Category: 22929-52-8

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Recommanded Product: 22929-52-8, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 22929-52-8, name is Dihydrofuran-3(2H)-one. In an article，Which mentioned a new discovery about 22929-52-8

We report a combined experimental and quantum chemistry study of the initial reactions in low-temperature oxidation of tetrahydrofuran (THF). Using synchrotron-based time-resolved VUV photoionization mass spectrometry, we probe numerous transient intermediates and products at P = 10-2000 Torr and T = 400-700 K. A key reaction sequence, revealed by our experiments, is the conversion of THF-yl peroxy to hydroperoxy-THF-yl radicals (QOOH), followed by a second O2 addition and subsequent decomposition to dihydrofuranyl hydroperoxide + HO2 or to gamma-butyrolactone hydroperoxide + OH. The competition between these two pathways affects the degree of radical chain-branching and is likely of central importance in modeling the autoignition of THF. We interpret our data with the aid of quantum chemical calculations of the THF-yl + O2 and QOOH + O2 potential energy surfaces. On the basis of our results, we propose a simplified THF oxidation mechanism below 700 K, which involves the competition among unimolecular decomposition and oxidation pathways of QOOH. (Graph Presented).

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Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

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The invention discloses a method for the elimination of the DAST reagent as the reagent synthetic conjugated nitryl alkene substituted series derivatives of the preparation method, comprises the following steps: to carbonyl compound (compound II) as the raw material, under the alkaline condition and nitromethane reaction to produce the compound III; III through the DAST substituted hydroxy compound after the elimination of preparation get the conjugated nitryl alkene substituted series derivatives (compound I). (by machine translation)

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Synthetic Route of 22929-52-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.22929-52-8, Name is Dihydrofuran-3(2H)-one, molecular formula is C4H6O2. In a Patent，once mentioned of 22929-52-8

The present invention relates to compounds useful as inhibitors of PI3K, particularly of PI3Kgamma. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, category: Tetrahydrofurans, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 22929-52-8, Name is Dihydrofuran-3(2H)-one, molecular formula is C4H6O2

The present invention provides a compound of formula (I): and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof. Also provided are pharmaceutical compositions containing these compounds and methods of treating a disease or condition mediated by CDK9 using these compounds and compositions.

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Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

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The reactivity of the 4-amino-5H-1,2-oxathiole-2,2-dioxide (or beta-amino-gamma-sultone) heterocyclic system has scarcely been studied. Here we describe the reactivity of this system towards electrophiles and amines on readily available model substrates differently substituted at the C-5 position. A variety of C-electrophiles, carbonyl electrophiles (such as acyl chlorides, isocyanates, or aldehydes) and halogen or nitrogen electrophiles have been explored. Both the C-3 and 4-amino positions of the beta-amino-gamma- sultone system are able to undergo electrophilic reactions, and the reaction products depend on the electrophile used and on the reaction conditions. On the other hand, nucleophilic attack of amines occurs at the C-4 position of the beta-amino-gamma-sultone system only in spiranic substrates bearing alicyclic substituents at the C-5 position. A comparative computational study between spiranic and non-spiranic substrates suggests that conformational changes, undergone on intermediate compounds, account for the observed reactivity differences. Moreover, these conformational changes seem to bring about an increase of electron density on the N-4 and C-3 atoms of the enaminic system, and a possible enhancement in the reactivity of spiranic substrates towards electrophiles in the presence of amines. Experimental data consistent with this predicted enhanced reactivity is also presented.

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Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

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The present invention relates to compounds according to general formula (I) which act as modulators of the glucocorticoid receptor and can be used in the treatment and/or prophylaxis of disorders which are at least partially mediated by the glucocorticoid receptor.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

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This application has been described can be used as opioid receptor ligand compounds and salts thereof, and its preparation method and a composition containing the compound, and it can be regarded as mu opioid receptor agonists, used for the treatment of mu opioid receptor-mediated related disease, such as pain and pain related disorders. (by machine translation)

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Reference of 22929-52-8, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.22929-52-8, Name is Dihydrofuran-3(2H)-one, molecular formula is C4H6O2. In a article，once mentioned of 22929-52-8

The method disclosed by the 3 – invention is low in cost, easy and simple to operate, low, in cost and low 3 – in cost, 3 . (by machine translation)

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – 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, 22929-52-8, name is Dihydrofuran-3(2H)-one, introducing its new discovery. SDS of cas: 22929-52-8

The products obtained by treatment of beta-tetrahydrofurylmethanols at 310-330 deg C, using alumina as catalyst are studied.The nature of the products-furans, tetrahydrofurans, aliphatic and cyclic dienes-shows that beside the simple dehydration side reactions take place leading, as the case may be, to dehydrogenation, raduction, ring opening and fragmentation.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Application of 22929-52-8, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 22929-52-8, Dihydrofuran-3(2H)-one, introducing its new discovery.

A strategy for lead identification of new agonists of GPR109a, starting from known compounds shown to activate the receptor, is described. Early compound triage led to the formulation of a binding hypothesis and eventually to our focus on a series of pyrazole acid derivatives. Further elaboration of these compounds provided a series of 5,5-fused pyrazoles to be used as lead compounds for further optimization.

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Referenceï¼?br>Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem