Month: October 2022

Wang, Jingyang; Wang, Yu; Ding, Guangni; Wu, Xiaoyu; Yang, Liqun; Fan, Sijie; Zhang, Zhaoguo; Xie, Xiaomin published an article in 2021. The article was titled 《Nickel-catalyzed deallylation of aryl allyl ethers with hydrosilanes》, and you may find the article in Tetrahedron Letters.Application In Synthesis of m-Methoxyphenol The information in the text is summarized as follows:

An efficient and mild catalytic deallylation method of aryl allyl ethers was developed, with com. available Ni(COD)2 as catalyst precursor, simple substituted bipyridine as ligand and air-stable hydrosilanes. The process was compatible with a variety of functional groups and the desired phenol products can be obtained with excellent yields and selectivity. Besides, by detection or isolation of key intermediates, mechanism studies confirm that the deallylation undergoes η3-allylnickel intermediate pathway. In the experiment, the researchers used m-Methoxyphenol(cas: 150-19-6Application In Synthesis of m-Methoxyphenol)

m-Methoxyphenol(cas: 150-19-6) may be used as an analytical standard for the determination of the analyte in wine, coffee beans, wood samples, and mainstream smoke by gas chromatography (GC) based techniques.Application In Synthesis of m-Methoxyphenol

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

Ferreira, Alana R.; Alves, Danielle da N.; de Castro, Ricardo D.; Perez-Castillo, Yunierkis; de Sousa, Damiao P. published an article in 2022. The article was titled 《Synthesis of Coumarin and Homoisoflavonoid Derivatives and Analogs: The Search for New Antifungal Agents》, and you may find the article in Pharmaceuticals.Reference of 2-Methoxybenzaldehyde The information in the text is summarized as follows:

A set of twenty-four synthetic derivatives, coumarin I [R = 4-OPr, 4-OiPr, 7-O-pentyl, etc.], II [R = Ph, 4-MeOC6H4, 4-MeC6H4, etc.; X = N, O] via alkylation and acylation reactions of com. coumarins, 4-hydroxycoumarin/7-hydroxycoumarin and homoisoflavonoid cores and its structural analogs III [R = H, 4-OMe, 3-OMe, etc.] via reactions between 4-chromanone and aldehydes catalyzed by pyrrolidine. The broth microdilution test was used to determine the Min. Inhibitory Concentration (MIC) of the compounds I, II and III and to verify the possible antifungal action mechanisms. The structures of the synthesized products I, II and III were characterized by FTIR spectroscopy: 1H-NMR, 13C-NMR, and HRMS. The coumarin derivative I [R = 7-O-pentyl, etc.] presented the best antifungal profile, suggesting that the pentyloxy substituent at the C-7 position of coumarin ring could potentiate the bioactivity. Compound I [R = 7-O-pentyl, etc.] was then evaluated against the biofilm of C. tropicalis ATCC 13803, which showed a statistically significant reduction in biofilm at concentrations of 0.268μmol/mL and 0.067μmol/mL, when compared to the growth control group. For a better understanding of their antifungal activity, compounds I [R = 7-O-pentyl, etc.] and III [R = H] were submitted to a study of the mode of action on the fungal cell wall and plasma membrane. It was observed that neither compound interacted directly with ergosterol present in the fungal plasma membrane or with the fungal cell wall which suggested that their bioactivity was due to interaction involving other pharmacol. targets. Compound I [R = 7-O-pentyl, etc.] was also subjected to a mol. modeling study, which showed that its antifungal action mechanism occurred mainly through interference in the redox balance of the fungal cell, and by compromising the plasma membrane; not by direct interaction, but by interference in ergosterol synthesis. Another important finding was the antifungal capacity of homoisoflavonoids III [R = 3-OMe, 2-OMe]. Derivative III [R = 3-OMe] presented slightly higher antifungal activity, possibly due to the presence of the methoxyl substituent in the meta position in ring B. In the experiment, the researchers used many compounds, for example, 2-Methoxybenzaldehyde(cas: 135-02-4Reference of 2-Methoxybenzaldehyde)

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.Reference of 2-Methoxybenzaldehyde

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

In 2022,Nguyen, Nguyen H.; Oh, Soo Min; Park, Cheol-Min; Shin, Seunghoon published an article in Chemical Science. The title of the article was 《Ortho-selective C-H arylation of phenols with N-carboxyindoles under Bronsted acid- or Cu(I)-catalysis》.Related Products of 150-19-6 The author mentioned the following in the article:

Control over chemo- and regioselectivity is a critical issue in the heterobiaryl synthesis via C-H oxidative coupling. To address this challenge, a strategy to invert the normal polarity of indoles in the heterobiaryl coupling was developed. With N-carboxyindoles as umpoled indoles, an exclusively ortho-selective coupling with phenols was realized for the synthesis of aryl indoles I [R1 = H, 4-Me, 7-F, etc.; R2 = t-Bu, Ph, 1-naphthyl, etc.; Ar’ = 2-OH-4-MeC6H3, 2-OH-5-MeC6H3, 2-OH-4-MeOC6H3, etc.], employing a Bronsted acid- or Cu(I)-catalyst (as low as 0.01 mol%). A range of phenols and N-carboxyindoles coupled with exceptional efficiency and selectivity at ambient temperature and the substrates bearing redox-active aryl halides (-Br and -I) smoothly coupled in an orthogonal manner. Notably, preliminary examples of atropselective heterobiaryl coupling were demonstrated, based on a chiral disulfonimide or a Cu(I)/chiral bisphosphine catalytic system. The reaction was proposed to occur through SN2′ substitution or a Cu(I)-Cu(III) cycle, with Bronsted acid or Cu(I) catalysts, resp.m-Methoxyphenol(cas: 150-19-6Related Products of 150-19-6) was used in this study.

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)-benzoxazoloneRelated Products of 150-19-6

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

In 2022,Sharapov, Ainur D.; Fatykhov, Ramil F.; Khalymbadzha, Igor A.; Sharutin, Vladimir V.; Santra, Sougata; Zyryanov, Grigory V.; Chupakhin, Oleg N.; Ranu, Brindaban C. published an article in Green Chemistry. The title of the article was 《Mechanochemical synthesis of coumarins via Pechmann condensation under solvent-free conditions: an easy access to coumarins and annulated pyrano[2,3-f] and [3,2-f]indoles》.Safety of m-Methoxyphenol The author mentioned the following in the article:

A green protocol has been developed for the synthesis of simple coumarins, e.g., I linear pyrano[2,3-f] and [3,2-f]indoles by the reaction of phenol derivatives ROH (R = 3,5-(OH)2C6H3, 4-Br-3-OHC6H3, 3-OMeC6H4) with β-ketoesters, e.g., cyclohexanecarboxylic acid, 2-oxo-, Et ester under ball milling at ambient temperature in the presence of methanesulfonic acid as a mild acid catalyst. The significant advantages of this procedure are high yields, scalability, no use of hazardous acids or solvents, shorter reaction time, ambient temperature, low cost, and straightforward purification without column chromatog. This procedure is associated with high EcoScale metrics and a low E-factor. In contrast to traditional Pechmann condensation procedures, the mechanochem. protocol leads to the synthesis of pyranoindoles with excellent regioselectivity and high yields.m-Methoxyphenol(cas: 150-19-6Safety of m-Methoxyphenol) was used in this study.

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)-benzoxazoloneSafety of m-Methoxyphenol

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

Synthetic Route of C5H13NO2In 2020 ,《New facile method for synthesis of 5-[(dimethylamino)methylene]pyrimidine-2,4,6-trione as potential template for barbiturate drugs》 appeared in Pharma Chemica. The author of the article were Sarhan, Alaadin E.. The article conveys some information:

New eco-friendly rapid synthesis of 5-[(dimethylamino)methylene]pyrimidine-2,4,6-trione was achieved by new method with efficient yield as potential template in synthesis of many biol. important organic compounds In the experiment, the researchers used many compounds, for example, N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5Synthetic Route of C5H13NO2)

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.Synthetic Route of C5H13NO2

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

HPLC of Formula: 4637-24-5In 2019 ,《Scalable Sonochemical Synthetic Strategy for Pyrazolo[1,5-a]pyridine Derivatives: First Catalyst-Free Concerted [3 + 2] Cycloaddition of Alkyne and Alkene Derivatives to 2-Imino-1H-pyridin-1-amines》 was published in ACS Omega. The article was written by Ibrahim, Hamada Mohamed; Behbehani, Haider; Mostafa, Noha S.. The article contains the following contents:

A highly efficient and convenient one-pot sonochem. synthetic strategy has been sophisticated for synthesizing a novel class of polysubstituted pyrazolo[1,5-a]pyridines via [3 + 2] cycloaddition of dialkyl acetylenedicarboxylates, Et propiolate, and alkenes to 2-imino-1H-pyridin-1-amines under catalyst-free conditions. A series of uniquely substituted pyrazolo[1,5-a]pyridines has been synthesized with a very good to excellent yield, and the mechanistic pathway that involves a [3 + 2] annulation process was also proposed. In this study, several spectroscopic tools of analyses were employed for structure elucidation, and the X-ray single-crystal technique was utilized to confirm the proposed mechanism and the regioselectivity.N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5HPLC of Formula: 4637-24-5) was used in this study.

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.HPLC of Formula: 4637-24-5

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

Quality Control of 1,4,7,10,13-PentaoxacyclopentadecaneIn 2019 ,《Effect of Copper Substrate Surface Orientation on the Reductive Functionalization of Graphene》 was published in Chemistry of Materials. The article was written by Zhang, Xu; Luo, Da; Zhang, Hanyang; Hwang, Dae Yeon; Park, Sung O.; Li, Bao-Wen; Biswal, Mandakini; Jiang, Yi; Huang, Yuan; Kwak, Sang Kyu; Bielawski, Christopher W.; Ruoff, Rodney S.. The article contains the following contents:

Although substrate composition can influence the chem. reactivity of graphene, substrate lattice orientation provides a valuable alternative. The effect of Cu surface orientation on the reactivity of graphene was explored through a reductive transformation. Among the substrates tested, only Cu(111) led to the efficient, fast and uniform functionalization of graphene, as demonstrated by Raman mapping, and this arose from compressive strain induced by Cu(111). Functionalization effectively relaxes the strain, which can be subsequently reintroduced after thermal treatment. Theor. calculations showed how compression facilitates the reduction and hybridization of carbon atoms, while coupling experiments revealed how kinetics may be used to control the reaction. The number of graphene layers and their stacking modes were also found to be important factors. In a broader context, a description of how graphene undergoes chem. modification when positioned on certain metal substrates is provided.1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Quality Control of 1,4,7,10,13-Pentaoxacyclopentadecane) 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. Quality Control of 1,4,7,10,13-Pentaoxacyclopentadecane

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

《A Thioxanthenothioxanthene-based Hole Transporter with 2D Molecular Stacking for Efficient and Thermostable Perovskite Solar Cells》 was written by Zheng, Aibin; Ren, Ming; Zhang, Yuyan; Cai, Yaohang; Zhang, Jing; Yuan, Yi; Lei, Ming; Wang, Peng. Application of 101-70-2This research focused onthioxanthenothioxanthene hole transporter perovskite solar cell. The article conveys some information:

Maintaining persistent thin-film morphol. under certain thermal stress is desirable for durable operation of multi-layer organic optoelectronic devices. a thioxanthenothioxanthene-centered hole-transporter (N3,N3,N9,N9-tetrakis(4-methoxyphenyl)thioxantheno[2,1,9,8-klmna]thioxanthene-3,9-diamine, TXTX-OMeDPA) characteristic of two-dimensional mol. stacking in a single crystal is reported. TXTX-OMeDPA can be solution-processed into smooth thin films with suitable energy level and good hole mobility, allowing for the fabrication of perovskite solar cells with an impressive power conversion efficiency of 22.2% when measured under illumination of AM 1.5G sunlight. The remarkable morphol. stability of TXTX-OMeDPA-based thin film ensures good stability for perovskite solar cells not only stored at 60° in the dark but also operated under equivalent full sunlight at 60°. The experimental process involved the reaction of Bis(4-methoxyphenyl)amine(cas: 101-70-2Application 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.Application of 101-70-2

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

《Gold/photoredox-cocatalyzed atom transfer thiosulfonylation of alkynes: stereoselective synthesis of vinylsulfones》 was written by Song, Tingting; Li, Haoyu; Wei, Fang; Tung, Chen-Ho; Xu, Zhenghu. Product Details of 882-33-7This research focused onvinylsulfone regioselective preparation stereoselective; benzenesulfonothioate alkyne thiosulfonylation gold photoredox cocatalyst. The article conveys some information:

A series of vinylsulfones I [R = Me, Ph, 4-MeC6H4, etc.; R1 = cyclopropyl, Ph, 3-thienyl, etc.; R2 = H, n-Bu] was synthesized via gold and photoredox-cocatalyzed thiosulfonylation of benzenesulfonothioates and alkynes. Key features of this method included very mild conditions, broad substrate scope, excellent regio- and stereoselectivties, radical approach and 100% atom economy. In addition to this study using 1,2-Diphenyldisulfane, there are many other studies that have used 1,2-Diphenyldisulfane(cas: 882-33-7Product Details of 882-33-7) was used in this study.

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Product Details of 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

《Kinetic resolution of mandelate esters via stereoselective acylation catalyzed by lipase PS-30》 was written by Chen, Peiran; Yang, Wenhong. Application In Synthesis of 2-Hydroxy-2-(4-propoxyphenyl)acetic acid And the article was included in Tetrahedron Letters on April 2 ,2014. The article conveys some information:

By using lipase PS-30 as catalyst, the kinetic resolution of a series of racemic mandelate esters has been achieved via stereoselective acylation. The value of kinetic enantiomeric ratio (E) reached up to 197.5. Substituent effect is briefly discussed. In the experimental materials used by the author, we found 2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9Application In Synthesis of 2-Hydroxy-2-(4-propoxyphenyl)acetic acid)

2-Hydroxy-2-(4-propoxyphenyl)acetic acid(cas: 79694-16-9) belongs to ethers.The C-O bonds that comprise simple ethers are strong. Application In Synthesis of 2-Hydroxy-2-(4-propoxyphenyl)acetic acid 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