Month: July 2021

New research progress on 22013-33-8 in 2021. In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. HPLC of Formula: C8H9NO2, In a article, mentioned the application of 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, molecular formula is C8H9NO2

Four new organic photosensitizers (SH-11?14) that introduced methoxy groups as an additional donor were synthesized, and used in dye-sensitized solar cells. The dyes were designed in order to investigate the effects on the dye photophysical properties and the cell photovoltaic performance, by the number, position, and shape of methoxy groups introduced at the para-/ortho- and para-/meta- and para-(open or closed ring shape) positions on the triphenylamine donor. The introduction of methoxy groups led to bathochromic shift of the absorption spectrum, and enhancement of the molar extinction coefficient of the dyes. Their introduction decreased the amount of dye adsorbed on TiO2surface, due to the increased steric hindrance. As their number increased, an open-circuit voltage value decreased. All things considered, the dye (SH-14) with closed ring shape shows the best conversion efficiency of 6.01% under AM 1.5G conditions (N719 dye’s 7.59% under the same conditions).

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. Recommanded Product: 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethanone, In a article, 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 class of less toxic retinoids, called heteroarotinoids, was evaluated for their molecular mechanism of growth inhibition of two head and neck squamous cell carcinoma (HNSCC) cell lines SCC-2 and SCC-38. A series of 14 heteroarotinoids were screened for growth inhibition activity in vitro. The two most active compounds, one that contained an oxygen heteroatom (6) and the other a sulfur heteroatom (16), were evaluated in a xenograph model of tumor establishment in nude mice. Five days after subcutaneous injection of 107 SCC-38 cells, groups of 5 nu/nu mice were gavaged daily (5 days/week for 4 weeks) with 20 mg/kg/day of all-trans-retinoic acid (t-RA, 1), 10 mg/kg/day of 6, 10 mg/kg/day of 16, or sesame oil. After a few days, the dose of t-RA (1) was decreased to 10 mg/kg/day to alleviate the side effects of eczema and bone fracture. No significant toxic effects were observed in the heteroarotinoid groups. All three retinoids caused a statistically significant reduction in tumor size as determined by the student t-test (P < 0.05). Complete tumor regression was noted in 3 of 5 mice treated with t-RA (1), 4 of 5 mice treated with 16, 1 of 5 mice treated with 6, and 1 of 5 mice treated with sesame oil. Reverse transcriptase polymerase chain reaction (RT- PCR) was used to determine that the expression levels of RARalpha, RXRalpha, and RXRbeta were similar in the two cell lines, while RARbeta expression was higher in SCC-2 over SCC-38, and RARgamma expression was higher in SCC-38 over SCC-2. Receptor cotransfection assays in CV-1 cells demonstrated that 16 was a potent activator of both RAR and RXR receptors, while 6 was selective for the RXR receptors. Transient cotransfection assays in CV-1 cells using an AP-1 responsive reporter plasmid demonstrated that t-RA (1), 6, and 16 each inhibited AP-1-driven transcription in this cell line. In conclusion, the growth inhibition activity of the RXR-selective 6 and the more potent growth inhibition activity of the RAR/pan-agonist 16 implicate both RARs and RXRs in the molecular mechanism of retinoid growth inhibition. Moreover, the chemoprevention activity and the lack of toxicity of heteroarotinoids demonstrate their clinical potential in head and neck cancer chemoprevention. Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 2879-20-1 Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. Product Details of 22013-33-8, In a article, mentioned the application of 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, molecular formula is C8H9NO2

Protein tyrosine phosphatases (PTPs) are potential therapeutic targets for many diseases. Unfortunately, despite considerable drug discovery efforts devoted to PTPs, obtaining selective and cell permeable PTP inhibitors remains highly challenging. We describe a strategy to explore the existing drug space for previously unknown PTP inhibitory activities. This led to the discovery of cefsulodin as an inhibitor of SHP2, an oncogenic phosphatase in the PTP family. Crystal structure analysis of SHP2 interaction with cefsulodin identified sulfophenyl acetic amide (SPAA) as a novel phosphotyrosine (pTyr) mimetic. A structure-guided and SPAA fragment-based focused library approach produced several potent and selective SHP2 inhibitors. Notably, these inhibitors blocked SHP2-mediated signaling events and proliferation in several cancer cell lines. Thus, SPAA may serve as a new platform for developing chemical probes for other PTPs.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Chemical Research Letters, May 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. Which mentioned a new discovery about Recommanded Product: 4442-53-9, Recommanded Product: 4442-53-9

