Tag: 100-200

On May 15, 2021, Li, Mingxue; Mei, Qiong; Wei, Bo; An, Zexiu; Sun, Jianfei; Xie, Ju; He, Maoxia published an article.Category: ethers-buliding-blocks The title of the article was Mechanism and kinetics of ClO·-mediated degradation of aromatic compounds in aqueous solution: DFT and QSAR studies. And the article contained the following:

The action of ClO· is more prominent than HO· and Cl· in the advanced oxidation degradation of some pollutants. However, studies on the pollutant degradation mechanism and kinetics by ClO· are limited. In this study, 43 different kind of aromatic compounds which are important anthropogenic and natural water pollutants were selected as models to investigate their ClO· oxidation mechanism and kinetics computationally. The results showed that radical adduct formation (RAF) rather than single electron transfer (SET) reaction was prominent in ClO·-initiated reactions of aromatic compounds In subsequent reactions of the ClO-adduct, the Cl end of the -OCl moiety shifted to the benzene ring, which was the key to hydroxylation and chlorination of aromatic compounds by ClO·. The calculated ClO· initiated reaction rate constants (k·ClO) of aromatic compounds were 102-1010 M-1 s-1. ClO· was highly reactive to phenolates, anilines and alkoxy/hydroxyl aromatic compounds Upon the deprotonation of phenol to phenolate, the k·ClO value increased by 4 orders of magnitude. The k·ClO values of alkoxybenzenes were higher for compounds with shorter alkyl side chains and more alkoxy substituents. The k·ClO increased for anilines with longer alkyl side chains. The k·ClO quant. structure-activity relationships (QSARs) models were developed to predict the reactivity of ClO· to complex aromatic compounds in aquatic systems. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Category: ethers-buliding-blocks

The Article related to density functional theory degradation chlorine oxide radical wastewater treatment, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Category: ethers-buliding-blocks

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

On May 15, 2021, Li, Mingxue; Mei, Qiong; Wei, Bo; An, Zexiu; Sun, Jianfei; Xie, Ju; He, Maoxia published an article.Formula: C8H10O The title of the article was Mechanism and kinetics of ClO·-mediated degradation of aromatic compounds in aqueous solution: DFT and QSAR studies. And the article contained the following:

The action of ClO· is more prominent than HO· and Cl· in the advanced oxidation degradation of some pollutants. However, studies on the pollutant degradation mechanism and kinetics by ClO· are limited. In this study, 43 different kind of aromatic compounds which are important anthropogenic and natural water pollutants were selected as models to investigate their ClO· oxidation mechanism and kinetics computationally. The results showed that radical adduct formation (RAF) rather than single electron transfer (SET) reaction was prominent in ClO·-initiated reactions of aromatic compounds In subsequent reactions of the ClO-adduct, the Cl end of the -OCl moiety shifted to the benzene ring, which was the key to hydroxylation and chlorination of aromatic compounds by ClO·. The calculated ClO· initiated reaction rate constants (k·ClO) of aromatic compounds were 102-1010 M-1 s-1. ClO· was highly reactive to phenolates, anilines and alkoxy/hydroxyl aromatic compounds Upon the deprotonation of phenol to phenolate, the k·ClO value increased by 4 orders of magnitude. The k·ClO values of alkoxybenzenes were higher for compounds with shorter alkyl side chains and more alkoxy substituents. The k·ClO increased for anilines with longer alkyl side chains. The k·ClO quant. structure-activity relationships (QSARs) models were developed to predict the reactivity of ClO· to complex aromatic compounds in aquatic systems. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Formula: C8H10O

The Article related to density functional theory degradation chlorine oxide radical wastewater treatment, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Formula: C8H10O

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

On July 16, 2021, Kolb, Simon; Ahlburg, Nils L.; Werz, Daniel B. published an article.Formula: C8H10O2 The title of the article was Friedel-Crafts-Type Reactions with Electrochemically Generated Electrophiles from Donor-Acceptor Cyclopropanes and -Butanes. And the article contained the following:

A general electrochem. method to functionalize donor-acceptor (D-A) cyclopropanes and -butanes with arenes utilizing Friedel-Crafts-type reactivity is discussed. The catalyst-free strategy relies on the direct anodic oxidation of the strained carbocycles, which leads after C(sp3)-C(sp3) cleavage to radical cations that act as electrophiles for the arylation reaction. Broad reaction scopes in regard to cyclopropanes, cyclobutanes, and aromatic reaction partners are presented. Addnl., a plausible electrolysis mechanism is proposed. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Formula: C8H10O2

