Z3 with a properly aligned HOMO energy level and a high thin-film mobility can be employed for efficient perovskite solar cells, achieving a good power conversion efficiency of 20.84%, which is even higher than that of 20.42% for the spiro-OMeTAD control. In the experiment, the researchers used many compounds, for example, Bis(4-methoxyphenyl)amine(cas: 101-70-2Application In Synthesis of Bis(4-methoxyphenyl)amine)

Bis(4-methoxyphenyl)amine(cas: 101-70-2) is a diphenylamine derivative used as a chemical additive for cured rubber.Bis(4-methoxyphenyl)amine is highly toxic and may potentially induce chromosome abberation.Application In Synthesis of Bis(4-methoxyphenyl)amine

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2018,Uno, Brice E.; Deibler, Kristine K.; Villa, Carlos; Raghuraman, Arjun; Scheidt, Karl A. published 《Conjugate Additions of Amines to Maleimides via Cooperative Catalysis》.Advanced Synthesis & Catalysis published the findings.Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate The information in the text is summarized as follows:

A cooperative system comprising of a lithium Lewis acid and amine base significantly enhances the rate of the conjugate addition of a wide array of amines such as n-hexan-1-amine, p-tolylmethylamine, morpholine, (S)-Me pyrrolidine-2-carboxylate, etc. to maleimides RX (R = 2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl; X = Ph, Bn, Et, H). This operationally simple, scalable method provides mono-addition products I (Y = n-hexylamino, 4-CH3C6H4CH2NH2, morpholin-4-yl, (2S)-2-[methoxycarbonyl]pyrrolidin-1-yl, etc.) in high yields and purity. This conjugation was successfully applied to the kinase inhibitor crizotinib in a chemoselective ligation to create novel fluorescent probe. In the experiment, the researchers used many compounds, for example, tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate)

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. Quality Control of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2013,Chen, Haijun; Yang, Zhengduo; Ding, Chunyong; Chu, Lili; Zhang, Yusong; Terry, Kristin; Liu, Huiling; Shen, Qiang; Zhou, Jia published 《Discovery of O-Alkylamino-Tethered Niclosamide Derivatives as Potent and Orally Bioavailable Anticancer Agents》.ACS Medicinal Chemistry Letters published the findings.Computed Properties of C9H19NO4 The information in the text is summarized as follows:

Niclosamide has been identified to potently inhibit the activation, nuclear translocation, and transactivation of STAT3. Nevertheless, the poor aqueous solubility and bioavailability of niclosamide have hindered its further clin. development for cancer therapy. To discover new mols. with enhanced druglike properties, a series of novel O-alkylamino-tethered derivatives of niclosamide have been designed, synthesized, and biol. evaluated. Among them, compound I·HCl (HJC0152) has been demonstrated to significantly suppress MDA-MB-231 xenograft tumor growth in vivo (i.p. and po), indicating its great potential as efficacious and orally bioavailable therapeutics for human cancer. In the part of experimental materials, we found many familiar compounds, such as tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Computed Properties of C9H19NO4)

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers.Ethers do have nonbonding electron pairs on their oxygen atoms, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Computed Properties of C9H19NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Quality Control of 1,2-DiphenyldisulfaneIn 2019 ,《Unsymmetrical Disulfides Synthesis via Sulfenium Ion》 was published in Chemistry – An Asian Journal. The article was written by Parida, Amarchand; Choudhuri, Khokan; Mal, Prasenjit. The article contains the following contents:

An umpolung approach for the synthesis of unsym. disulfides via sulfenium ion was reported. In-situ generated electrophilic sulfenium ion from electron-rich thiols reacted with second thiols to yield unsym. disulfides. Using an iodine catalyst and 4-dimethylaminopyridine (DMAP)/water as promoter, the target synthesis were achieved in one-pot under aerobic condition. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diphenyldisulfane(cas: 882-33-7Quality Control of 1,2-Diphenyldisulfane)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.The C-O bonds that comprise simple ethers are strong. They are unreactive toward all but the strongest bases. Although generally of low chemical reactivity, they are more reactive than alkanes. Quality Control of 1,2-Diphenyldisulfane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Quality Control of 1-Iodo-2-methoxybenzeneIn 2019 ,《Metal-free synthesis of gem-silylboronate esters and their Pd(0)-catalyzed cross-coupling with aryliodides》 was published in Organic & Biomolecular Chemistry. The article was written by Wu, Chaoqiang; Bao, Zhicheng; Xu, Xing; Wang, Jianbo. The article contains the following contents:

A transition-metal-free method for the synthesis of gem-silylboronate esters with arylboronic acids and trimethylsilyldiazomethane (TMSCHN2) has been developed. This transformation is a straightforward homologation of arylboronic acids and features wide substrate scope and good functional-group tolerance. The gem-silylboronate esters undergo efficient Suzuki-Miyaura cross-coupling with aryliodides and the silyl group of the product can be further functionalized. Tertiary carbon centers with different substituents can be constructed successfully by selective and sequential functionalization. The experimental process involved the reaction of 1-Iodo-2-methoxybenzene(cas: 529-28-2Quality Control of 1-Iodo-2-methoxybenzene)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Quality Control of 1-Iodo-2-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthetic Route of C7H7IOIn 2020 ,《Chemoselective Rhodium-Catalyzed Borylation of Bromoiodoarenes Under Mild Conditions》 appeared in Journal of Organic Chemistry. The author of the article were Varni, Anthony J.; Bautista, Michael V.; Noonan, Kevin J. T.. The article conveys some information:

A chemoselective rhodium-catalyzed borylation has been developed for the preparation of aryl boronate esters. The reaction proceeds under mild conditions with excellent selectivity for C-I bonds in bromoiodoarenes and exhibits broad functional group tolerance. This procedure can act as a complementary approach toward bifunctional arenes along with other metal-catalyzed borylations. Addnl., the reaction’s utility in the preparation of monomers for metal-catalyzed cross-coupling polymerization is demonstrated. The experimental part of the paper was very detailed, including the reaction process of 1-Iodo-2-methoxybenzene(cas: 529-28-2Synthetic Route of C7H7IO)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Synthetic Route of C7H7IO

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

COA of Formula: C10H20O5In 2020 ,《Supramolecular assemblies based on crown- and phosphoryl-substituted phthalocyanines and their metal complexes in microheterogeneous media》 appeared in Russian Chemical Bulletin. The author of the article were Goldshleger, N. F.; Lapshina, M. A.; Baulin, V. E.; Shiryaev, A. A.; Gorbunova, Yu. G.; Tsivadze, A. Yu.. The article conveys some information:

Abstract: The review is concerned with studies on peculiar features of supramol. organization of phthalocyanines (Pc) bearing complex-forming substituents (15-crown-5, 2-oxyphenylphosphonic acid residues) in organized aqueous microheterogeneous media based on cationic and anionic surfactants, bile salts (BS) including sodium deoxycholate (SDC), as well as polyelectrolytes and amphiphilic polymers including a phosphate buffer (pH 7.4). Organized, SDC-based fluorescence-active phthalocyanine-containing hydrogels obtained for the first time are also considered. In vitro accumulation and localization of Pc in human cervical adenocarcinoma cells, HeLa, as well as the photochem. and sensitizing properties of Pc including light cytotoxicity and photoinduced generation of reactive oxygen species were demonstrated taking octa-crown-substituted magnesium phthalocyaninate as an example.1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5COA of Formula: C10H20O5) was used in this study.

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. COA of Formula: C10H20O5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem