Tag: 200-300

《Ligand Free Palladium-Catalyzed Synthesis of α-Trifluoromethylacrylic Acids and Related Acrylates by Three-Component Reaction》 was published in Advanced Synthesis & Catalysis in 2020. These research results belong to Xiao, Pan; Pannecoucke, Xavier; Bouillon, Jean-Philippe; Couve-Bonnaire, Samuel. Application of 529-28-2 The article mentions the following:

Aryl iodides and 2-(trifluoromethyl)acrylic acid reacted together in ligand-free Mizoroki-Heck reaction furnishing a quick and efficient access to highly valuable α-trifluoromethylacrylic acids I [R1 = H; Ar = Ph, 4-ClC6H4, 2-naphthyl, etc.; stereo = E and Z]. The useful transformation was independent with regard to the electronic nature of the aryl group substituent. A three-component one-pot version was also developed to give diverse substituted acrylates I [R1 = Et, n-heptyl, CH2CH(Et)CH2CH2CH2CH3, Bn, CH2CH2CH2Ph]. The versatility of α-trifluoromethylacrylic acids I was demonstrated by quick access to 3-CF3-coumarins as well as fluorinated analogs of therapeutic or cosmetic agents. Finally, a catalytic cycle based on the silver carboxylate salt, identified as a key intermediate in the reaction was proposed. The experimental process involved the reaction of 1-Iodo-2-methoxybenzene(cas: 529-28-2Application of 529-28-2)

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.Application of 529-28-2

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Ether – Wikipedia,
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The author of 《Impact of the donor substituent on the optoelectrochemical properties of 6H-indolo[2,3-b]quinoxaline amine derivatives》 were Singh, Pooja S.; Badani, Purav M.; Kamble, Rajesh M.. And the article was published in New Journal of Chemistry in 2019. COA of Formula: C14H15NO2 The author mentioned the following in the article:

A series of donor-acceptor-based 6H-indolo[2,3-b]quinoxaline amine derivatives were synthesized with different donor amines. The impact of the different donor moieties on 6H-indolo[2,3-b]quinoxaline was systematically examined by absorption-emission spectroscopy, cyclic voltammetry and theor. studies. The photophys. properties of these mols., such as intramol. charge transfer transitions (400 to 462 nm) and emission (491 to 600 nm), were influenced by the nature of the peripheral amines. Further, the solid-state emission demonstrated by some of the dyes aroused our interest in performing photophys. studies on the aggregation-induced emission phenomenon; these dyes showed nanoparticle formation in THF/H2O solvent mixtures Varying the strength of the peripheral amines in the derivatives also tuned the electrochem. data, with lower band gaps (1.56 to 2.21 eV) and comparable HOMO-LUMO energy levels with reported ambipolar materials. The donor-acceptor architectures and HOMO-LUMO energies were further rationalized using DFT/TDDFT calculations Thus, the opto-electrochem. studies and high thermal stability of these mols. indicate their potential application as solid-state emissive, ambipolar materials in optoelectronic devices. The experimental process involved the reaction of Bis(4-methoxyphenyl)amine(cas: 101-70-2COA of Formula: C14H15NO2)

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.COA of Formula: C14H15NO2

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Ether – Wikipedia,
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In 2019,New Journal of Chemistry included an article by Singh, Pooja S.; Chacko, Sajeev; Kamble, Rajesh M.. Electric Literature of C14H15NO2. The article was titled 《The design and synthesis of 2,3-diphenylquinoxaline amine derivatives as yellow-blue emissive materials for optoelectrochemical study》. The information in the text is summarized as follows:

In this study, a series of bipolar, donor-acceptor-donor (D-A-D)-based quinoxaline diarylamine/heterocyclic amine derivatives were synthesized in good yield by the Buchwald-Hartwig amination reaction and fully characterized by different spectroscopic methods. The optoelectronic properties of the dyes were scrutinised using electronic absorption and fluorescence spectroscopy, cyclic voltammetry, thermogravimetric anal., and differential scanning calorimetry and further by the DFT and TDDFT study. The photophys. properties of dyes are influenced by their peripheral amines and the nature of solvents used. The presence of intramol. charge transfer (ICT) transitions in the absorption spectra of amine derivatives is attributed to the existence of the D-A building units, which induces blue to yellow emission in both the solution and the neat solid film. Strikingly intense solid-state emission in some of the dyes has moved the area of study toward aggregation induced emission (AIE) phenomenon and showed the formation of nanoaggregates at above 50% water fraction (fw) of THF/H2O solvent mixtures, which was further confirmed by the FEG-SEM technique. The linkage of different amines with the quinoxaline core moiety tunes the electrochem. properties with lower band gaps and comparable HOMO-LUMO energy levels in reported ambipolar materials. Thus, the existence of a strong solid-state emission with AIE activity, ambipolar nature and good thermal properties of dyes attribute their use as solid-state emitters and ambipolar materials in optoelectronic devices. The experimental part of the paper was very detailed, including the reaction process of Bis(4-methoxyphenyl)amine(cas: 101-70-2Electric Literature of C14H15NO2)

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.Electric Literature of C14H15NO2

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

《Study and reduction of matrix effects in flowing liquid anode – Atmospheric pressure glow discharge – Optical emission spectrometry》 was written by Greda, Krzysztof; Szymczycha-Madeja, Anna; Pohl, Pawel. Reference of 1,4,7,10,13-Pentaoxacyclopentadecane And the article was included in Analytica Chimica Acta in 2020. The article conveys some information:

The effect of different interfering elements, i.e., Na, K, Mg, Ca, Al, Cu, Fe, Mn, Ni, and Zn, on the anal. performance of flowing liquid anode atm. pressure glow discharge optical emission spectrometry (FLA-APGD OES) was extensively studied. In the presence of interfering ions, the emission from analytes was suppressed by ∼10% in the case of Hg and Tl, ∼20% for Cd and Ag, and up to ∼80% for Zn and Pb. This study revealed that interfering elements did not affect the atomization/excitation conditions, and the reason for the observed decrease in anal. response was the impaired efficiency of analytes transport from liquid to plasma phase. To reduce matrix effects, the use of different masking agents capable of complexing the interfering ions, e.g., organic acids, crown ethers, chelating agents, and other compounds, was studied. FLA-APGD appeared to be quite susceptible to the presence of masking agents and only their small amounts could be added (limiting the effectiveness of this approach). Despite this, it was possible to significantly reduce the matrix effects originating from transition metals and alkali/alk. earth metals. Based on the results presented herein, different sample treatment procedures, aimed at the minimization of matrix effects in microplasma excitation sources, can be developed. As an example, a method for the determination of trace amounts of Zn and Pb in the Fe-rich matrix was shown. Using the selected masking agents, the recovery of Zn and Pb was improved 5.6-fold (from 10.4 to 57.8%) and 2.8-fold (from 13.6 to 38.0%), resp. Despite the presence of Fe-rich matrix, the detection limits of Zn and Pb were quite low (0.1 and 0.8μg L-1, resp.) and they were apparently lower than offered by ICP OES. In the experiment, the researchers used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Reference of 1,4,7,10,13-Pentaoxacyclopentadecane)

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. Reference of 1,4,7,10,13-Pentaoxacyclopentadecane

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

《Visible-Light-Induced, Catalyst-Free Radical Cross-Coupling Cyclization of N-Allylbromodifluoroacetamides with Disulfides or Diselenides》 was published in Journal of Organic Chemistry in 2020. These research results belong to Ye, Zhi-Peng; Xia, Peng-Ju; Liu, Fang; Hu, Yuan-Zhuo; Song, Dan; Xiao, Jun-An; Huang, Ping; Xiang, Hao-Yue; Chen, Xiao-Qing; Yang, Hua. SDS of cas: 882-33-7 The article mentions the following:

A visible-light-induced, catalyst-free radical cross-coupling cyclization of diselenide or disulfides with N-allylbromodifluoroacetamides was developed. This developed protocol exhibited good functional group tolerance and afforded a variety of 4-thio- and 4-seleno-substituted 3,3-difluoro-γ-lactams I [R = c-Bu, Ph, 2-BrC6H4CH2, etc.; R1 = H, Me, Cl; X = S, Se] in moderate to good yields. Based on control experiments, a plausible radical-radical cross-coupling pathway was proposed. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diphenyldisulfane(cas: 882-33-7SDS of cas: 882-33-7)

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. SDS of cas: 882-33-7

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

《Palladium-Catalyzed ortho-C-H Glycosylation/ipso-Alkenylation of Aryl Iodides》 was published in Journal of Organic Chemistry in 2020. These research results belong to Ding, Ya-Nan; Shi, Wei-Yu; Liu, Ce; Zheng, Nian; Li, Ming; An, Yang; Zhang, Zhe; Wang, Cui-Tian; Zhang, Bo-Sheng; Liang, Yong-Min. Product Details of 529-28-2 The article mentions the following:

This report describes first example of palladium-catalyzed ortho-C-H glycosylation/ipso-alkenylation of aryl iodides, and the easily accessible glycosyl chlorides are used as a glycosylation reagent. The reaction compatible with the functional groups of the substrates, and a series of C-aryl glycosides have been synthesized in good to excellent yield and with excellent diastereoselectivity. It is found that a cheap 5-norbornene-2-carbonitrile as a transient mediator can effectively promote this reaction. In addition, ipso-arylation and cyanation were also realized by the strategy. In the experiment, the researchers used 1-Iodo-2-methoxybenzene(cas: 529-28-2Product Details of 529-28-2)

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.Product Details of 529-28-2

