Tag: 200-300

Song, Qiuling; Feng, Qiang; Yang, Kai published an article on January 17 ,2014. The article was titled 《Synthesis of primary amides via copper-catalyzed aerobic decarboxylative ammoxidation of phenylacetic acids and α-hydroxyphenylacetic acids with ammonia in water》, and you may find the article in Organic Letters.Category: ethers-buliding-blocks The information in the text is summarized as follows:

A Cu2O-catalyzed aerobic oxidative decarboxylative ammoxidation to primary benzamides from phenylacetic acids and α-hydroxyphenylacetic acids is developed. A variety of primary benzamides could be prepared smoothly, in good to excellent yields, by means of a one-pot domino protocol combining decarboxylation, dioxygen activation, oxidative C-H bond functionalization, and amidation reactions. After reading the article, we found that the author used 2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9Category: ethers-buliding-blocks)

2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. Category: ethers-buliding-blocks They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however.

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

Application In Synthesis of 1-Iodo-2-methoxybenzeneIn 2019 ,《Sulfenamide-enabled ortho thiolation of aryl iodides via palladium/norbornene cooperative catalysis》 was published in Nature Communications. The article was written by Li, Renhe; Zhou, Yun; Yoon, Ki-Young; Dong, Zhe; Dong, Guangbin. The article contains the following contents:

A general ortho thiolation of common aryl and heteroaryl iodides RI (R = 2-methylphenyl, 1-naphthyl, quinolin-5-yl, etc.) via palladium-norbornene cooperative catalysis is reported. Using this approach, an aryl or alky sulfur moiety can be site-selectively introduced at the arene ortho position without using sterically or electronically biased substrates. The arene ipso functionalization is simultaneously achieved through Heck, Suzuki or Sonogashira termination. The reaction is enabled by a unique class of electrophiles in palladium-norbornene cooperative catalysis, which are sulfenamides such as N-phenyl-N-(phenylsulfanyl)formamide, 1-(phenylsulfanyl)pyrrolidin-2-one, 1-(phenylsulfanyl)azepan-2-one, etc. derived from seven-membered lactams. The broad substrates scope and high chemoselectivity could make this method attractive for synthesis of complex sulfur-containing aromatic compounds, e.g., I. The experimental part of the paper was very detailed, including the reaction process of 1-Iodo-2-methoxybenzene(cas: 529-28-2Application In Synthesis 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.Application In Synthesis of 1-Iodo-2-methoxybenzene

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

Zhu, Hongwei; Shen, Zhongjin; Pan, Linfeng; Han, Jianlei; Eickemeyer, Felix T.; Ren, Yameng; Li, Xianggao; Wang, Shirong; Liu, Hongli; Dong, Xiaofei; Zakeeruddin, Shaik M.; Hagfeldt, Anders; Liu, Yuhang; Gratzel, Michael published their research in ACS Energy Letters in 2021. The article was titled 《Low-Cost Dopant Additive-Free Hole-Transporting Material for a Robust Perovskite Solar Cell with Efficiency Exceeding 21%》.Related Products of 101-70-2 The article contains the following contents:

Developing hole-transporting materials (HTMs) with appropriate mol. configuration and charge mobility is important to improve perovskite solar cell (PSC) photovoltaic performance and their feasibility for commercialization. In this work, a novel pyramidal-shaped low-cost HTM coded MeOTTVT is prepared through extension of π-conjugation based on a triphenylamine core. Carbon-carbon double bonds are introduced between the core and p-methoxyl triphenylamine to improve the planarity of the HTM, favoring intermol. stacking of MeOTTVT and thus improving the hole mobility of the corresponding hole-transporting layer (HTL). The p-methoxyl triphenylamine-endowed HTM benefits from a HOMO level well-aligned with the perovskite active layer, facilitating effective hole extraction The champion PSC using an MeOTTVT-based dopant additive-free HTL yielded a power conversion efficiency (PCE) up to 21.30%, which is considered one of the best-performing PSCs employing a dopant additive-free small mol. HTM. In addition, the MeOTTVT-based dopant additive-free HTL exhibits outstanding thermal stability and high glass-transition temperature (Tg = 137.1 °C), combined with a more hydrophobic surface; PSCs based on an MeOTTVT dopant additive-free HTL exhibit outstanding stability against moisture, 1 sun illumination, and thermal stress. In the experiment, the researchers used Bis(4-methoxyphenyl)amine(cas: 101-70-2Related Products 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.Related Products of 101-70-2

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

Related Products of 33100-27-5In 2019 ,《Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane》 appeared in Nature Communications. The author of the article were Liu, Xin; Li, Yi; Xue, Jiandang; Zhu, Weikang; Zhang, Junfeng; Yin, Yan; Qin, Yanzhou; Jiao, Kui; Du, Qing; Cheng, Bowen; Zhuang, Xupin; Li, Jianxin; Guiver, Michael D.. The article conveys some information:

