Tag: 200-300

SDS of cas: 33100-27-5In 2019 ,《Theoretical prediction of 6Li/7Li separation in solvent extraction system using Urey model》 was published in Chemical Engineering Journal (Amsterdam, Netherlands). The article was written by Cui, Li; Yang, Xia; Wang, Junfeng; He, Hongyan; Guo, Yanxia; Cheng, Fangqin; Zhang, Suojiang. The article contains the following contents:

Separation of lithium isotopes (6Li, 7Li) is a key technol. to the development and utilization of nuclear energy. In this work, we present an efficient method to theor. estimate the separation factors of 6Li/7Li in solvent extraction system based on Urey model. The approach was implemented by calculating the equilibrium separation factor of 6Li/7Li in the crown ether/Li aqueous solution [15-crown-5 (15C5), Benzo-15-crown-5 (B15C5), 12-crown-4 (12C4), Dicyclohexyl-18-Crown-6 (DH18C6)/LiX-H2O, X = Cl/I] exchange system utilizing the calculated harmonic vibrational frequencies obtained by D. Functional Theory (DFT). The results showed that Urey model can correctly predict the direction of the 6Li/7Li separation as observed in the experiments With this model, the underlying mechanisms driving the equilibrium isotope separation were elucidated further. The coordination structure of the Li complex played a dominant role in the separation of 6Li/7Li. For the solvent extraction system comprising crown ether phase and LiX aqueous solution, the crown ether with strong ability of excluding the hydrated water of Li gives a higher separation factor. The ways by which Li-O bonding of the Li-crown ether complex can be weakened, such as reducing the coordinated water mols., applying high polar solvents, performing separation from Li salt with a softer anion, are helpful to improve the separation factor of 6Li/7Li at a fixed temperature The lithium isotopic exchange is an exothermic reaction. Decreasing temperature favors the exchange reaction. This work is expected to provide guidance for the design of the exchanger and screening of the chem. exchange system for the separation of 6Li/7Li. In the experimental materials used by the author, we found 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5SDS of cas: 33100-27-5)

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. SDS of cas: 33100-27-5

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

《DMAP and PivOH-promoted amination/allenization reaction》 was published in Chemical Communications (Cambridge, United Kingdom) in 2020. These research results belong to Zhang, Bo-Sheng; Li, Yuke; Gou, Xue-Ya; Zhang, Zhe; An, Yang; Wang, Xin-Gang; Liang, Yong-Min. Quality Control of 1-Iodo-2-methoxybenzene The article mentions the following:

This report described the first DMAP and PivOH-promoted ortho-C-H amination and ipso-allenization reaction of iodobenzenes realized by Pd/norbornene cooperative catalysis. Based on control experiments and DFT calculations, the authors speculated that the three ligands have different functions and mechanism paths in the reaction. In the experiment, the researchers used many compounds, for example, 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

《Stable, yet “”naked””, azo radical anion ArNNAr- and dianion ArNNAr2- (Ar = 4-CN-2,6-iPr2-C6H2) with selective CO2 activation》 was published in Chemical Communications (Cambridge, United Kingdom) in 2020. These research results belong to Wang, Wenqing; Tan, Gengwen; Feng, Rui; Fang, Yong; Chen, Chao; Ruan, Huapeng; Zhao, Yue; Wang, Xinping. Synthetic Route of C10H20O5 The article mentions the following:

Azo radical anion (1-̇) and dianion 12- were isolated by 1- and two-electron reduction of the azo compound 1 (ArNNAr, Ar = 4-CN-2,6-iPr2-C6H2) with alkali metals, resp. The reduced species were characterized by single-crystal x-ray anal., EPR, UV and FTIR spectroscopy, as well as SQUID measurements. The filling of one and two electrons in the π* orbital of the N-N double bond of 1 leads to a half-double N-N bond in 1-̇ and a single N-N bond in 12-. The uncoordinated nature of these reduced species enables them to activate CO2. The exposure of 1 ̇- solution to CO2 gave oxalate anion C2O42-, while that of 12- solution to CO2 afforded the hydrazine dicarboxylate dianion [1-2CO2]2-, which is reversibly dissociated back to 1 and CO2 upon oxidation In the experiment, the researchers used many compounds, for example, 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Synthetic Route of C10H20O5)

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. Synthetic Route of C10H20O5

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

The author of 《Synthesis of site-specific crown ether adducts to DNA abasic sites: 8-oxo-7,8-dihydro-2′-deoxyguanosine and 2′-deoxycytidine》 were An, Na; Fleming, Aaron M.; Rosecrans, Nicole C.; Liao, Yi; Burrows, Cynthia J.. And the article was published in Methods in Molecular Biology (New York, NY, United States) in 2019. SDS of cas: 33100-27-5 The author mentioned the following in the article:

Formation of adducts to DNA is of great benefit to DNA sequencing and damage detection technol. and to enzymol. Here we describe the synthesis and characterization procedures of 18-crown-6 adducts formed to abasic (AP) sites, 8-oxo-7,8-dihydro-2′-deoxyguanosine (OG), and 2′-deoxycytidine (C) residues in DNA oligodeoxynucleotides. These crown ether adducts were used as site-specific modifications to facilitate nanopore technol. The methods described can be readily expanded to attach other suitable primary amines of interest. The results came from multiple reactions, including the reaction of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5SDS of cas: 33100-27-5)

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. SDS of cas: 33100-27-5

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

Ouyang, Wensen; Cai, Xiaoqing; Chen, Xiaojian; Wang, Jie; Rao, Jianhang; Gao, Yang; Huo, Yanping; Chen, Qian; Li, Xianwei published an article in 2021. The article was titled 《Sequential C-H activation enabled expedient delivery of polyfunctional arenes》, and you may find the article in Chemical Communications (Cambridge, United Kingdom).Quality Control of 1,2-Diphenyldisulfane The information in the text is summarized as follows:

Herein, using the multiple C-H activation strategy with versatile imidate esters RC(=NH)OEt [R = Ph, thiophen-2-yl, 4-(1H-pyrazol-1-yl)benzen-1-yl, 4-(([(1R,2S,5R)-5-methyl-2-(propan-2-yl)cyclohexyl]oxy)carbonyl)benzen-1-yl, etc.], the expedient delivery of mol. libraries of densely functionalized sulfur-containing arenes e.g., 2-(phenylthio)benzonitrile was achieved, which enabled the concise construction of biol. active mols., such as Bipenamol. The experimental process involved the reaction of 1,2-Diphenyldisulfane(cas: 882-33-7Quality Control of 1,2-Diphenyldisulfane)

1,2-Diphenyldisulfane(cas: 882-33-7) 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 1,2-Diphenyldisulfane

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

Gao, Wei-Jie; Yu, Hui-Juan; Chen, Jian; Xiao, Jing; Fang, Jing-Kun; Jia, Xiang-Rui; Peng, Chi-Fang; Shao, Guang; Kuang, Dai-Bin published their research in Chemical Engineering Journal (Amsterdam, Netherlands) in 2021. The article was titled 《Simple hole-transporting materials containing twin-carbazole moiety and unconjugated flexible linker for efficient and stable perovskite solar cells》.Product Details of 101-70-2 The article contains the following contents:

Three twin-carbazole-based hole-transporting materials (HTMs) bearing an unconjugated flexible linker and four peripheral diphenylamine groups with different methoxy positions (pp-, pm-, and po-) are first synthesized (GJ-pp, GJ-pm, and GJ-po) and successfully employed in perovskite solar cells (PSCs). The HTMs were obtained from simple synthetic steps and facile purification techniques. The thermal stability, optical and electrochem. properties, d. functional theory calculations, hole-transporting properties, X-ray diffraction, hole transfer dynamics, hydrophobic properties, surface morphol., and photovoltaic performances were measured and discussed. Device performance depends on the methoxy group positions. GJ-pp shows the best power conversion efficiency (17.23%) among the three twin-carbazole-based HTMs, and slightly lower than that of the spiro-OMeTAD-based devices (17.96%). However, the GJ-pp-based devices show outstanding thermal stability compared with the spiro-OMeTAD-based ones. Laboratory synthetic cost of GJ-pp is merely 29.0% of the purchasable spiro-OMeTAD price, and the concentration of GJ-pp is lower than that of spiro-OMeTAD (50.0 vs. 72.3 mg mL-1). The results demonstrate that the twin-carbazole moiety can endow enhanced charge transport properties due to its potential intermol. interactions, and the conjugated core is unnecessary for promising HTMs. In the part of experimental materials, we found many familiar compounds, such as Bis(4-methoxyphenyl)amine(cas: 101-70-2Product Details of 101-70-2)