The Article related to cyclopropane cyclobutane arene electrochem friedel crafts type reaction, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: General and other aspects.Formula: C8H10O2

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

On August 6, 2021, Sukowski, Verena; Jia, Wen-Liang; van Diest, Rianne; van Borselen, Manuela; Fernandez-Ibanez, M. Angeles published an article.SDS of cas: 578-58-5 The title of the article was S,O-Ligand-Promoted Pd-Catalyzed C-H Olefination of Anisole Derivatives. And the article contained the following:

The C-H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. The reaction proceeds under mild conditions with a broad range of substituted aryl ethers bearing both electron donating and withdrawing substituents at ortho, meta and para positions. Aryl ethers are used as limiting reagents and good yields and site selectivities are observed The methodol. is operationally simple and can be performed under aerobic conditions. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).SDS of cas: 578-58-5

The Article related to anisole olefination palladium catalyst, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: General and other aspects.SDS of cas: 578-58-5

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

On August 6, 2021, Sukowski, Verena; Jia, Wen-Liang; van Diest, Rianne; van Borselen, Manuela; Fernandez-Ibanez, M. Angeles published an article.Quality Control of 1,4-Dimethoxybenzene The title of the article was S,O-Ligand-Promoted Pd-Catalyzed C-H Olefination of Anisole Derivatives. And the article contained the following:

The C-H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. The reaction proceeds under mild conditions with a broad range of substituted aryl ethers bearing both electron donating and withdrawing substituents at ortho, meta and para positions. Aryl ethers are used as limiting reagents and good yields and site selectivities are observed The methodol. is operationally simple and can be performed under aerobic conditions. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Quality Control of 1,4-Dimethoxybenzene

The Article related to anisole olefination palladium catalyst, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: General and other aspects.Quality Control of 1,4-Dimethoxybenzene

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

On August 6, 2021, Sukowski, Verena; Jia, Wen-Liang; van Diest, Rianne; van Borselen, Manuela; Fernandez-Ibanez, M. Angeles published an article.SDS of cas: 321-28-8 The title of the article was S,O-Ligand-Promoted Pd-Catalyzed C-H Olefination of Anisole Derivatives. And the article contained the following:

The C-H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. The reaction proceeds under mild conditions with a broad range of substituted aryl ethers bearing both electron donating and withdrawing substituents at ortho, meta and para positions. Aryl ethers are used as limiting reagents and good yields and site selectivities are observed The methodol. is operationally simple and can be performed under aerobic conditions. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).SDS of cas: 321-28-8

The Article related to anisole olefination palladium catalyst, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: General and other aspects.SDS of cas: 321-28-8

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

On October 7, 2020, Tuo, Wei; Sun, Yan; Lu, Shuai; Li, Xiaopeng; Sun, Yao; Stang, Peter J. published an article.Product Details of 150-78-7 The title of the article was Pillar[5]arene-Containing Metallacycles and Host-Guest Interaction Caused Aggregation-Induced Emission Enhancement Platforms. And the article contained the following:

Coordination-driven Pt metallacycles have shown potential in controllable modular self-assembly, which has made a vital contribution to biomedicine, catalysis, and multiresponsive materials. Herein, pillar[5]arene units were integrated into one skeleton through coordination-driven self-assembly, resulting in the formation of a hexagonal Pt(II) metallacycle decorated with six pillar[5]arenes. The host-guest interactions of the as-prepared metallacycle (pillar[5]arenes as hosts) and 1-butyl-4-[4-(diphenylamino)styryl]pyridinium (guest) were investigated. The metallacycle was found to facilitate the coaggregation between the guests and pillar[5]arenes through a synergistic effect, thus engendering a sharp increase in fluorescence intensity. The resultant aggregate was investigated by DLS and TEM. Our studies imply that the pillar[5]arene-containing metallacycle can serve as a potential platform for realizing emission enhancement effects. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Product Details of 150-78-7

The Article related to pillararene containing metallacycle host guest interaction, aggregation induced emission enhancement, Physical Organic Chemistry: Other Reactions, Processes, and Spectra and other aspects.Product Details of 150-78-7