Proton exchange membranes with short-pathway through-plane orientated proton conductivity are highly desirable for use in proton exchange membrane fuel cells. Magnetic field is utilized to create oriented structure in proton exchange membranes. Previously, this has only been carried out by proton nonconductive metal oxide-based fillers. Here, under a strong magnetic field, a proton-conducting paramagnetic complex based on ferrocyanide-coordinated polymer and phosphotungstic acid is used to prepare composite membranes with highly conductive through-plane-aligned proton channels. Gratifyingly, this strategy simultaneously overcomes the high water-solubility of phosphotungstic acid in composite membranes, thereby preventing its leaching and the subsequent loss of membrane conductivity The ferrocyanide groups in the coordinated polymer, via redox cycle, can continuously consume free radicals, thus helping to improve the long-term in situ membrane durability. The composite membranes exhibit outstanding proton conductivity, fuel cell performance and durability, compared with other types of hydrocarbon membranes and industry standard Nafion 212. In the experiment, the researchers used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Related Products of 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. Related Products of 33100-27-5

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

Recommanded Product: 139115-91-6In 2011 ,《Ionic polypeptides with unusual helical stability》 appeared in Nature Communications. The author of the article were Lu, Hua; Wang, Jing; Bai, Yugang; Lang, Jason W.; Liu, Shiyong; Lin, Yao; Cheng, Jianjun. The article conveys some information:

Water-soluble peptides that adopt stable helical conformations are attractive motifs because of their importance in basic science and their broad utility in medicine and biotechnol. Incorporating charged amino-acid residues to improve peptide solubility, however, usually leads to reduced helical stability because of increased side-chain charge repulsion, reduced side-chain hydrophobicity and the disruption of intramol. hydrogen bonding. Here, we show that water-soluble, ultra-stable α-helical polypeptides can be produced by elongating charge-containing amino-acid side chains to position the charges distally from the polypeptide backbone. The strategy has been successfully applied to the design and synthesis of water-soluble polypeptides bearing long, charged side chains and various functional moieties that possess unusual helical stability against changing environmental conditions, including changes in the pH and temperature and the presence of denaturing reagents.tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Recommanded Product: 139115-91-6) was used in this study.

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers.The C-O bonds that comprise simple ethers are strong. Recommanded Product: 139115-91-6 They are unreactive toward all but the strongest bases. Although generally of low chemical reactivity, they are more reactive than alkanes.

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

Kawamoto, Takuji; Morioka, Tsubasa; Noguchi, Kohki; Curran, Dennis P.; Kamimura, Akio published an article in 2021. The article was titled 《Inverse Hydroboration of Imines with NHC-Boranes Is Promoted by Diphenyl Disulfide and Visible Light》, and you may find the article in Organic Letters.HPLC of Formula: 882-33-7 The information in the text is summarized as follows:

The authors describe a simple and efficient procedure for nucleophilic borylation of imines in the absence of a photoredox catalyst. Visible light irradiation of an MeCN solution of an imine, an NHC-borane, and di-Ph disulfide (10 mol %) provides various stable α-amino NHC-boranes in good yields. The reaction proceeds via addition of a nucleophilic boryl radical to an imine, followed by H abstraction from thiophenol, which is generated from NHC-borane and di-Ph disulfide. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diphenyldisulfane(cas: 882-33-7HPLC of Formula: 882-33-7)

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

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

《Self-Assembled Multilayer Iron(0) Nanoparticle Catalyst for Ligand-Free Carbon-Carbon/Carbon-Nitrogen Bond-Forming Reactions》 was published in Organic Letters in 2020. These research results belong to Akiyama, Toshiki; Wada, Yuki; Yamada, Makito; Shio, Yasunori; Honma, Tetsuo; Shimoda, Shuhei; Tsuruta, Kazuki; Tamenori, Yusuke; Haneoka, Hitoshi; Suzuki, Takeyuki; Harada, Kazuo; Tsurugi, Hayato; Mashima, Kazushi; Hasegawa, Jun-ya; Sato, Yoshihiro; Arisawa, Mitsuhiro. Quality Control of 1-Iodo-2-methoxybenzene The article mentions the following:

Self-assembled multilayer iron(0) nanoparticles (NPs, 6-10 nm), namely, sulfur-modified Au-supported Fe(0) [SAFe(0)], were developed for ligand-free one-pot carbon-carbon/carbon-nitrogen bond-forming reactions. SAFe(0) was successfully prepared using a well-established metal-nanoparticle catalyst preparative protocol by simultaneous in situ metal NP and nanospace organization (PSSO) with 1,4-bis(trimethylsilyl)-1,4-dihydropyrazine (Si-DHP) as a strong reducing agent. SAFe(0) was easy to handle in air and could be recycled with a low iron-leaching rate in reaction cycles. 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) 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.Quality Control of 1-Iodo-2-methoxybenzene

