Category: 497-25-6

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Samarium diiodide as an efficient catalyst for the conversion of N-acyloxazolidinones into esters

The transformation of N-acyloxazolidinones into esters is readily performed using catalytic amounts of samarium diiodide in tetrahydrofuran at room temperature. This method allows the isolation of various esters without racemization in the case of scalemic substrates and the recovery of oxazolidinones in good yields. Georg Thieme Verlag Stuttgart.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H784NO – PubChem

 

Application of 497-25-6, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 497-25-6, Name is Oxazolidin-2-one, molecular formula is C3H5NO2. In a Review£¬once mentioned of 497-25-6

Chemical fixation of CO2 to allylic (alpha-Allenylic) amines: A green route to synthesis of functionalized 2-Oxazolidones

2-Oxazolidones are an important class of nitrogen-containing heterocyclic compounds, which have been found to have a wide range of applications as chiral auxiliaries and chemical intermediates in organic synthesis. Moreover, some 2-oxazolidones such as linezolid, toloxatone, and tedizolidare are shown to have high potency as biologically active molecules and are widely used in the pharmaceutical industry. Therefore, many efforts have been dedicated to synthesize these useful cores. Among recent reported synthetic methods, the carboxylative cyclization reactions of inexpensive and easily available allylic and 2,3-allenic amines with CO2 are one of the most interesting and promising synthetic procedures from the viewpoint of developing CO2 as carbon source, since the chemical conversion of CO2 into the value-added chemicals is one of the most important topics in green and sustainable chemistry. In this mini review, we highlight the advances in the synthesis of 2-oxazolidone derivatives through chemical fixation of CO2 to allylic and 2,3-allenic amines from 1987 to 2017, with special emphasis on the mechanistic aspects of the reactions.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1089NO – PubChem

 

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 497-25-6, name is Oxazolidin-2-one, introducing its new discovery. Quality Control of Oxazolidin-2-one

Isocyanurate transformation induced healing of isocyanurate?oxazolidone polymers

Isocyanurate?oxazolidone (ISOX) polymers have been reported as a novel, intrinsically self-healable thermoset, and their healing mechanism under the effect of nucleophiles, such as tertiary amines and pyridines during polymerization, is thoroughly investigated in this study. This work provides evidence that the healing behavior of the polymers results part from the transformation of isocyanurate to oxazolidone on the fracture surfaces of the ISOX polymers at elevated temperatures. The isocyanurate transformation is characterized by chemical composition of the ISOX polymers before and after a predetermined healing procedure, through a combination characterization of Fourier transform infrared spectroscopy and carbon nuclear magnetic resonance spectroscopy. From the chemical composition of the ISOX polymers, an increased oxazolidone fraction is observed after the healing event, which verifies the hypothesized healing mechanism. By correlating the change in oxazolidone fraction in the polymers during the healing event, with the corresponding healing performance of the polymers, healing efficiencies of the polymers are shown to be inversely proportional to the ratio of oxazolidone to isocyanurate in the polymers. The transformation to oxazolidone is also shown to be dependent on two variables, nucleophilicity of the polymerization catalyst and duration of the postcure. The isocyanate and epoxide polymerization mechanism in the presence of nucleophiles is also investigated to explain the effect of the catalyst nucleophilicity on the chemical composition as well as the healing performance of the ISOX polymers.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1200NO – PubChem

 

Related Products of 497-25-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.497-25-6, Name is Oxazolidin-2-one, molecular formula is C3H5NO2. In a Patent£¬once mentioned of 497-25-6

AZAINDAZOLE COMPOUNDS AS INHIBITORS OF T790M CONTAINING EGFR MUTANTS

This invention relates to novel compounds of formula (I), which are inhibitors of T790M containing EGFR mutants, to pharmaceutical compositions containing them, to processes for their preparation, and to their use in therapy for the prevention or treatment of cancer.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H38NO – PubChem

 

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Substituted cis-hydrindan-4-ones by sequential cycloadditions

The synthesis of substituted cis-hydrindan-4-ones is reported. Particular emphasis was placed on the diastereoselective construction of quaternary stereogenic ring carbon atoms. An intermolecular asymmetric Al(III)-promoted (4+2)-cycloaddition served as the principal C/C-connecting tool. Opportunities for the further structural elaboration of the (4+2)-cycloadducts were explored.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1022NO – PubChem

 

Chemistry is traditionally divided into organic and inorganic chemistry. Safety of Oxazolidin-2-one, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 497-25-6

Thermal degradation comparison of amino acid salts, alkanolamines and diamines in CO2 capture

In the selection of candidates for post-combustion CO2 absorption, solvent degradation has become a general concern due to the significant impact on operational cost and the intention to use thermal compression from high temperature stripping to minimize the overall process energy. In this research, structural analogs of amino acid salts, alkanolamines and diamines were thermally degraded in order to explore their thermal stability from a structural standpoint. Functional groups, amine orders and steric effect were investigated for their impact on amine thermal degradation. Primary amines with chain structures showed a thermal stability trend as diamine > alkanolamine > amino acid salt. For alknolamine and diamine structural isomers, the primary amines are more stable than the secondary amines. Steric hindrance around the amine group was shown to play a positive role in protecting amines against thermal degradation.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H628NO – PubChem

 

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. COA of Formula: C3H5NO2. Introducing a new discovery about 497-25-6, Name is Oxazolidin-2-one

Efficient and recyclable Cu2(BDC)2(BPY)-catalyzed oxidative amidation of terminal alkynes: Role of bipyridine ligand

We have described an efficient method for oxidative cross coupling reactions between activated N-H amines and terminal alkynes using heterogeneous Cu2(BDC)2(BPY) as recyclable catalyst (BDC = benzene-1,4-dicarboxylate; BPY = 4,4?-bipyridine). The optimal conditions involved the use of inexpensive NaHCO3 base and oxygen as terminal oxidant in toluene solvent at 80C. Reactions proceeds efficiently, and high selectivity with only trace amount of diynes as well as good yields were achieved in a short reaction time. The Cu2(BDC)2(BPY) exhibited excellent catalytic activity and selectivity as compared to other Cu-MOFs on a broad reaction scope. Interestingly, the presence of bipyridine ligand was shown to enhance the catalyst stability. Thus, the Cu2(BDC)2(BPY) could be facilely separated from the reaction mixture by simple centrifugation and could be reused several times with only a slight decrease in catalytic activity.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H724NO – PubChem

 

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Copper-catalyzed intermolecular dehydrogenative amidation/amination of quinoline N-oxides with lactams/cyclamines

C-H, N-H dehydrogenative coupling of quinoline N-oxides with lactams/cyclamines has been achieved in the presence of the Cu(OAc)2 catalyst to give good to excellent yields. This study provides a new strategy for the construction of a 2-aminoquinoline skeleton via direct functionalization of aryl C-H bonds.

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Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H736NO – PubChem

 

Application of 497-25-6, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 497-25-6, Name is Oxazolidin-2-one, molecular formula is C3H5NO2. In a Article£¬once mentioned of 497-25-6

Role of aqueous methyldiethanolamine (MDEA) as solvent in natural gas sweetening unit and process contaminants with probable reaction pathway

Aqueous methyldiethanolamine (MDEA) is used as a solvent in natural gas sweetening unit, whose quality deteriorates while absorbing H2S/CO2 causing corrosion and foaming in the process. Total process contaminants of lean MDEA obtained from GASCO Company (Habshan, Abu Dhabi) were determined using different instruments. The major hydrocarbons found in inlet natural gas was analyzed using gas chromatography mass spectrometry (GC-MS). Heat stable salt (HSS) anions and metal ions were detected using ion chromatograph (IC) and inductively coupled plasma optical emission spectrometry (ICP-OES). Liquid chromatography mass spectrometry (LC-MS) and direct sample analysis time of flight (AxION 2TOF) analysis were carried out to determine and major organic degraded products present in lean MDEA solvent. The UV-VIS spectrophotometer also justified the presence of total organic acid anions. Acetate and propionate were found to be present in higher amounts of 2806 and 1614 ppm, respectively. Substantial amount of metal ions were also detected using ICP-OES with maximum level of heavy metal ions of lead and iron of 1.009 and 0.967 ppm, respectively. Large numbers of organic degraded products such as diethanolamine followed by methylethanolamine, N,N-bis(2-hydroxyethyl) glycine (bicine) etc. were identified using LC-MS and AxION 2TOF analyses; which are considered to be major organic thermally degraded products. Thermal degradation experiment was compared with H2S and in presence of both H2S/CO2 to obtain same compounds with varying concentration. On the basis of MDEA degradation as reported by previous researchers and from the analyzed lean MDEA samples, probable reaction pathways have been proposed.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H880NO – PubChem

 

497-25-6, Name is Oxazolidin-2-one, belongs to oxazolidine compound, is a common compound. Product Details of 497-25-6In an article, once mentioned the new application about 497-25-6.

New progress in azole compounds as antimicrobial agents

The increasing incidence of microbial resistance and newly emerging pathogens have become a serious challenge for public health. More and more efforts have been directed to the development of new antimicrobial agents with distinct mechanisms from the well-known classes of clinical drugs. The extensive clinical utilization of azole-based medicinal drugs has evoked numerous attentions, and their researches and developments have been a quite rapid developing and active highlight topic with an infinite space. Consideration of our researches on azole compounds and other literature in recent three years, this review scientifically reviewed the new progress of azole derivatives as antibacterial, antifungal, antitubercular and antiviral agents, including mono-nitrogen azoles (oxazoles, thiazoles and carbazoles), bis-nitrogen azoles (imidazoles, pyrazoles and benzimidazoles) and tri-nitrogen azoles (triazoles and benzotriazoles) as well as tetrazole derivatives. It was hoped that this review would be helpful for the design and development of highly efficient azole derivatives with high bioactivity and low toxicity.

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Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H1196NO – PubChem