Category: 578-58-5

On June 15, 2021, Ma, Chuan; Sanchez-Rodriguez, Daniel; Kamo, Tohru published an article.Application of 578-58-5 The title of the article was A comprehensive study on the oxidative pyrolysis of epoxy resin from fiber/epoxy composites: Product characteristics and kinetics. And the article contained the following:

Thermal treatment has been the most feasible process to recycle valuable carbon fibers and obtain fuel and chems. from waste fiber/epoxy composites. The present work studied the oxidative pyrolysis behaviors of epoxy resin from fiber/epoxy composites using a thermogravimetric apparatus and a fixed-bed reactor, resp. The effects of various O2 concentrations on the thermal behaviors of epoxy resin were investigated and the product characteristics were analyzed. Furthermore, a multi distributed activation energy model (multi-DAEM) was first developed to determine the oxidative pyrolysis kinetics of epoxy resin under various atmospheres. Results showed that the degradation behaviors of epoxy resin were largely altered by the O2 concentrations High O2 concentrations accelerated the primary decomposition of epoxy resin and shifted the oxidation of resin residue into lower temperatures High contents of methylcyclohexene and phenolic derivatives were detected in liquid products. In air atm., high yields of CO and CO2 were generated and distributed in several stages. The kinetic anal. indicated that the multi-DAEM method can well explain the oxidative pyrolysis behaviors of epoxy resin. A min. six-reaction fitting process can perfectly simulate the oxidative pyrolysis of epoxy resin. The predictions for various O2 concentrations were in good agreement with the exptl. tests. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Application of 578-58-5

The Article related to epoxy resin oxidative thermal treatment pyrolysis simulation, epoxy resin, kinetics, oxidation, product characteristics, pyrolysis, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Application of 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.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 March 15, 2021, Aniceto, Jose P. S.; Zezere, Bruno; Silva, Carlos M. published an article.HPLC of Formula: 578-58-5 The title of the article was Machine learning models for the prediction of diffusivities in supercritical CO2 systems. And the article contained the following:

The mol. diffusion coefficient is fundamental to estimate dispersion coefficients, convective mass transfer coefficients, etc. Since exptl. diffusion data is scarce, there is significant demand for accurate models capable of providing reliable diffusion coefficient estimations In this work we applied machine learning algorithms to develop predictive models to estimate diffusivities of solutes in supercritical carbon dioxide. A database of exptl. data containing 13 properties for 174 binary systems totaling 4917 data points was used in the training of the models. Five machine learning algorithms were evaluated and the results were compared with three commonly used classic models. The best results were found using the Gradient Boosted algorithm which showed an average absolute relative deviation (AARD) of 2.58% (pure prediction). This model has five parameters: temperature, d., solute molar mass, solute critical pressure and solute acentric factor. For the same dataset, the classic Wilke-Chang equation showed AARD of 12.41%. The developed model is provided as command line program. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).HPLC of Formula: 578-58-5

The Article related to carbon dioxide supercritical system machine learning diffusivity, Phase Equilibriums, Chemical Equilibriums, and Solutions: Fused Salts and other aspects.HPLC of Formula: 578-58-5

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

On April 30, 2021, Jain, Suresh S.; Yadav, Ganapati D. published an article.Related Products of 578-58-5 The title of the article was Kinetic study for ionic liquid catalyzed green O-methylation of cresols using dimethyl carbonate. And the article contained the following:

In this work, we have systematically studied the kinetics and mechanism of ionic liquid catalyzed solvent less liquid-phase O-methylation of p-cresol with di-Me carbonate (DMC). The effect of various parameters such as mass transfer resistance, catalyst loading, mole ratio, initial CO2 pressure, and temperature was studied. The reaction was found to be pseudo zero order with respect to p-cresol and first order with respect to DMC. o- and m-Cresols were also used. The values of apparent activation energy for o-, m-, and p-cresol are found as 32.5, 34.0, and 32.5 kcal/mol, resp. Our study also suggests that type of cation and anion affects the catalytic acitivity of ionic liquids Ionic liquid, tetra Bu phosphonium bromide, offers excellent activity, selectivity, reusability, recyclability and stability. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Related Products of 578-58-5

The Article related to methylation cresol ionic liquid catalyst reaction kinetic study, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Related Products of 578-58-5

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

Pratali Maffei, Luna; Faravelli, Tiziano; Cavallotti, Carlo; Pelucchi, Matteo published an article in 2020, the title of the article was Electronic structure-based rate rules for H ipso addition-elimination reactions on mono-aromatic hydrocarbons with single and double OH/CH3/OCH3/CHO/C2H5 substituents: a systematic theoretical investigation.Quality Control of 2-Methylanisole And the article contains the following content:

The recent interest in bio-oils combustion and the key role of mono-aromatic hydrocarbons (MAHs) in existing kinetic frameworks, both in terms of poly-aromatic hydrocarbons growth and surrogate fuels formulation, motivates the current systematic theor. investigation of one of the relevant reaction classes in MAHs pyrolysis and oxidation: ipso substitution by hydrogen. State-of-the-art theor. methods and protocols implemented in automatized computational routines allowed to investigate 14 different potential energy surfaces involving MAHs with hydroxy and Me single (phenol and toluene) and double (o-,m-,p-C6H4(OH)2, o-,m-,p-CH3C6H4OH, and o-,m-,p-C6H4(CH3)2) substituents, providing rate constants for direct implementation in existing kinetic models. The accuracy of the adopted theor. method was validated by comparison of the computed rate constants with the available literature data. Systematic trends in energy barriers, pre-exponential factors, and temperature dependence of the Arrhenius parameters were found, encouraging the formulation of rate rules for H ipso substitutions on MAHs. The rules here proposed allow to extrapolate from a reference system the necessary activation energy and pre-exponential factor corrections for a large number of reactions from a limited set of electronic structure calculations We were able to estimate rate constants for other 63 H ipso addn-elimination reactions on di-substituted MAHs, reporting in total 75 rate constants for H ipso substitution reactions o-,m-,p-R’C6H4R + H → C6H5R + R’, with R,R’ = OH/CH3/OCH3/CHO/C2H5, in the 300-2000 K range. Addnl. calculations performed for validation showed that the proposed rate rules are in excellent agreement with the rate constants calculated using the full computational protocol in the 500-2000 K range, generally with errors below 20%, increasing up to 40% in a few cases. The main results of this work are the successful application of automatized electronic structure calculations for the derivation of accurate rate constants for H ipso substitution reactions on MAHs, and an efficient and innovative approach for rate rules formulation for this reaction class. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Quality Control of 2-Methylanisole

The Article related to phenol toluene substitution reaction kinetics activation energy, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Quality Control of 2-Methylanisole

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

Hashimoto, Riichi; Hanaya, Kengo; Sugai, Takeshi; Higashibayashi, Shuhei published an article in 2022, the title of the article was 1,2-Rearrangement from o-Quinols to Multisubstituted Catechols via Retro Diels-Alder Reaction of o-Quinol Dimers.SDS of cas: 578-58-5 And the article contains the following content:

The 1,2-rearrangement of o-quinols has been a long-standing unsolved problem since 1958. Although the rearrangement is expected to be useful for syntheses of catechol derivatives, it is hampered by many competing reactions and has not been developed as a useful methodol. Here, authors succeeded in settling this problem by a first systematic thorough investigation, establishing the 1,2-rearrangement as a cascade reaction with a retro Diels-Alder reaction from o-quinol dimers. This is a useful strategy for syntheses of substituted catechols used as synthetic building blocks for bioactive compounds and material mols. o-Quinol dimers were synthesized by improved oxidative hydroxylation of substituted phenols followed by spontaneous Diels-Alder reaction. The dimers then underwent the retro Diels-Alder reaction to regenerate the o-quinols followed by 1,2-rearrangement under neutral heating conditions at an appropriate temperature depending on the migratory substituent, furnishing substituted catechols in good yields. The competing reactions such as an elimination of a substituent or α-ketol rearrangement were minimized by controlling the reaction temperature The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).SDS of cas: 578-58-5

The Article related to quinol dimer catechol preparation regioselective, phenol hydroxylation retro diels alder rearrangement, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Alcohols and Thiols and other aspects.SDS of cas: 578-58-5

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

On November 16, 2020, Kim, Saegun; Jeoung, Daeun; Kim, Kunyoung; Lee, Seok Beom; Lee, Suk Hun; Park, Min Seo; Ghosh, Prithwish; Mishra, Neeraj Kumar; Hong, Suckchang; Kim, In Su published an article.Application In Synthesis of 2-Methylanisole The title of the article was Site-Selective C-H Amidation of 2-Aryl Quinazolinones Using Nitrene Surrogates. And the article contained the following:

The site-selective modifications of quinazolinones constitute a pivotal topic in drug discovery and material science. Herein, we describe the rhodium(III)-catalyzed C-H amidation of 2-aryl quinazolin-4(3H)-ones with a range of nitrene surrogates including dioxazolones, organic azides, and N-methoxyamides. Complete site-selectivity and functional group tolerance are observed Notably, the large-scale reaction and late-stage functionalization highlight the synthetic potential of the developed protocol. Combined mechanistic investigations elucidate a plausible reaction mechanism of this process. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Application In Synthesis of 2-Methylanisole

The Article related to aryl quinazolinone nitrene surrogate regioselective rhodium amidation, functionalized quinazolinone preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Application In Synthesis of 2-Methylanisole

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

On October 1, 2020, Blanco, E.; Sepulveda, C.; Cruces, K.; Garcia-Fierro, J. L.; Ghampson, I. T.; Escalona, N. published an article.Product Details of 578-58-5 The title of the article was Conversion of guaiacol over metal carbides supported on activated carbon catalysts. And the article contained the following:

The preparation and use of new supported transition metal carbides as catalyst for the conversion of guaiacol was studied. Several metals (Mo, Re, Ru, Ni, Fe, and Cu) were impregnated over activated C and carburized under a mixture of H2/C2H4 at 700°. Catalysts were characterized by XRD, N2 physisorption, XPS, CO chemisorption, and TPR-MS. Evidence for carbide formation was obtained in the case of Mo, Re, Ni and Ru, based primarily on CO formation during the TPR-MS anal. Carbides were mainly active for primary guaiacol conversion to phenol and catechol through demethoxylation and demethylation. Completely deoxygenated products such as benzene and cyclohexane were also formed. The highest selectivity in benzene was obtained for the Re-TPR catalyst while Ni-TPR was the most hydrogenative one. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Product Details of 578-58-5

The Article related to guaiacol conversion transition metal carbide supported activated carbon catalyst, Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms: Catalytic Reactions and other aspects.Product Details of 578-58-5

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

Xu, Fan; Smith, Myles W. published an article in 2021, the title of the article was A general approach to 2,2-disubstituted indoxyls: total synthesis of brevianamide A and trigonoliimine C.Related Products of 578-58-5 And the article contains the following content:

The indoxyl unit is a common structural motif in alkaloid natural products and bioactive compounds Herein, a general method that transforms readily available 2-substituted indoles into 2,2-disubstituted indoxyls via nucleophile coupling with a 2-alkoxyindoxyl intermediate and showcase its utility in short total syntheses of the alkaloids brevianamide A (7 steps) and trigonoliimine C (6 steps) is reported. The developed method is operationally simple and demonstrates broad scope in terms of nucleophile identity and indole substitution, tolerating 2-alkyl substituents and free indole N-H groups, elements beyond the scope of most prior approaches. Spirocyclic indoxyl products are also accessible via intramol. nucleophilic trapping. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Related Products of 578-58-5

The Article related to indoxyl preparation, indole nucleophile coupling, brevianamide a trigonoliimine c total synthesis, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Related Products of 578-58-5

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

Xu, Fan; Smith, Myles W. published an article in 2021, the title of the article was A general approach to 2,2-disubstituted indoxyls: total synthesis of brevianamide A and trigonoliimine C.Related Products of 578-58-5 And the article contains the following content:

The indoxyl unit is a common structural motif in alkaloid natural products and bioactive compounds Herein, a general method that transforms readily available 2-substituted indoles into 2,2-disubstituted indoxyls via nucleophile coupling with a 2-alkoxyindoxyl intermediate and showcase its utility in short total syntheses of the alkaloids brevianamide A (7 steps) and trigonoliimine C (6 steps) is reported. The developed method is operationally simple and demonstrates broad scope in terms of nucleophile identity and indole substitution, tolerating 2-alkyl substituents and free indole N-H groups, elements beyond the scope of most prior approaches. Spirocyclic indoxyl products are also accessible via intramol. nucleophilic trapping. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Related Products of 578-58-5

The Article related to indoxyl preparation, indole nucleophile coupling, brevianamide a trigonoliimine c total synthesis, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Related Products of 578-58-5

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