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

The author of 《Microfriction correction factor to the Stokes-Einstein equation for small molecules determined by NMR diffusion measurements and hydrodynamic modelling》 were Dvorak, Petr; Soltesova, Maria; Lang, Jan. And the article was published in Molecular Physics in 2019. Computed Properties of C10H20O5 The author mentioned the following in the article:

The Stokes-Einstein relationship relating the self-diffusion coefficient with the size of a diffusing particle (a hydrodynamic radius) breaks down in case of small mols. We present a novel method extending the range of validity of the Stokes-Einstein relationship by means of introducing a mol.-specific microfriction correction factor. This factor equals to 1 in the ordinary form of the Stokes-Einstein formula for ‘stick’ boundary conditions when mols. of solvent are much smaller than the diffusing particle. We have determined the microfriction correction factors for series of small mols. (ranging in size from ethanol to 18-crown-6 ether and tetrakis(trimethylsilyl)silane) in a dilute hexane solution by a concerted use of the NMR diffusion measurements and the mol. hydrodynamic calculations Both of the tested hydrodynamic modeling programs, HydroNMR (Garcia de la Torre et al., J. Magn. Reson. 2000, 147, 138-146) and DiTe (Barone et al., J. Comput. Chem. 2008, 30, 2-13) provided very similar results after initial calibration on a mol. system, which is within the validity range of the Stokes-Einstein relationship (fullerene in hexane solution in this work). In the experimental materials used by the author, we found 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Computed Properties 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. Computed Properties of C10H20O5

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

《C-C and C-S Coupling Catalyzed by Supported Cu(II) on Nano CoFe2O4》 was written by Tamoradi, Taiebeh; Masoumeh Mousavi, Seyedeh; Mohammadi, Masoud. COA of Formula: C7H7IO And the article was included in ChemistrySelect in 2020. The article conveys some information:

A new magnetically recoverable copper nanocatalyst was readily prepared and structurally characterized by FT-IR, SEM, EDX, X-ray map and XRD techniques. The prepared nanocatalyst exhibited efficient catalytic activity in C-S and C-C coupling reactions, afforded di-Ph sulfide and α,β-unsaturated esters RC=CR1 [R = Ph, 4-MeC6H4, 4ClC6H4, etc.; R1 = C(O)2Bu] from Heck reaction of Bu acrylates and halobenzenes resp. The catalyst could be magnetically recovered after the reaction and could be reused for five times without appreciable decrease in activity. In addition to this study using 1-Iodo-2-methoxybenzene, there are many other studies that have used 1-Iodo-2-methoxybenzene(cas: 529-28-2COA of Formula: C7H7IO) was used in this study.

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.COA of Formula: C7H7IO

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

The author of 《Asymmetric 3D Hole-Transporting Materials Based on Triphenylethylene for Perovskite Solar Cells》 were Chen, Jian; Xia, Jianxing; Yu, Hui-Juan; Zhong, Jun-Xing; Wu, Xiao-Kun; Qin, Yuan-Shou; Jia, Chunyang; She, Zhigang; Kuang, Dai-Bin; Shao, Guang. And the article was published in Chemistry of Materials in 2019. HPLC of Formula: 101-70-2 The author mentioned the following in the article:

Two asym. three-dimensional (3D) hole-transporting materials (HTMs) containing a triphenylethylene core and peripheral diphenylamine/triphenylamine moieties are first synthesized and successfully used in perovskite solar cells (PSCs). Both HTMs are obtained from facile preparation procedures and simple purification techniques. The X-ray diffraction, aggregation-induced emission properties, absorption and emission spectra, electrochem. properties, thermal stability, d. functional theory calculations, hole mobility, scanning electronic microscopy, at. force microscopy, steady-state and time-resolved photoluminescence, water contact angles, and photovoltaic parameters of the PSCs are compared. The highest power conversion efficiency increases from 12.57% (CJ-02) to 18.56% (CJ-01), rivaling that obtained from the state-of-the-art 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) (18.69%). Further, the lab synthetic cost of CJ-01 is only about 15.5% of the price of com. spiro-OMeTAD, and the concentration of CJ-01 solution for device fabrication is less than half of the concentration of spiro-OMeTAD solution (30.0 vs 72.3 mg mL-1). These results demonstrate that the propeller-shaped compounds with a highly twisted conformation are readily available and promising alternative HTMs for PSCs. Moreover, an applicable strategy to design new HTMs with 3D structure for achieving highly efficient PSCs is proposed. In addition to this study using Bis(4-methoxyphenyl)amine, there are many other studies that have used Bis(4-methoxyphenyl)amine(cas: 101-70-2HPLC of Formula: 101-70-2) was used in this study.

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.HPLC of Formula: 101-70-2

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