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.Product Details of 101-70-2

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

《Two-dimensional triphenylene cored hole-transporting materials for efficient perovskite solar cells》 was written by Chen, Wangchao; Zhang, Hanyu; Zheng, Haofeng; Li, Haitao; Guo, Fuling; Ni, Gang; Ma, Miaolian; Shi, Chengwu; Ghadari, Rahim; Hu, Linhua. Reference of Bis(4-methoxyphenyl)amine And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2020. The article conveys some information:

Two organic hole-transporting materials comprising a two-dimensional triphenylene core and methoxyl-arylamine terminal units are developed and applied in perovskite solar cells. Enhanced photovoltaic and stability performance are obtained using TPH-T compared with those of spiro-OMeTAD. The experimental process involved the reaction of Bis(4-methoxyphenyl)amine(cas: 101-70-2Reference 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.Reference of Bis(4-methoxyphenyl)amine

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

Synthetic Route of C10H20O5In 2021 ,《Controlling the unpaired electron by electrostatic attraction in the solid state》 appeared in Chemical Communications (Cambridge, United Kingdom). The author of the article were Cui, Haiyan; Wang, Liting; Ruan, Huapeng; Liu, Min; Feng, Zhongtao; Wang, Jie; Zhao, Yue; Wang, Xinping. The article conveys some information:

One-electron reduction of 2,7-tBu2-pyrene-4,5,9,10-tetraone (1) with potassium afforded two monoradicals 1K(cryp) and 1K(18c6), a radical tetramer [1K(15c5)]4 and a radical polymer (1K)2n. Using 1K(cryp) and 1K(18c6), the authors demonstrated large spin d. modulation of an organic radical anion in the solid state by electrostatic attraction, without alternation of the mol. skeletons. In the experiment, the researchers used many compounds, for example, 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Synthetic Route of C10H20O5)

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. Synthetic Route of C10H20O5

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

In 2015,Sato, Norihiro; Tsuji, Genichiro; Sasaki, Yoshihiro; Usami, Akira; Moki, Takuma; Onizuka, Kazumitsu; Yamada, Ken; Nagatsugi, Fumi published 《A new strategy for site-specific alkylation of DNA using oligonucleotides containing an abasic site and alkylating probes》.Chemical Communications (Cambridge, United Kingdom) published the findings.Computed Properties of C9H19NO4 The information in the text is summarized as follows:

Selective chem. reactions with DNA, such as its labeling, are very useful in many applications. In this paper, we discuss a new strategy for the selective alkylation of DNA using an oligonucleotide containing an abasic site and alkylating probes. We designed three probes consisting of 2-AVP as a reactive moiety and three kinds of binding moiety with high affinity to duplex DNA. Among these probes, Hoechst-AVP probe exhibited high selectivity and efficient reactivity to thymine bases at the site opposite an abasic site in DNA. Our method is potentially useful for inducing site-directed reactions aimed at inhibiting polymerase reactions. The results came from multiple reactions, including the reaction of 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.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however. Computed Properties of C9H19NO4

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

In 2013,Mendez, Eladio; Moon, Joong Ho published 《Side chain and backbone structure-dependent subcellular localization and toxicity of conjugated polymer nanoparticles》.Chemical Communications (Cambridge, United Kingdom) published the findings.HPLC of Formula: 139115-91-6 The information in the text is summarized as follows:

The subcellular localization and toxicity of conjugated polymer nanoparticles (CPNs) are dependent on the chem. structure of the side chains and backbone. Primary amine-containing CPNs exhibit high Golgi localization with no toxicity. Incorporation of short ethylene oxide and tertiary amine side chains contributes to decreased Golgi localization and increased toxicity, resp. In addition to this study using tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate, there are many other studies that have used tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6HPLC of Formula: 139115-91-6) was used in this study.

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. HPLC of Formula: 139115-91-6

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