Tag: M.W:100-200

Let¡¯s face it, organic chemistry can seem difficult to learn. 22013-33-8. Especially from a beginner¡¯s point of view. Like 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine. In a document type is Article, introducing its new discovery.

Tailoring the molecular design of twisted dihydrobenzodioxin phenanthroimidazole derivatives for non-doped blue organic light-emitting devices

Three fused polycyclic aryl fragments, namely, naphthyl, methoxynaphthyl, and pyrenyl have been used to construct blue-emissive phenanthroimidazole-functionalized target molecules, i.e., 1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(naphthalen-1-yl)-1H-phenanthro[9,10-d]imidazole (1), 1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(1-methoxynaphthalen-4-yl)-1H-phenanthro[9,10-d]imidazole (2), and 1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(pyren-10-yl)-1H-phenanthro[9,10-d]imidazole (3). The up-conversion of triplets to singlets via a triplet-triplet annihilation (TTA) process is dominant in these compounds due to 2ET1 > ES1. The pyrenyl dihydrobenzodioxin phenanthroimidazole (3)-based nondoped OLED exhibits blue emission (450 nm) with CIE (0.15, 0.14), a luminance of 53-890 cd m-2, power efficiency of 5.86 lm W-1, external quantum efficiency of 5.30%, and current efficiency of 6.90 cd A-1. The efficient device performance of pyrenyl dihydrobenzodioxin phenanthroimidazole is due to the TTA contribution to the electroluminescent process.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

70918-54-6, In an article, published in an article,authors is Chapleo, Christopher B., once mentioned the application of 70918-54-6, Name is (S)-1,4-Benzodioxane-2-carboxylic acid,molecular formula is C9H8O4, is a conventional compound. this article was the specific content is as follows.

2-<2-(1,4-BENZODIOXANYL)>-2-IMIDAZOLINE HYDROCHLORIDE

A new synthesis of 2-<2-(1,4-benzodioxanyl)>-2-imidazoline hydrochloride from 2-cyano-benzodioxan is described and the previously claimed route to this compound is shown to give a formula isomer, ie. 2-methyl-2-<2-(1,3-benzodioxolyl)>-2-imidazoline hydrochloride.

70918-54-6, Interested yet? Read on for other articles about 70918-54-6!

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

2879-20-1, One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time.In a article, authors is Martinez, Remi, mentioned the application of 2879-20-1, Name is 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone, molecular formula is C10H10O3

A versatile ruthenium catalyst for C-C bond formation by C-H bond activation

(Chemical Equation Presented) Easily modified: the electronic and steric properties of a ruthenium catalyst highly active for C-H bond activation (see scheme) can be modified by fine-tuning the ligand. This makes this catalytic system very versatile as it allows functionalization of a variety of substrates. The catalyst is generated in situ from a stable and easily available ruthenium(II) source.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. 2879-20-1, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 2879-20-1, in my other articles.

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

22013-33-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, molecular formula is C8H9NO2. In a Article, authors is Morkunas, Bernardas£¬once mentioned of 22013-33-8

Inhibition of the production of the Pseudomonas aeruginosa virulence factor pyocyanin in wild-type cells by quorum sensing autoinducer-mimics

Pseudomonas aeruginosa is a notorious human pathogen associated with a range of life-threatening nosocomial infections. There is an increasing problem of antibiotic resistance in P. aeruginosa, highlighted by the emergence of multi-drug resistant strains. Thus the exploration of new strategies for the treatment of P. aeruginosa infections is clearly warranted. P. aeruginosa is known to produce a range of virulence factors that enhance its ability to damage the host tissue and cause disease. One of the most important virulence factors is pyocyanin. P. aeruginosa regulates pyocyanin production using an intercellular communication mechanism called quorum sensing, which is mediated by small signalling molecules termed autoinducers. One native autoinducer is N-(3-oxododecanoyl)-l-homoserine lactone (OdDHL). Herein we report the synthesis of a collection of abiotic OdDHL-mimics. A number of novel compounds capable of competing with the endogenous OdDHL and consequently, inhibiting the production of pyocyanin in cultures of wild type P. aeruginosa were identified. We present evidence suggesting that compounds of this general structural type act as direct antagonists of quorum sensing in P. aeruginosa and as such may find value as molecular tools for the study and manipulation of this signalling pathway. A direct quantitative comparison of the pyocyanin suppressive activities of the most active OdDHL-mimics with some previously-reported inhibitors (based around different general structural frameworks) of quorum sensing from the literature, was also made.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. 22013-33-8, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 22013-33-8, in my other articles.

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

143809-21-6, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 143809-21-6, Name is 5-Methyl-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid, molecular formula is C10H10O4. In a Article, authors is Munk, Stephen A.£¬once mentioned of 143809-21-6

Synthesis and evaluation of 2-(arylamino)imidazoles as alpha2-adrenergic agonists

A series of 2-(arylamino)imidazoles was synthesized and evaluated for activity at alpha1- and alpha2-adrenoceptors. This class of agents has been shown to have potent and selective agonist activity at the alpha2-adrenoceptors. The most potent member of this class, 2-[(5-methyl-1,4-benzodioxan-6- yl)amino]imidazole, proved efficacious for the reduction of intraocular pressure upon topical administration and for the reduction of blood pressure upon intravenous administration. During the course of our studies, we developed a new reagent that allowed rapid assembly of the target compounds. This reagent, N-(2,2-diethoxyethyl)carbodiimide, was convenient to prepare and was stable under low-temperature storage conditions.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. 143809-21-6, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 143809-21-6, in my other articles.

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Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Because a catalyst decreases the height of the energy barrier, 2879-20-1, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.2879-20-1, Name is 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone, molecular formula is C10H10O3. In a article£¬once mentioned of 2879-20-1

Expedient synthesis of pyrrolo[1,2-a]quinoxalines through one-pot three-component reactions of o-phenylenediamines, 2-alkoxy-2,3-dihydrofurans and ketones

Pyrrolo[1,2-a]quinoxalines were synthesized through a three-component reaction of 2-alkoxy-2,3-dihydrofuran, o-phenylenediamine and ketone. This reaction was performed in nitromethane by using boron trifluoride etherate as catalyst. Mechanism of this reaction involves the following two steps: (i) a condensation reaction of the dihydrofuran with o-phenylenediamine, which produced a N-(2-aminophenyl)pyrrole derivative that can act as a 1,5-bisnucleophile, and (ii) an intramolecular Mannich-type reaction of the bisnucleophile and ketone to produce the pyrrolo[1,2-a]quinoxaline derivative.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. 2879-20-1, In my other articles, you can also check out more blogs about 2879-20-1

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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

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.

Interested yet? Keep reading other articles of 497-25-6!, 20632-12-6

Reference£º
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

22013-33-8, Interested yet? Read on for other articles about 22013-33-8!

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