Month: November 2022

Deng, Jiazhu; Xue, Teng; Wu, Haihong; Wu, Peng published an article in 2022, the title of the article was Preparation of a cost-effective Ni-Ag bimetallic catalyst for hydrodehalogenation of aryl halides under mild conditions.Category: ethers-buliding-blocks And the article contains the following content:

Cost-effective Ni-Ag bimetallic nanoparticles were prepared using an aqueous-phase surfactant-aided co-reduction process and used as catalysts for the hydrodehalogenation of aryl halides CAr-X (X = F, Cl, Br). CAr-X could be easily converted at 60°C by using water as a solvent, with a CAr-H yield higher than 90%. This catalyst was widely applicable in the hydrodehalogenation of halogenated aromatics with various functional groups (more than 40 examples), including the high concentration solution of aryl fluorides, polyhalogenated phenol, environmental pollutants like 2,4-dichlorophenoxyacetic acid (2,4-D) and triclosan. Furthermore, it could be easily recycled and reused, providing a green and cost-effective method for the degradation of polyhalogenated aromatic pollutants and synthesis of important structural units through hydrodehalogenation reactions. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Category: ethers-buliding-blocks

The Article related to nickel silver bimetallic catalyst preparation hydrodehalogenation aryl halide green, General Organic Chemistry: Synthetic Methods and other aspects.Category: ethers-buliding-blocks

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

Hosseini, Seyed Hassan; Tavakolizadeh, Maryam; Zohreh, Nasrin; Soleyman, Rouhollah published an article in 2018, the title of the article was Green route for selective gram-scale oxidation of sulfides using tungstate/triazine-based ionic liquid immobilized on magnetic nanoparticles as a phase-transfer heterogeneous catalyst.Formula: C13H11BrS And the article contains the following content:

Tungstate ions were successfully loaded onto triazine-based ionic liquid-functionalized magnetic nanoparticles through an anion exchange process. The use of triazine core for creating ionic liquid led to the immobilization of high amounts of WO42-. The resulting catalyst showed high activity and selectivity in the oxidation of sulfides to sulfoxides with H2O2 as a green oxidant at room temperature In addition, due to the presence of ammonium groups in the catalyst structure, water dispersibility of the catalyst was increased. More important, the catalyst was magnetically recovered and reused for up to six runs without any marked decrease of activity and selectivity. Finally, easy gram-scale oxidation of methylphenyl sulfide as well as fast separation of catalyst and product makes the protocol economical and industrially applicable. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Formula: C13H11BrS

The Article related to green sulfide oxidation tungstate triazine immobilized magnetic nanoparticle catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Formula: C13H11BrS

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

On April 30, 2010, Khodaei, Mohammad Mehdi; Bahrami, Kiumars; Arabi, Mehdi Sheikh published an article.HPLC of Formula: 53136-21-3 The title of the article was Oxidation of sulfides to sulfoxides with H2O2/HNO3 reagent system. And the article contained the following:

Selective oxidation of sulfides to sulfoxides is achieved by H2O2 using HNO3 as the promotor. Aromatic and aliphatic sulfides are oxidized to sulfoxides in excellent yields and short reaction times. Different functional groups including C-C double bond, ester, ketone, acetal, alc., and oxime groups are tolerated under this reaction condition. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).HPLC of Formula: 53136-21-3

The Article related to sulfide oxidation hydrogen peroxide nitric acid oxidizing agent, sulfoxide preparation, General Organic Chemistry: Synthetic Methods and other aspects.HPLC of Formula: 53136-21-3

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

On November 30, 2013, Magalhaes, Ana L.; Vaz, Raquel V.; Goncalves, Ricardo M. G.; Da Silva, Francisco A.; Silva, Carlos M. published an article.Application In Synthesis of 1-Fluoro-2-methoxybenzene The title of the article was Accurate hydrodynamic models for the prediction of tracer diffusivities in supercritical carbon dioxide. And the article contained the following:

The tracer diffusion coefficients, D12, are fundamental properties for the design and simulation of rate-controlled processes. Nowadays, under the scope of the biorefinery concept and strict environmental legislation, the D12 values are increasingly necessary for extractions, reactions, and chromatog. separations carried out at supercritical conditions, particularly using carbon dioxide. Hence, the main objective of this work is the development of accurate and simple models for the pure prediction of D12 values in supercritical CO2. Two modified Stokes-Einstein equations (mSE1 and mSE2) are proposed and validated using a large database comprehending extremely distinct mols. in terms of size, mol. weight, polarity and sphericity. The global deviations achieved by the mSE1 (Eqs. (2) and (13)) and mSE2 (Eqs. (5), (13), (3), (4)) models are only 6.38% and 6.75%, resp., in contrast to the significant errors provided by known predictive correlations available in the literature: Wilke-Chang, 12.17%; Tyn-Calus, 17.01%; Scheibel, 19.04%; Lusis-Ratcliff, 27.32%; Reddy-Doraiswamy, 79.34%; Lai-Tan, 25.82%. Also, the min. and maximum deviations achieved by the new models are much smaller than those of the reference equations adopted for comparison. In conclusion, the mSE1 and mSE2 models can be recommended for the prediction of tracer diffusivities in supercritical CO2. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Application In Synthesis of 1-Fluoro-2-methoxybenzene

The Article related to accurate hydrodynamic model prediction tracer diffusivities supercritical carbon dioxide, Unit Operations and Processes: Mass Transfer and other aspects.Application In Synthesis of 1-Fluoro-2-methoxybenzene

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

On April 13, 2020, Yurino, Taiga; Hachiya, Asuka; Suzuki, Keisuke; Ohkuma, Takeshi published an article.Category: ethers-buliding-blocks The title of the article was Selective Conversion of Benzylic Phosphates into Diarylmethanes Through Al(OTf)3-Catalyzed Friedel-Crafts-Type Benzylation. And the article contained the following:

Al(OTf)3 was identified as a high-performance catalyst for Friedel-Crafts-type benzylation using benzylic phosphates as electrophiles. The reaction proceeded even with 0.2 mol-% of the catalyst. A series of diarylmethanes (21 examples) was obtained in moderate to high yield. The catalyst showed unique chemoselectivity, preferentially converting the benzylic phosphate motif, even with a benzylic acetate group existed in the same mol. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Category: ethers-buliding-blocks

The Article related to diarylmethane preparation benzylic phosphate aluminum catalyst friedel crafts benzylation, General Organic Chemistry: Synthetic Methods and other aspects.Category: ethers-buliding-blocks

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

On October 31, 2014, Ghorbani-Vaghei, Ramin; Shiri, Lotfi; Ghorbani-Choghamarani, Arash published an article.Synthetic Route of 53136-21-3 The title of the article was A novel method for the reduction of sulfoxides with the N,N,N’,N’-tetrabromobenzene-1,3-disulfonamide (TBBDA)/PPh3 system. And the article contained the following:

A new method is described for the reduction of sulfoxides to sulfides using N,N,N’,N’-tetrabromobenzene-1,3-disulfonamide [TBBDA] in combination with triphenylphosphine. Good to excellent yields, short reaction times, high efficiency and facile isolation of the desired products are the advantages of this method. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Synthetic Route of 53136-21-3

The Article related to tetrabromobenzene disulfonamide triphenylphosphine sulfoxide reduction, sulfide preparation, General Organic Chemistry: Synthetic Methods and other aspects.Synthetic Route of 53136-21-3

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

On April 30, 2009, Movassagh, Barahman; Soleiman-Beigi, Mohammad published an article.Reference of Benzyl(4-bromophenyl)sulfane The title of the article was Synthesis of sulfides under solvent- and catalyst-free conditions. And the article contained the following:

A simple, highly efficient, and green protocol was developed for preparation of sulfides from alkyl or aryl thiols and benzyl-, allyl-, t-Bu, and adamantyl halides under solvent- and catalyst-free conditions. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Reference of Benzyl(4-bromophenyl)sulfane

The Article related to thiol thioetherification alkyl halide solvent catalyst free, sulfide preparation green chem, General Organic Chemistry: Synthetic Methods and other aspects.Reference of Benzyl(4-bromophenyl)sulfane

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

On May 1, 2020, Van Velthoven, Niels; Henrion, Mickael; Dallenes, Jesse; Krajnc, Andraz; Bugaev, Aram L.; Liu, Pei; Bals, Sara; Soldatov, Alexander V.; Mali, Gregor; De Vos, Dirk E. published an article.Safety of 1,2-Dimethoxybenzene The title of the article was S,O-Functionalized Metal-Organic Frameworks as Heterogeneous Single-Site Catalysts for the Oxidative Alkenylation of Arenes via C-H activation. And the article contained the following:

Heterogeneous single-site catalysts can combine the precise active site design of organometallic complexes with the efficient recovery of solid catalysts. Based on recent progress on homogeneous thioether ligands for Pd-catalyzed C-H activation reactions, a scalable metal-organic framework-based heterogeneous single-site catalyst containing S,O-moieties that increase the catalytic activity of Pd(II) for the oxidative alkenylation of arenes has been developed. The structure of the Pd@MOF-808-L1 catalyst was characterized in detail via solid-state NMR spectroscopy, N2 physisorption, and high-angle annular dark field scanning transmission electron microscopy, and the structure of the isolated palladium active sites could be identified by X-ray absorption spectroscopy. A turnover frequency (TOF) of 8.4 h-1 was reached after 1 h of reaction time, which was 3 times higher than the TOF of standard Pd(OAc)2, ranking Pd@MOF-808-L1 among the most active heterogeneous catalysts ever reported for the nondirected oxidative alkenylation of arenes. Finally, the single-site catalyst promotes the oxidative alkenylation of a broad range of electron-rich arenes, and the applicability of this heterogeneous system was demonstrated by the gram-scale synthesis of industrially relevant products has been reported. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Safety of 1,2-Dimethoxybenzene

The Article related to arene oxidative alkenylation metal organic framework catalyst regioselective stereoselective, General Organic Chemistry: Synthetic Methods and other aspects.Safety of 1,2-Dimethoxybenzene

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

On August 31, 2010, Shirini, F.; Imanzadeh, G. H.; Mousazadeh, A. R.; Aliakbar, A. R. published an article.Synthetic Route of 53136-21-3 The title of the article was (PhCH2PPh3)+Br3-, a versatile reagent for the chemoselective oxidation of sulfides to sulfoxides. And the article contained the following:

Benzyltriphenylphosphonium tribromide as a stable solid reagent, was easily prepared by the reaction of benzyltriphenylphosphonium bromide with Br2. This reagent was used as an efficient reagent for the chemoselective oxidation of dialkyl and aryl-alkyl sulfides to their corresponding sulfoxides in the presence of diaryl sulfides and primary alcs. All reactions were performed in a refluxing mixture of methanol and water in very short reaction times. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Synthetic Route of 53136-21-3

The Article related to phosphonium bromide reagent preparation sulfide chemoselective oxidation, sulfoxide preparation, General Organic Chemistry: Synthetic Methods and other aspects.Synthetic Route of 53136-21-3

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

On July 22, 1994, Garret, Claude; Montier, Francois published a patent.HPLC of Formula: 81616-80-0 The title of the patent was Pharmaceutical compositions containing synergistic Nk1 and NK2 receptor antagonists. And the patent contained the following:

Pharmaceutical compositions containing synergistic Nk1 and NK2 receptor antagonists are used for the treatment of diseases caused by substance P and/or neurokinine A. I.v. injection of [imino-1-(methoxy-2-phenyl)-2-ethyl]-2-diphenyl-7,7-perhydroisoindolone-4-(3aR,7aR) (preparation given) and N-methyl[(phenyl-4-acetamido-4-piperidinyl)-4-(dichloro-3,4-phenyl)-2-butyl]benzamide (I) at 0.5mg/kg did not inhibit the capsaicin-induced bladder contractions in rats, while the combination of both decreased the contractions by 74%. A tablet contained [diphenyl-7,7-(methoxy-2-phenyl)-2-propionyl-(S)]-2-perhydroisoindolol-4-(3aS,4S, 7aS) 12.5, I 12.5, starch 83, silica 30, and Mg stearate 3 mg. The experimental process involved the reaction of (S)-2-(2-Methoxyphenyl)propanoic acid(cas: 81616-80-0).HPLC of Formula: 81616-80-0

The Article related to pharmaceutical synergism nk1 nk2 receptor antagonist, tablet synergism nk1 nk2 receptor antagonist, Pharmaceuticals: Formulation and Compounding and other aspects.HPLC of Formula: 81616-80-0

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