Category: ethers-buliding-blocks

On July 31, 2014, Vaz, Raquel V.; Magalhaes, Ana L.; Silva, Carlos M. published an article.Product Details of 321-28-8 The title of the article was Prediction of binary diffusion coefficients in supercritical CO2 with improved behavior near the critical point. And the article contained the following:

In this work, a predictive model for binary diffusivities at infinite dilution (D12) in SC-CO2 is proposed. It combines two terms – background and singular – with the objective to represent D12 accurately not only far but also near the critical point, where critical enhancement is always observed The model provides an average error of 6.20% for a large database including 149 systems and 4469 data points over wide ranges of temperature and pressure. The models selected for comparison (Wilke-Chang, Scheibel, Lusis-Ratcliff, Lai-Tan, Tyn-Calus and Reddy-Doraiswamy) achieve scattered and biased results, with average errors from 11.62-75.17%. In the whole, the new model exhibits an excellent performance for any kind of mols. in terms of size, mol. weight, polarity and sphericity, in all critical region. In order to help interested readers, a spreadsheet for the calculation of D12 is given in supplementary data. The input data is: temperature, pressure, CO2 viscosity, and solute properties (acentric factor, critical constants, molar volume at normal b.p., and mol. weight – given in this paper for the systems studied). The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Product Details of 321-28-8

The Article related to binary diffusion supercritical carbon dioxide critical point prediction, Unit Operations and Processes: Mass Transfer and other aspects.Product Details of 321-28-8

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

On September 30, 2017, Azizi, Mojtaba; Maleki, Ali; Hakimpoor, Farahman published an article.Product Details of 53136-21-3 The title of the article was Solvent, metal and halogen-free synthesis of sulfoxides by using a recoverable heterogeneous urea-hydrogen peroxide silica-based oxidative catalytic system. And the article contained the following:

An efficient and green protocol was used for the selective oxidation of sulfides to sulfoxides by using silica sulfuric acid (SSA) as a recoverable heterogeneous solid acid catalyst in the presence of urea-hydrogen peroxide (UHP) under toxic transition metal-, solvent- and halogen-free conditions at room temperature The present method offers several noteworthy advantages, such as high product yields, easy work-up, non-toxicity, easy preparation and reusability of the catalyst for at least six runs, which make this procedure the most convenient and attractive with low cost of catalyst and oxidant. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Product Details of 53136-21-3

The Article related to sulfoxide preparation urea hydrogen peroxide silica oxidative catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Product Details of 53136-21-3

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

On September 30, 2022, Xia, Cencen; Hao, Xinyu; Jin, Kun; Zhang, Rong; Duan, Chunying; Li, Yaming published an article.Electric Literature of 93-04-9 The title of the article was Visible-Light-Mediated Direct Amidation of Arenes and Heteroarenes with N -Aminopyridinium Salts. And the article contained the following:

A novel photoinduced strategy has been developed for the C-H amidation of aromatics and heteroaromatics by using benzamide radicals such as 1,3,5-trimethylbenzene, 1-methoxynaphthalene, 1-methyl-1H-indole, 1-methyl-1H-pyrrole, etc. with free NH groups generated from N-amidopyridinium salts such as as 1-benzamido-2,4,6-triphenylpyridin-1-ium tetrafluoroborate under visible-light irradiation The new mode of activation of N-amidopyridinium salts proceeds efficiently under mild conditions to give various benzamide derivatives RNHC(O)C6H5 (R = 2,4,6-trimethylphenyl, 1-methoxynaphthalen-2-yl, 1-methyl-1H-indol-3-yl, etc.) with free NH groups. In addition, oxazoline analogs, synthesized by the reaction with styrene, demonstrate a substantial range of prospective applications for this versatile protocol. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Electric Literature of 93-04-9

The Article related to benzamide preparation, aminopyridinium salt arene amidation reaction, General Organic Chemistry: Synthetic Methods and other aspects.Electric Literature of 93-04-9

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

On July 17, 2020, Liu, Chenjing; Chen, Dengfeng; Fu, Yuanyuan; Wang, Fei; Luo, Jinyue; Huang, Shenlin published an article.Product Details of 53136-21-3 The title of the article was Sulfoxide Reduction/C(sp3)-S Metathesis Cascade in Ionic Liquid. And the article contained the following:

A sulfoxide reduction/C-S bond metathesis cascade between sulfoxides and alkyl bromides has been developed to access high-value sulfides without the use of any catalysts or bases. In this cascade, classical Kornblum oxidation is employed to reduce sulfoxides with alkyl bromides in ionic liquid This protocol features high functional tolerance, mild conditions, promising scalability, and sustainable solvents. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Product Details of 53136-21-3

The Article related to sulfoxide reduction metathesis cascade ionic liquid alkyl bromide, General Organic Chemistry: Synthetic Methods and other aspects.Product Details of 53136-21-3

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

On December 31, 2009, Azizi, N.; Amiri, A. Khajeh; Bolourtchian, M.; Saidi, M. R. published an article.Product Details of 53136-21-3 The title of the article was A green and highly efficient alkylation of thiols in water. And the article contained the following:

An environmentally benign and efficient process for the preparation of thioethers was developed by simple and practical reactions of alkyl halides and thiols in H2O in the presence of K2CO3 or Et3N in very high yields. The reaction of aryl, alkyl, aliphatic, and hindered thiols with various alkyl halides gave the corresponding products with significant advantages such as high conversions, short reaction time, mild reaction conditions, and low cost, simple workup with good to quant. yields. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Product Details of 53136-21-3

The Article related to thiol alkyl halide alkylation water, thioether green preparation, General Organic Chemistry: Synthetic Methods and other aspects.Product Details of 53136-21-3

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

On September 17, 2020, Ban, Shintaro; Endo, Tomotake; Matsui, Rikako; Morita, Nobuyoshi; Hashimoto, Yoshimitsu; Tanaka, Kosaku III; Tamura, Osamu published an article.Synthetic Route of 157869-15-3 The title of the article was Intramolecular activation of imidate with cationic gold(I) catalyst: A new benzylation reaction of alcohols. And the article contained the following:

Benzylation of alcs. with benzyl (Z)-2,2,2-trifluoro-N-(2-alkynylphenyl)acetimidates I (R1 = nBu, C6H5, 4-CF3C6H4, 4-MeOC6H4; R2 = H, NO2, OMe) in the presence of a cationic gold(I) catalyst was investigated. Reagent I (R1 = C6H5; R2 = OMe) was the most effective, affording benzyl ethers in good yields. This results indicate that these gold(I)-activated imidates are effective leaving groups. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Synthetic Route of 157869-15-3

The Article related to benzyl ether preparation gold catalyst, alc imidate benzylation, General Organic Chemistry: Synthetic Methods and other aspects.Synthetic Route of 157869-15-3

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

On February 28, 2021, Pynar, Suleyman Mesut; Erez, Mehmet Emre; Fidan, Mehmet; Erodlu, Huseyin; Dalar, Abdullah published an article.COA of Formula: C8H10O2 The title of the article was Determination of Biological Activity and Active Substances of Thecocarpus Carvifolius (BOISS.) Hedge & Lamond. And the article contained the following:

We have studied the antioxidant activity and analyzed active substances of the aqueous and methanol extracts of endemic species Thecocarpus carvifolius Hedge and Lamond. The antioxidant activity was identified and assessed using the DPPH, FRAP and iron chelating capacity assay. Active substances were detection, total phenolic, flavonoids and volatile compounds were analyzed. According to DPPH analyzes, the inhibition percentage was 48.57% for aqueous extract and 76.34% for methanol extract The FRAP reduction capacity was determined as 3.32 mg/mL for aqueous extract and 11.75 mg/mL FESO4 for methanol extract The total concentrations of phenolics and flavonoids were calculated as 64.08 – 35.29μg/mL and 146.84 – 555.66μg/mL in aqueous and methanol extracts, resp. Finally, five volatile compounds were detected in methanol extracts The results indicated that the endemic species of T. carvifolius can be evaluated as a natural antioxidant plant. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).COA of Formula: C8H10O2