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

On January 1, 2021, Thangavel, Arumugam published an article.SDS of cas: 150-78-7 The title of the article was Inclusion and Charge Transfer Interaction of a Multi-Redox Active 1,3,5-Triazine Derivative by Cucurbit[7,8]urils. And the article contained the following:

The redox active 1,3,5-triazine derivative (MPT) was used as a guest to study host-guest, charge transfer interaction with CB[7,8] in water. The multi-redox active MPT undergoes four chem. and electrochem. reversible one electron redox states in organic media, but in water, the fourth redox state shows an unstable nature. As a guest, the host-guest interaction of MPT was studied with two macrocyclic cucurbit[7,8]uril (CB[7,8]) hosts in water; resulting supramol. complexes were characterized by NMR, ESI-MS, UV-vis, ITC, and cyclic voltammetric studies. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).SDS of cas: 150-78-7

The Article related to triazine multiredox active derivative cucurbituril inclusion reaction charge transfer, Physical Organic Chemistry: Other Reactions, Processes, and Spectra and other aspects.SDS of cas: 150-78-7

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

On May 22, 2019, Zhang, Yongqian; Tamijani, Ali A.; Taylor, Megan E.; Zhi, Bo; Haynes, Christy L.; Mason, Sara E.; Hamers, Robert J. published an article.SDS of cas: 929-37-3 The title of the article was Molecular Surface Functionalization of Carbon Materials via Radical-Induced Grafting of Terminal Alkenes. And the article contained the following:

Formation of functional monolayers on surfaces of carbon materials is inherently difficult because of the high bond strength of carbon and because common pathways such as SN2 mechanisms cannot take place at surfaces of solid materials. Here, we show that the radical initiators can selectively abstract H atoms from H-terminated carbon surfaces, initiating regioselective grafting of terminal alkenes to surfaces of diamond, glassy carbon, and polymeric carbon dots. NMR and XPS demonstrate formation of self-terminating organic monolayers linked via the terminal C atom of 1-alkenes. D. functional theory (DFT) calculations suggest that this selectivity is at least partially thermodn. in origin, as significantly less energy is needed to abstract H atoms from carbon surfaces as compared to typical aliphatic compounds The regioselectivity favoring binding to the terminal C atom of the reactant alkenes arises from steric hindrance encountered in bond formation at the adjacent carbon atom. Our results demonstrate that carbon surface radical chem. yields a versatile, selective, and scalable approach to monolayer formation on H-terminated carbon surfaces and provide mechanistic insights into the surface selectivity and regioselectivity of mol. grafting. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).SDS of cas: 929-37-3

The Article related to carbon material surface functionalization radical induced grafting terminal alkene, Physical Organic Chemistry: Other Reactions, Processes, and Spectra and other aspects.SDS of cas: 929-37-3

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

On June 30, 2014, Wu, Xiaoqin; Bai, Peng; Guo, Xianghai; He, Nana published an article.Quality Control of 1-Fluoro-2-methoxybenzene The title of the article was 2,4-Difluoroanisole: a promising complexing agent for boron isotopes separation by chemical exchange reaction and distillation. And the article contained the following:

Although methods of boron isotopes separation were intensively pursued about 60 years, the chem. exchange distillation is the only method that has been applied in industrial scale production of 10B. The present anisole BF3 system suffers from the drawbacks like high m.p., relatively low separation coefficient and instability under reaction conditions, which demand a continuous search for more effective and efficient donors for boron isotope separation A series of fluoro-substituted anisole derivatives were screened in this paper, among which 2,4-difluoroanisole exhibited good properties compared with anisole. Studies on the boron trifluoride and 2,4-difluoroanisole adduct, its thermodn. and phys. properties related to large-scale isotopic separation is reported. The results showed that 2,4-difluoroanisole is better than anisole in separation coefficient, f.p. and stability under pyrolysis conditions, which suggest a further detailed investigations on boron trifluoride and 2,4-difluoroanisole adduct. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Quality Control of 1-Fluoro-2-methoxybenzene

The Article related to fluoroanisole complexing agent boron isotope separation chem exchange distillation, Physical Organic Chemistry: Other Reactions, Processes, and Spectra and other aspects.Quality Control of 1-Fluoro-2-methoxybenzene

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