Heterocyclic Building Blocks-benzodioxan

70918-54-6, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 70918-54-6, Name is (S)-1,4-Benzodioxane-2-carboxylic acid, molecular formula is C9H8O4. In a Article, authors is Moulat, Laure£¬once mentioned of 70918-54-6

Efficient monoacylation of symmetrical secondary alkanediamines and synthesis of unsymmetrical diacylated alkanediamines. A new L-proline-based organocatalyst

A simple procedure was developed for the monoacylation of several unprotected alkanediamines with carboxylic acids by using PyBOP-HOBt as coupling agent in the presence of DIEA at room temperature. Yields were moderate with primary alkanediamines and good to excellent with linear or cyclic secondary ones. To illustrate the utility of these monoacylated products, six unsymmetrical diacylated alkanediamines were synthesized. In addition, one of these compounds was evaluated as organocatalyst in an asymmetric aldol reaction. R’ R’ NHR O R N O R N PyBOP, HOBt PyBOP, HOBt DIEA, DMF DIEA, DMF NHR NHR O N O 10 equiv O R 11 exemples R’ R = H, alkyl R” OH 67-95% yield R” OH 6 exemples

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. 70918-54-6, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 70918-54-6, in my other articles.

Reference£º
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

In an article, published in an article,authors is Bhat, Mashooq Ahmad, once mentioned the application of 2879-20-1, Name is 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone,molecular formula is C10H10O3, is a conventional compound. this article was the specific content is as follows. 2879-20-1

Synthesis and antihepatotoxic activity of dihydropyrimidinone derivatives linked with 1,4-benzodioxane

Purpose: To evaluate the antihepatotoxic activity of dihydropyrimidinone derivative linked with 1,4-benzodioxane. Methods: A series of novel dihydropyrimidinone derivatives linked with 1,4-benzodioxane moiety were synthesized in good yield. Modern spectroscopic techniques and elemental analysis were used for the identification of the synthesized compounds. The hepatoprotective properties of compound 2, 4-(4-nitrophenyl)-5-(2,3-dihydro-1,4-benzodioxin-6-ylcarbonyl)-3,4-dihydropyrimidin-2(1H)-one, was evaluated in a carbon tetrachloride (CCl4 )-induced hepatotoxicity rat model. Results: Administration of compound 2 prior to CCl4 exposure produced a dose-dependent decrease in the levels of elevated biochemical parameters compared with the standard drug silymarin. CCl4 induced oxidative stress, increased lipid profile, and decreased high-density lipoprotein (HDL) levels. Compound 2 (20 mg/kg) significantly reduced the lipid profile and significantly improved HDL levels in a dose-dependent manner. CCl4 treatment increased malondialdehyde (MDA) level and decreased nonprotein thiol (NP-SH) and total protein (TP) in liver tissues. Pretreatment of rats with compound 2 (20 mg/kg) decreased MDA level and increased NP-SH and TP in liver tissues. Histopathological examination of liver tissues also confirmed the hepatoprotective activity of compound 2. Conclusion: These results demonstrate the antihepatotoxic activity of compound 2 in CCl4-induced hepatotoxicity model.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

22013-33-8, In an article, published in an article,authors is Chapleo, Christopher B., once mentioned the application of 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine,molecular formula is C8H9NO2, is a conventional compound. this article was the specific content is as follows.

Effect of 1,4-dioxanyl substitution on the adrenergic activity of some standard alpha-adrenoreceptor agents

A preliminary communication reported on the pharmacology of the potent partial alpha2-agonist (2-(1,4-benzodioxan-6-ylamino)-2-imidazoline, a 1,4-dioxan derivative of clonidine.Its degree of agonism/antagonism depended upon the peripheral or central alpha2-adrenoreceptor system studied.It was of interest to discover whether a similar substitution of the 1,4-dioxan moiety in other standard alpha-adrenergic agents would similary produce high affinity compounds of complex pharmacological profile.The same substitution when introduced into guanfacine, fenmetazole and tolazoline resulted in unpredictable changes in profile with a reduction in alpha-affinity. – alpha2-adrenoreceptors/antagonism/agonism/clonidine derivatives/1,4-dioxan derivatives

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

20632-12-6, 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, the author is Gazzaeva and a compound is mentioned, 20632-12-6, 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)propan-1-one, introducing its new discovery.

Synthesis of o-nitrosoacylbenzenes from o-nitrobenzyl alcohols and their derivatives

Nitration of substituted benzyl alcohols, as well as ethers and esters derived therefrom, with nitric acid in acetic anhydride was studied. The corresponding o-nitrobenzyl alcohols and their derivatives formed as the primary products are capable of being converted into o-nitrosoacylbenzenes by the action of acids. Pleiades Publishing, Inc., 2006.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

22013-33-8, In heterogeneous catalysis, the catalyst is in a different phase from the reactants. At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 22013-33-8, name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine. In an article£¬Which mentioned a new discovery about 22013-33-8

1-(sulfonyl)-5-(arylsulfonyl)indoline as activators of the tumor cell specific M2 isoform of pyruvate kinase

Cancer cells preferentially use glycolysis rather than oxidative phosphorylation for their rapid growth. They consume large amount of glucose to produce lactate even when oxygen is abundant, a phenomenon known as the Warburg effect. This metabolic change originates from a shift in the expression of alternative spliced isoforms of the glycolytic enzyme pyruvate kinase (PK), from PKM1 to PKM2. While PKM1 is constitutively active, PKM2 is switched from an inactive dimer form to an active tetramer form by small molecule activators. The prevalence of PKM2 in cancer cells relative to the prevalence of PKM1 in many normal cells, suggests a therapeutic strategy whereby activation of PKM2 may counter the abnormal cellular metabolism in cancer cells, and consequently decreased cellular proliferation. Herein we describe the discovery and optimization of a series of PKM2 activators derived from the 2-((2,3-dihydrobenzo[b][1,4] dioxin-6-yl)thio)-1-(2-methyl-1-(methylsulfonyl) indolin-5-yl) ethanone scaffold. The synthesis, SAR analysis, enzyme active site docking, enzymatic reaction kinetics, selectivity and pharmaceutical properties are discussed.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 22013-33-8 is helpful to your research. 22013-33-8

Reference£º
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

10288-72-9, In an article, published in an article,authors is Campbell, Michael G., once mentioned the application of 10288-72-9, Name is 6-Hydroxy-1,4-benzodioxane,molecular formula is C8H8O3, is a conventional compound. this article was the specific content is as follows.

Bimetallic photoredox catalysis: Visible light-promoted aerobic hydroxylation of arylboronic acids with a dirhodium(ii) catalyst

We report the use of a rhodium(II) dimer in visible light photoredox catalysis for the aerobic oxidation of arylboronic acids to phenols under mild conditions. Spectroscopic and computational studies indicate that the catalyst Rh2(bpy)2(OAc)4 (1) undergoes metal-metal to ligand charge transfer upon visible light irradiation, which is responsible for catalytic activity. Further reactivity studies demonstrate that 1 is a general photoredox catalyst for diverse oxidation reactions.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

214894-89-0, An article , which mentions 214894-89-0, molecular formula is C9H9BrO2. The compound – 5-(Bromomethyl)-2,3-dihydro-1,4-benzodioxine played an important role in people’s production and life.

Synthesis and biological evaluation of direct thrombin inhibitors bearing 4-(piperidin-1-yl)pyridine at the P1 position with potent anticoagulant activity

The design and synthesis of a new class of nonpeptide direct thrombin inhibitors, built on the structure of 1-(pyridin-4-yl)piperidine-4-carboxamide, are described. Starting from a strongly basic 1-amidinopiperidine derivative (6) showing poor thrombin (fIIa) and factor Xa (fXa) inhibition activities, anti-fIIa activity and artificial membrane permeability were considerably improved by optimizing the basic P1 and the X-substituted phenyl P4 binding moieties. Structure-activity relationship studies, usefully complemented with molecular modeling results, led us to identify compound 13b, which showed excellent fIIa inhibition (Ki = 6 nM), weak anti-Xa activity (K i = 5.64 muM), and remarkable selectivity over other serine proteases (e.g., trypsin). Compound 13b showed in vitro anticoagulant activity in the low micromolar range and significant membrane permeability. In mice (ex vivo), 13b demonstrated anticoagulant effects at 2 h after oral dosing (100 mg¡¤kg-1), with a significant 43% prolongation of the activated partial thromboplastin time (aPTT), over controls (P < 0.05). 214894-89-0, Interested yet? Read on for other articles about 214894-89-0!

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.214894-89-0, Name is 5-(Bromomethyl)-2,3-dihydro-1,4-benzodioxine, molecular formula is C9H9BrO2, 214894-89-0. In a Article, authors is Szczeniak, Piotr£¬once mentioned of 214894-89-0

Total Asymmetric Synthesis of (+)-Paroxetine and (+)-Femoxetine

Total, asymmetric synthesis of (+)-Paroxetine and (+)-Femoxetine, selective serotonin reuptake inhibitors, used for the treatment of depression, anxiety, and panic disorders is reported. The key step is organocatalytic Michael addition of aldehydes to trans-nitroalkenes realized in bath or continues flow. High efficiency and selectivity in the Michael addition was achieved by application of Wang resin-supported Hayashi?J¡ãrgensen catalyst.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.214894-89-0. In my other articles, you can also check out more blogs about 214894-89-0

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 214894-89-0, Name is 5-(Bromomethyl)-2,3-dihydro-1,4-benzodioxine, molecular formula is C9H9BrO2, 214894-89-0, In a Article, authors is O’Brien, Connor J.£¬once mentioned of 214894-89-0

Photoredox Cyanomethylation of Indoles: Catalyst Modification and Mechanism

The direct cyanomethylation of indoles at the 2- or 3-position was achieved via photoredox catalysis. The versatile nitrile synthon is introduced as a radical generated from bromoacetonitrile, a photocatalyst, and blue LED as a light source. The mechanism of the reaction is explored by determination of the Stern-Volmer quenching constants. By combining photophysical data and mass spectrometry to follow the catalyst decomposition, the catalyst ligands were tuned to enable synthetically useful yields of radical coupling products. A range of indole substrates with alkyl, aryl, halogen, ester, and ether functional groups participate in the reaction, affording products in 16-90% yields. The reaction allows the rapid construction of synthetically useful cyanomethylindoles, products that otherwise require several synthetic steps.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.214894-89-0. In my other articles, you can also check out more blogs about 214894-89-0

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 10288-72-9, In a patent£¬Which mentioned a new discovery about 10288-72-9

PROTEIN KINASE INHIBITORS FOR PROMOTING LIVER REGENERATION OR REDUCING OR PREVENTING HEPATOCYTE DEATH

The invention relates to MKK4 (mitogen-activated protein kinase 4) and their use in promoting liver regeneration or reducing or preventing hepatocyte death. The MKK4 inhibitors selectively inhibit protein kinase MKK4 over protein kinases JNK and MKK7.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem