Tag: 100-200

In 2019,Journal of Molecular Structure included an article by Sanad, Sherif M. H.; Hanna, Demiana H.; Mekky, Ahmed E. M.. Recommanded Product: 4637-24-5. The article was titled 《Regioselective synthesis of novel antibacterial pyrazole-benzofuran hybrids: 2D NMR spectroscopy studies and molecular docking》. The information in the text is summarized as follows:

The acetyl derivative bearing benzofuran moiety, its enaminone and different hydrazines are used as synthons for the regioselective synthesis of substituted pyrazoles. Their structures were elucidated by 2D 1H-1H COSY, 1H-1H NOESY and 1H-13C HMBC NMR, spectrometry. Also, a series of novel pyrazole-benzofuran hybrids have been synthesized by the regioselective cycloaddition of enaminone to hydrazonyl chlorides. The series was elucidated by IR, 1H-NMR, 13C-NMR, 2D1H-1H COSY, 1H-1H NOESY and 1H-13C HMBC NMR spectrometry as well as elemental analyses. The series was subjected for testing their antimicrobial activities. Pyrazole derivative I showed the highest inhibitory activity against all different bacterial strains with min. inhibitory concentration values of 7.81, 15.6, 15.6 and 3.91 μg/mL against Staphylococcus aureus, Streptococcus mutans, Escherichia coli and Klebsiella pneumonia, resp., as compared to standard drugs for gram-pos. and neg. bacterial strains. The structure-activity relationship studies and mol. docking were performed to explain the inhibitory activities. In the experimental materials used by the author, we found N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5Recommanded Product: 4637-24-5)

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.Recommanded Product: 4637-24-5

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

Application of 197163-57-8On May 13, 2021 ,《Discovery of the S1P2 Antagonist GLPG2938 (1-[2-Ethoxy-6-(trifluoromethyl)-4-pyridyl]-3-[[5-methyl-6-[1-methyl-3-(trifluoromethyl)pyrazol-4-yl]pyridazin-3-yl]methyl]urea), a Preclinical Candidate for the Treatment of Idiopathic Pulmonary Fibrosis》 appeared in Journal of Medicinal Chemistry. The author of the article were Mammoliti, Oscar; Palisse, Adeline; Joannesse, Caroline; El Bkassiny, Sandy; Allart, Brigitte; Jaunet, Alex; Menet, Christel; Coornaert, Beatrice; Sonck, Kathleen; Duys, Inge; Clement-Lacroix, Philippe; Oste, Line; Borgonovi, Monica; Wakselman, Emanuelle; Christophe, Thierry; Houvenaghel, Nicolas; Jans, Mia; Heckmann, Bertrand; Saniere, Laurent; Brys, Reginald. The article conveys some information:

Mounting evidence from the literature suggests that blocking S1P2 receptor (S1PR2) signaling could be effective for the treatment of idiopathic pulmonary fibrosis (IPF). However, only a few antagonists have been so far disclosed. A chem. enablement strategy led to the discovery of a pyridine series with good antagonist activity. A pyridazine series with improved lipophilic efficiency and with no CYP inhibition liability was identified by scaffold hopping. Further optimization led to the discovery of 40 (GLPG2938)(I), a compound with exquisite potency on a phenotypic IL8 release assay, good pharmacokinetics, and good activity in a bleomycin-induced model of pulmonary fibrosis. In the part of experimental materials, we found many familiar compounds, such as 2-Ethoxy-6-methylpyridin-4-amine(cas: 197163-57-8Application of 197163-57-8)

2-Ethoxy-6-methylpyridin-4-amine(cas: 197163-57-8) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.Application of 197163-57-8

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Ether – Wikipedia,
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《Syntheses related to etiojervane. III. The synthesis of 1,8-dimethyl – 7 – methoxy – 1,2,3,4,4a,9a – hexahydrofluoren – 2-one》 was published in Journal of Organic Chemistry in 1962. These research results belong to Barnes, Roderick A.; Sedlak, Michael. Application of 33797-34-1 The article mentions the following:

cf. CA 57, 2156h. The cyclization of 1-(methoxybenzyl)cyclohexanol did not yield a hexahydrofluorene but rather a substance believed to be 2-methoxy-5,6,7,8,9,10-hexahydro-5,9-methano-benzocyclooctene (I). In an alternate approach the alkylation of Hagemann’s ester with benzyl chloride was found to take place at the 2-position. The alkylation products from benzyl chloride and substituted benzyl chlorides could be cyclized either before or after reduction of the double bond to fluorene derivatives The carboxyl group of 7-methoxy-1,8-dimethyl-1,2,3,4,4a,9a-hexahydrofluorene-2-carboxylic acid was degraded to yield II, which should be readily convertible to a degradation product of jervine. In the experiment, the researchers used many compounds, for example, (3-Methoxy-2-methylphenyl)methanol(cas: 33797-34-1Application of 33797-34-1)

(3-Methoxy-2-methylphenyl)methanol(cas: 33797-34-1) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. Application of 33797-34-1 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

《Self-Waveguide Single-Benzene Organic Crystal with Ultralow-Temperature Elasticity as a Potential Flexible Material》 was written by Liu, Bin; Lu, Zhuoqun; Tang, Baolei; Liu, Hao; Liu, Huapeng; Zhang, Zuolun; Ye, Kaiqi; Zhang, Hongyu. Reference of N,N-Dimethylformamide Dimethyl AcetalThis research focused onwaveguide benzene crystal ultralow temperature elasticity potential flexible material; elasticity; flexible crystals; optical waveguides; organic crystals; ultralow temperature. The article conveys some information:

A highly emissive aromatic crystal combining ultralow-temperature elasticity and self-waveguide properties (when a crystal is excited, it emits light from itself, which travels through the crystal to the other end) based on a simple single-benzene emitter, is reported. This crystal displayed excellent elastic bending ability in liquid N (LN). Preliminary experiments on optical waveguiding in the bent crystal demonstrated that the light generated by the crystal itself could be confined and propagated within the crystal body between 170 and -196°. These results not only suggest a guideline for designing functional organic crystals with ultralow-temperature elasticity but also expand the application region of flexible materials to extreme environments, such as space technol. In the experiment, the researchers used many compounds, for example, N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5Reference of N,N-Dimethylformamide Dimethyl Acetal)

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Reference of N,N-Dimethylformamide Dimethyl Acetal

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

Product Details of 2398-37-0In 2020 ,《Engineering the charge-transfer state to facilitate spin-orbit charge transfer intersystem crossing in spirobis[anthracene]diones》 was published in Angewandte Chemie, International Edition. The article was written by Lv, Meng; Yu, Yang; Sandoval-Salinas, Maria E.; Xu, Jianhua; Lei, Zuhai; Casanova, David; Yang, Youjun; Chen, Jinquan. The article contains the following contents:

Spiro conjugation has been proposed to dictate the efficiency of charge transfer, which could directly affect the spin-orbit charge transfer intersystem crossing (SOCT-ISC) process. However, this process has yet to be exemplified. Herein, we prepared three spirobis[anthracene]diones, in which two benzophenone moieties are locked in close proximity and differentially functionalized to fine-tune the charge transfer state. Its feasibility for SOCT-ISC was theor. predicted, then exptl. evaluated. Through fine-tuning the spiro conjugation coupling and varying the solvent dielec. constants, ISC rate constants were engineered to vary in a dynamic range of three orders of magnitude, from 7.8×108 s-1 to 1.0×1011 s-1, which is the highest ISC rate reported for SOCT-ISC system to our knowledge. Our findings substantiate the key factors for effective SOCT-ISC and offer a new avenue for the rational design of heavy atom free triplet sensitizers. In the experimental materials used by the author, we found 1-Bromo-3-methoxybenzene(cas: 2398-37-0Product Details of 2398-37-0)

1-Bromo-3-methoxybenzene(cas: 2398-37-0) can be used in chemical reaction as intermediates to obtain target materials such as dyes, pharmaceuticals, perfumes, photoinitiators and agrochemicals.Product Details of 2398-37-0

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

COA of Formula: C9H10O2In 2021 ,《Bio-derived nanosilica-anchored Cu(II)-organoselenium complex as an efficient retrievable catalyst for alcohol oxidation》 was published in Applied Organometallic Chemistry. The article was written by Gogoi, Rajjyoti; Borah, Geetika. The article contains the following contents:

A new copper(II) complex supported onto rice-husk-derived nanosilica was prepared from 2,6-bis((phenylselanyl)methyl)pyridine, salicylaldehyde and copper acetate monohydrate, Cu(OAc)2·H2O. The as-synthesized complex Cu(II)SeNSe@imine-nanoSiO2 (Complex I) was extensively characterized with FT-IR, powder XRD, SEM-EDX, solid-state UV-Vis, ESR, XPS, TGA and BET surface area anal. The catalytic activity of the complex was explored for alc. oxidation reactions using H2O2 as oxidant and acetonitrile as solvent. For comparison, we have also prepared an analogous homogeneous catalyst (Complex II) and characterized it with FT-IR, UV-Vis, LC-MS and ESR analyses. Its catalytic activity was also screened to the same reaction. The immobilized catalyst showed better efficiency with 75%-95% isolated yield compared with the homogeneous one for alc. oxidation with at least five times recyclability without profound loss in activity. In addition to this study using 2-(Benzyloxy)acetaldehyde, there are many other studies that have used 2-(Benzyloxy)acetaldehyde(cas: 60656-87-3COA of Formula: C9H10O2) was used in this study.

2-(Benzyloxy)acetaldehyde(cas: 60656-87-3) is a non-natural aldehyde. It undergoes enantioselective Mukaiyama aldol reaction with silylketene acetal nucleophiles in the presence of C2-symmetric bis(oxazolinyl)pyridine Cu(II) complex (catalyst).COA of Formula: C9H10O2

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

In 2019,European Journal of Medicinal Chemistry included an article by Sang, Zhipei; Wang, Keren; Zhang, Pengfei; Shi, Jian; Liu, Wenmin; Tan, Zhenghuai. COA of Formula: C8H8O2. The article was titled 《Design, synthesis, in-silico and biological evaluation of novel chalcone derivatives as multi-function agents for the treatment of Alzheimer’s disease》. The information in the text is summarized as follows:

A series of novel chalcone derivatives I [n = 3,4,5,6; R1 = 3,4-dihydro-1H-isoquinolin-2-yl, (4-benzyl-1-piperidyl)] and II [n = 3,4,6; R2 = 4-fluoro, 2-methoxy, 4-dimethylamino] were synthesized and evaluated as multifunctional agents for the treatment of AD. Among of these synthesized compounds, compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] was a selective BuChE inhibitor (IC50 = 2.6 μM) and selective MAO-B inhibitor (IC50 = 5.3 μM), which were supported by docking study. Compound compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] also showed good antioxidant activity and was a selective metal chelator, as well as a neuroprotectant. Moreover, compound compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] could significantly inhibit self-induced and Cu2+-induced Aβ1-42 aggregation with 70.2% and 80.7% inhibition rate, resp. and could disaggregate Cu2+-induced Aβ1-42 aggregation (73.5%), the further TEM images observed provided rational explanation. Besides, compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] displayed good PAMPA-BBB permeability and conformed to the Lipinski’s rule of five. Further, compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] presented precognitive effect on scopolamine-induced memory impairment in-vivo assay. Therefore, compound I [n = 4, R1 = 3,4-dihydro-1H-isoquinolin-2-yl] might be a promising multifunctional hit compound for the treatment of AD and the further structure optimization are in progress. In addition to this study using 2-Methoxybenzaldehyde, there are many other studies that have used 2-Methoxybenzaldehyde(cas: 135-02-4COA of Formula: C8H8O2) was used in this study.

2-Methoxybenzaldehyde(cas: 135-02-4) is used as a flavor agent in foods including nonalcoholic/alcoholic beverages, baked goods, chewing gum, confections, frozen dairy, fruit ices, hard/soft candy, instant coffee, tea, Jams, jellies, and milk products. It also has been used to obtain good enantioselectivities using Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding in asymmetric Henry reaction.COA of Formula: C8H8O2

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

Morin, Jean-Francois; Sasaki, Takashi; Shirai, Yasuhiro; Guerrero, Jason M.; Tour, James M. published their research in Journal of Organic Chemistry on December 7 ,2007. The article was titled 《Synthetic routes toward carborane-wheeled nanocars》.Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzene The article contains the following contents:

A new set of p-carborane-wheeled aryleneethynylene nanovehicles, nanocars I and II, nanocaterpillar III and rotating trimer IV (R = 1-p-C2B10H11, X = CC, Q = [2,5-(n-PrO)2-1,4-C6H2CC]2) bearing carboranylethynyl units attached to a semirigid chassis were designed and prepared These mols. are expected to move in predetermined patterns on atomically smooth surfaces, depending on their specific configuration. In addition to this study using 1,4-Diethynyl-2,5-dimethoxybenzene, there are many other studies that have used 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzene) was used in this study.

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) 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. Quality Control of 1,4-Diethynyl-2,5-dimethoxybenzene 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.

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

《Synthesis and optical properties of triphenylene-based donor-donor and donor-acceptor conjugated polymers: a comparative study》 was written by Li, Yong; Nguyen, Dung D.; Shetye, Kuldeep; Peng, Zhonghua. Recommanded Product: 3-Methoxyphenylboronic acidThis research focused ontriphenylene based donor acceptor conjugated polymer synthesis optical property. The article conveys some information:

Two new conjugated polymers (P1 and P2), containing a bithiophene donor unit coupled with either a triphenylene donor unit or an imide-functionalized triphenylene acceptor unit in the backbone, have been synthesized, structurally characterized, and comparatively studied by using 1H NMR, FTIR, gel permeation chromatog., differential scanning calorimetry, cyclic voltammetry, UV-visible absorption, and fluorescence spectroscopy. Both polymers are amorphous in nature and thermally stable up to 450°. The inclusion of the imide functionalization in the triphenylene unit significantly lowered the LUMO energy level and the bandgap of the donor-acceptor polymer P2 over the donor-donor polymer P1. P1 and P2 show very different optical properties in hexane and other solvents. P1 shows a broad emission in hexane but vibronically structured emissions in other solvents; in contrast, P2 exhibits a vibronically resolved emission in hexane, while exhibiting red shifted, broad, and featureless emissions in other solvents. P1 takes a random coil conformation in good solvents like p-xylene, benzene, toluene, anisole, chloroform, THF, and o-dichlorobenzene, whereas in hexane, it may adopt a helical folding conformation. P2, on the other hand, adopts a random coil conformation in hexane but possibly the helical folding conformation in other good solvents. The opposite conformations of the two polymers may be responsible for their opposite solvent-dependent fluorescence properties. In the experiment, the researchers used 3-Methoxyphenylboronic acid(cas: 10365-98-7Recommanded Product: 3-Methoxyphenylboronic acid)

3-Methoxyphenylboronic acid(cas: 10365-98-7) belongs to boronic acids. Boronic acids are mild Lewis acids which are generally stable and easy to handle, making them important to organic synthesis.Recommanded Product: 3-Methoxyphenylboronic acid

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

In 2022,He, Shun-Dong; Guo, Xiao-Qiang; Li, Jun; Zhang, Yu-Cheng; Chen, Lian-Mei; Kang, Tai-Ran published an article in European Journal of Organic Chemistry. The title of the article was 《Base-Promoted Reaction of Phenols with Spirocylic λ3-Iodanes: Access to Both 2-Iodovinyl Aryl Ethers and Diaryl Ethers》.HPLC of Formula: 150-19-6 The author mentioned the following in the article:

Herein, an efficient method for vinyl or aryl C(sp2)-O bond forming to construct both the (Z)-2-iodovinyl aryl ethers and diaryl ethers under metal-, photocatalyst- and light-free condition in one-step, has been developed. To generate the two desired products, authors proposed a SNAr2 reaction of phenol with vinyl aryl iodonium salts intermediates that subsequently lead to the phenyl-I bond cleavage and phenyl-O bond formation. Authors firstly found that the vinyl aryl iodonium salts was formed in situ from the spiro-cis-β-phenol-VBXs, which was generated between electrophilic spiro-EBXs and nucleophilic arylols. Trisubstituted alkenes and functionalized diaryl ethers can be afforded from the two desired products. In the part of experimental materials, we found many familiar compounds, such as m-Methoxyphenol(cas: 150-19-6HPLC of Formula: 150-19-6)

m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneHPLC of Formula: 150-19-6

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