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

《Organocatalyst in Direct C(sp2)-H Arylation of Unactivated Arenes: [1-(2-Hydroxyethyl)-piperazine]-Catalyzed Inter-/Intra-molecular C-H Bond Activation》 was published in Journal of Organic Chemistry in 2020. These research results belong to Yadav, Lalit; Tiwari, Mohit K.; Shyamlal, Bharti Rajesh Kumar; Chaudhary, Sandeep. Application of 529-28-2 The article mentions the following:

In the presence of 10 mol% 1-piperazineethanol, aryl iodides and bromides underwent arylation with benzene mediated by KOt-Bu to yield biaryls. N-Aryl 2-bromobenzamides underwent cyclization mediated by KOt-Bu in the presence of 40 mol% 1-piperazineethanol and 40 mol% 4-dimethylaminopyridine in mesitylene to yield phenanthridinones. Study of the reaction mechanism using kinetics and kinetic isotope effects and inhibition studies are consistent with the formation of aryl radical anions and a single electron transfer mechanism. After reading the article, we found that the author used 1-Iodo-2-methoxybenzene(cas: 529-28-2Application of 529-28-2)

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.Application of 529-28-2

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

The author of 《In-situ photochemical synthesis of Au nanoparticles in polymer matrix with one-component thioxanthone disulfide for detection of benzene, toluene and xylene vapours》 were Cinko, Tugce; Koyuncu, Umut; Omur, Birsel Can; Altindal, Ahmet; Arsu, Nergis. And the article was published in Progress in Organic Coatings in 2019. Recommanded Product: 882-33-7 The author mentioned the following in the article:

Thioxanthonation of di-Ph units of di-Ph disulfide was achieved successfully. The photoreduction and photostabilization ability of 2, 2′-disulfanediylbis (9H-thioxanthen-9-one) was used for in-situ preparation of Au nanoparticles either in solution or in poly(ethylene glycol) Me ether acrylate/poly(ethylene glycol) diacrylate polymer matrix. SPR(Surface Plasmon Resonance) absorption band of formed Au NPs were recorded at 550 nm by UV-vis spectroscopy. Indeed, formation of elliptical shaped nanoparticles (4-8μm) as well as spherical ones (11-14 nm) in nanocomposite films were obtained depending on UV irradiation time. DLS (Dynamic Light Scattering) measurements also changed from 440 nm to about 200 nm as a function of irradiation time. The potential of Au NPs/polymer nanocomposite film as a sensing element for benzene, toluene, xylene (BTX) sensing was studied at different temperatures An overall evaluation of the exptl. results showed that Au NPs/ polymer nanocomposite film has good potential as a sensing element for the detection of BTX vapors. In the experiment, the researchers used 1,2-Diphenyldisulfane(cas: 882-33-7Recommanded Product: 882-33-7)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Recommanded Product: 882-33-7Although ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly.

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

In 2019,Letters in Organic Chemistry included an article by Zhou, De-Jun; Zhai, Yang-Yang; Meng, Ling-Pu; Song, Wei-Wei; Liu, Xiao; Yin, Shu-Qiang. HPLC of Formula: 529-28-2. The article was titled 《Efficient Synthesis of Diacetoxyiodoarenes via Intramolecular Rearrangement》. The information in the text is summarized as follows:

This study introduces a concise and efficient method for preparing diacetoxyiodoarenes from the corresponding iodoarenes. In the presence of acetic anhydride, iodoarenes were oxidized to diacetoxyiodoarenes by sodium perborate in acetic acid under argon protection at 55°C in ideal yields. Through this method, 10 diacetoxyiodoarenes were obtained smoothly. The experimental part of the paper was very detailed, including the reaction process of 1-Iodo-2-methoxybenzene(cas: 529-28-2HPLC of Formula: 529-28-2)

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.HPLC of Formula: 529-28-2

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

In 2019,Journal of Organic Chemistry included an article by Sikari, Rina; Sinha, Suman; Das, Siuli; Saha, Anannya; Chakraborty, Gargi; Mondal, Rakesh; Paul, Nanda D.. COA of Formula: C7H7IO. The article was titled 《Achieving Nickel Catalyzed C-S Cross-Coupling under Mild Conditions Using Metal-Ligand Cooperativity》. The information in the text is summarized as follows:

A simple and efficient approach of C-S cross-coupling of a wide variety of (hetero)aryl thiols and (hetero)aryl halides under mild conditions, mostly at room temperature, catalyzed by well-defined singlet diradical Ni(II) catalysts bearing redox noninnocent ligands is reported. Taking advantage of ligand centered redox events, the high-energetic Ni(0)/Ni(II) or Ni(I)/Ni(III) redox steps were avoided in the catalytic cycle. The cooperative participation of both nickel and the coordinated ligands during oxidative addition/reductive elimination steps allowed us to perform the catalytic reactions under mild conditions. The results came from multiple reactions, including the reaction of 1-Iodo-2-methoxybenzene(cas: 529-28-2COA of Formula: 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.COA of Formula: C7H7IO

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