The Article related to thecocarpus myrecene limonene terpinolene veratrole antioxidant, Plant Biochemistry: Composition and Products and other aspects.COA of Formula: C8H10O2

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

On February 29, 2020, Song, Song; Li, Xinyao; Wei, Jialiang; Wang, Weijin; Zhang, Yiqun; Ai, Lingsheng; Zhu, Yuchao; Shi, Xiaomeng; Zhang, Xiaohui; Jiao, Ning published an article.Synthetic Route of 91-16-7 The title of the article was DMSO-catalysed late-stage chlorination of (hetero)arenes. And the article contained the following:

A highly efficient aromatic chlorination of arenes such as 1-methyl-indazole, imidazo[1,2-a]pyrazine, phenylthiophene, anthracene, etc. that is catalyzed by DMSO with N-chlorosuccinimide as the chloro source is reported. The mild conditions, easy-availability and stability of the catalyst and reagents, as well as good functional-group tolerance, showed the approach to be a versatile protocol for the late-stage aromatic chlorination of complex natural products, e.g., papaverine, drugs, e.g., diclofenac and peptides, e.g., I. The multi-gram experiment and low-cost of N-chlorosuccinimide and DMSO show great potential for drug discovery and development in industrial applications. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Synthetic Route of 91-16-7

The Article related to arene heteroarene chlorination dimethyl sulfoxide catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Synthetic Route of 91-16-7

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

On February 29, 2020, Song, Song; Li, Xinyao; Wei, Jialiang; Wang, Weijin; Zhang, Yiqun; Ai, Lingsheng; Zhu, Yuchao; Shi, Xiaomeng; Zhang, Xiaohui; Jiao, Ning published an article.Quality Control of 1,4-Dimethoxybenzene The title of the article was DMSO-catalysed late-stage chlorination of (hetero)arenes. And the article contained the following:

A highly efficient aromatic chlorination of arenes such as 1-methyl-indazole, imidazo[1,2-a]pyrazine, phenylthiophene, anthracene, etc. that is catalyzed by DMSO with N-chlorosuccinimide as the chloro source is reported. The mild conditions, easy-availability and stability of the catalyst and reagents, as well as good functional-group tolerance, showed the approach to be a versatile protocol for the late-stage aromatic chlorination of complex natural products, e.g., papaverine, drugs, e.g., diclofenac and peptides, e.g., I. The multi-gram experiment and low-cost of N-chlorosuccinimide and DMSO show great potential for drug discovery and development in industrial applications. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Quality Control of 1,4-Dimethoxybenzene

The Article related to arene heteroarene chlorination dimethyl sulfoxide catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Quality Control of 1,4-Dimethoxybenzene

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

On February 29, 2020, Song, Song; Li, Xinyao; Wei, Jialiang; Wang, Weijin; Zhang, Yiqun; Ai, Lingsheng; Zhu, Yuchao; Shi, Xiaomeng; Zhang, Xiaohui; Jiao, Ning published an article.Application of 578-58-5 The title of the article was DMSO-catalysed late-stage chlorination of (hetero)arenes. And the article contained the following:

A highly efficient aromatic chlorination of arenes such as 1-methyl-indazole, imidazo[1,2-a]pyrazine, phenylthiophene, anthracene, etc. that is catalyzed by DMSO with N-chlorosuccinimide as the chloro source is reported. The mild conditions, easy-availability and stability of the catalyst and reagents, as well as good functional-group tolerance, showed the approach to be a versatile protocol for the late-stage aromatic chlorination of complex natural products, e.g., papaverine, drugs, e.g., diclofenac and peptides, e.g., I. The multi-gram experiment and low-cost of N-chlorosuccinimide and DMSO show great potential for drug discovery and development in industrial applications. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Application of 578-58-5

The Article related to arene heteroarene chlorination dimethyl sulfoxide catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Application of 578-58-5

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