New sildenafil analogues containing an ether ring fused into the phenyl moiety, 6a-d and 7a-d, were efficiently synthesized from the readily available starting materials, 1a-d and 2, in five steps. Ab initio calculations indicated that introduction of a cyclic ether to the phenyl group might enhance the co-planarity of the molecule. The torsional angles were calculated to be 2-3 for the 5-membered cyclic ether derivatives, 6a, 6c, 7a, and 7c, and 12-16 for the 6-membered ones, 6b, 6d, 7b, and 7d. On the other hand, sildenafil showed the least co-planarity with the torsional angle of 23 compared with the target compounds, 6a-d and 7a-d. in the enzyme assay, however, the in vitro PDE 5 inhibitory activity was found out to be inversely related to the degree of co-planarity. In other words, the least planar sildenafil showed the highest actiivty, and the most planar 5-membered cyclic ether derivatives were least active by 100-200-fold compared with sildenafil. Our study clearly demonstrated that the open chain 2′-alkoxy group of the phenyl ring, although less effective for inducing the co-planarity, seemed to act as a much better lipophilic requirement than the cyclic alkoxy moiety. Copyright

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

New discoveries in chemical research and development in 2021. Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage. In a patent，Which mentioned a new discovery about HPLC of Formula: C9H9BrO2, HPLC of Formula: C9H9BrO2

The invention concerns compounds of formula (I) wherein: R1 and R2, identical or different, represent a saturated or unsaturated alkyl radical, branched or not and containing 1 to 7 carbon atoms; R3 to R8, identical or different, represent a hydrogen, an alkyl branched or not and containing 1 to 5 carbon atoms, an acyloxy, branched or not and containing 1 to 5 carbon atoms, a halogeno, nitro, hydroxy, acyl or alkoxy group containing 1 to 5 carbon atoms, a dialkylamino group containing 1 to 5 carbon atoms, a trifluoromethyl or trifluoro methoxyl group; Z represents an oxygen or sulphur atom or methylene; m represents an integer between 0 and 4 inclusively; n represents an integer between 2 and 7 inclusively; and their pure enantiomers and mixtures, the therapeutically acceptable mineral or organic salts of the compounds of formula (I) and their possible hydrates.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In a patent, 31127-39-6, name is 2,3-Dihydrobenzo[b][1,4]dioxine-6-carbaldehyde oxime, introducing its new discovery. category: benzodioxans

An efficient catalytic method for the synthesis of benzyl- and dibenzylamines by hydrogenating oximes and Schiffbases was developed on palladium supported high-porosity foamed ceramic block catalyst. The multiple regeneration ability of the foamed ceramic block catalyst can significantly decrease the Pd consumption as compared to the use of the conventional 10%Pd/C catalyst. Owing to a high hardness of the foamed ceramic catalyst, the reaction mixture can rapidly be removed from the reactor without using filtering devices. The structures produced by the reaction are fragments of biologically active and natural molecules. Antiproliferative properties of dibenzylamines revealed on the sea urchin embryo model suggest that these compounds can be considered as promising agents for the design of new anticancer drugs.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Research speed reading in 2021.The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. name: 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, In a article, mentioned the application of 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, molecular formula is C8H9NO2

Novel benzothiazole derivatives have been synthesised via the corresponding imino-1,2,3-dithiazoles. The cytotoxicity of some of these polyheterocyclic compounds was studied. Our results show that 2-cyano derivatives exhibit a medium in vitro antitumour activity.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 22013-33-8,Application In Synthesis of 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, In a article, mentioned the application of 22013-33-8, molecular formula is C8H9NO2

The present invention relates to a compound of Formula (I), or a pharmaceutically acceptable salt, thereof, which may be better selective Wee1 as a new generation, selective inhibitor Wee1 with respect to the existing, inhibitor Wee1 for, Kinase more safe and higher treatment index, and thus has better safety and broader application range, for treatment, of various tumors including brain tumors. (by machine translation)

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Related Products of 39270-39-8, Chemical Research Letters, May 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 39270-39-8, Name is (2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)methanol,introducing its new discovery.

Propynyl benzyl ethers having juvenile hormone-like activity which are 4-halogen, lower alkyl, lower alkoxy or propynyloxy substituted or 3,4-lower alkylenedioxy substituted and which can also be 3,5- and/or alpha-substituted, and insecticide compositions that include at least one propynyl benzyl ether and that can also include a conventional insect-poison.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Synthetic Route of 22013-33-8, Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. In a document type is Article, and a compound is mentioned, 22013-33-8, Name is 2,3-Dihydrobenzo[b][1,4]dioxin-6-amine, introducing its new discovery.

Various new compounds of thiourea were synthesised by reaction of aromatic isothiocyanates with aminoesters. The 1H-NMR and IR spectra were interpreted.

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Reference：
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem