Heterocyclic Building Blocks-benzodioxan

Sahoo, RK; Mahato, M; Jana, A; Nembenna, S in [Sahoo, Rajata Kumar; Mahato, Mamata; Nembenna, Sharanappa] Homi Bhabha Natl Inst HBNI, Natl Inst Sci Educ & Res NISER, Sch Chem Sci, Bhubaneswar 752050, Odisha, India; [Jana, Achintya] Indian Inst Sci, Undergrad Programme, Bangalore 560012, Karnataka, India published Zinc Hydride-Catalyzed Hydrofuntionalization of Ketones in 2020.0, Cited 74.0. Safety of 1-(4-Nitrophenyl)ethanone. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

Three new dimeric bis-guanidinate zinc(II) alkyl, halide, and hydride complexes [LZnEt](2) (1), [LZnI](2) (2) and [LZnH](2) (3) were prepared. Compound 3 was successfully employed for the hydrosilylation and hydroboration of a vast number of ketones. The catalytic performance of 3 in the hydroboration of acetophenone exhibits a turnover frequency, reaching up to 5800 h(-)(1), outperforming that of reported zinc hydride catalysts. Notably, both intra- and intermolecular chemoselective hydrosilylation and hydroboration reactions have been investigated.

Welcome to talk about 100-19-6, If you have any questions, you can contact Sahoo, RK; Mahato, M; Jana, A; Nembenna, S or send Email.. Safety of 1-(4-Nitrophenyl)ethanone

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

Application In Synthesis of 1-(4-Nitrophenyl)ethanone. Recently I am researching about NITRO-COMPOUNDS; SELECTIVE HYDROGENATION; REDUCTION; EFFICIENT; GOLD; DEHYDROGENATION; NANOPARTICLES; NITROBENZENE; CARBON; METAL, Saw an article supported by the National Key R&D Program of China [2016YFA0202801, 2017YFA0700101]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21872076, 21573119, 21590792, 21890383, 21866032]; Beijing Natural Science FoundationBeijing Natural Science Foundation [JQ18007]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Cheong, WC; Yang, WJ; Zhang, J; Li, Y; Zhao, D; Liu, SJ; Wu, KL; Liu, QG; Zhang, C; Wang, DS; Peng, Q; Chen, C; Li, YD. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

Selective hydrogenation of nitroarenes to arylamines is a great challenge because of the complicated mechanism and competitive hydrogenation of reducible functional groups. Isolated single-atomic site catalysts, benefitting from their uniform and well-defined catalytic sites, are promising to achieve high activity and selectivity. Herein, we prepared an isolated iron single-atomic catalyst supported on ordered mesoporous nitrogen-doped carbon (Fe-1/N-C). The as-prepared Fe-1/N-C showed excellent activity and tolerance for functional groups in the transfer hydrogenation of nitroarenes over hydrazine hydrate. Density functional theory calculations revealed that the single atomically dispersed, partially positively charged Fe atoms and the lowered energy barrier collectively contribute to the superior hydrogenation performances for nitroarenes.

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

An article High-performance polyimides based on pyridine and xanthene pendant groups; synthesis, characterization, photoactivity, thermal, antibacterial, and Cr(VI) ion adsorption properties WOS:000483154400001 published article about HEXAVALENT CHROMIUM; AROMATIC POLYIMIDES; SOLUBLE POLYIMIDES; HEAT-RESISTANT; REMOVAL; POLYAMIDES; IMIDAZOLE; BEHAVIOR; POLYMER; WATER in [Amininasab, S. Mojtaba; Esmaili, Sahereh; Shami, Zahed] Univ Kurdistan, Fac Sci, Dept Chem, Polymer Chem Res Lab, Sanandaj 6617715175, Iran in 2020.0, Cited 44.0. Recommanded Product: 100-19-6. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

A group of new polyimides (PIs) containing xanthene bulky groups and heterocyclic pyridine ring were synthesized by polycondensation reaction by using new symmetric and asymmetric diamines with available dianhydrides. The prepared diamines and PIs were characterized by Fourier transform infrared, elemental analysis, and proton nuclear magnetic resonance spectroscopy and carbon nuclear magnetic resonance spectroscopy. The PIs have desirable solubility in common aprotic solvents like dimethyl sulfoxide, N-methyl-2-pyrrolidone, dimethylacetamide, and pyridine as a less polar solvent. The PIs with inherent viscosities in the range of 0.51-0.72 dL/g were amorphous in nature, showed glass transition temperatures (T(g)s) of about 270-300 degrees C, and 10% weight loss at temperatures 384-443 degrees C. They showed fluorescence emission (quantum yield 7-12%) due to the presence of xanthene and pyridine groups in their structure. The prepared PIs showed tensile strength of 81-91 MPa with elongation at break of 19-23%. The antibacterial properties of the PIs against Gram negative and Gram positive bacteria and funguses were investigated. Also, a membrane of PI prepared by electrospinning method was used for the removal of different concentrations of Cr(VI) from aqueous solutions.

Recommanded Product: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Amininasab, SM; Esmaili, S; Shami, Z or concate me.

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

In 2020.0 ORGANOMETALLICS published article about N-HETEROCYCLIC CARBENES; RHODIUM COMPLEXES; ASYMMETRIC HYDROSILYLATION; STEREODIRECTING LIGANDS; PALLADIUM COMPLEXES; CARBONYL-COMPOUNDS; OLEFIN METATHESIS; ARYL-ALKYL; CATALYSTS; EFFICIENT in [Swamy, Chinna Ayya P.; Varenikov, Andrii; de Ruiter, Graham] Technion Israel Inst Technol, Schulich Fac Chem, IL-3200008 Haifa, Israel in 2020.0, Cited 72.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Category: benzodioxans

Herein we report the synthesis and application of a versatile class of N-heterocyclic carbene ligands based on an imidazo[1,5-a]pyridine-3-ylidine backbone that is fused to a chiral oxazoline auxiliary. The key step in the synthesis of these ligands involves the installation of the oxazoline functionality via a microwave-assisted condensation of a cyano-azolium salt with a wide variety of 2-amino alcohols. The resulting chiral bidentate NHC-oxazoline ligands form stable complexes with rhodium(I) that are efficient catalysts for the enantioselective hydrosilylation of structurally diverse ketones. The corresponding secondary alcohols are isolated in good yields (typically >90%) with good to excellent enantioselectivities (80-93% ee). The reported hydrosilylation occurs at ambient temperatures (40 degrees C), with excellent functional group tolerability. Even ketones bearing heterocyclic substituents (e.g., pyridine or thiophene) or complex organic architectures are hydrosilylated efficiently, which is discussed further in this report.

Category: benzodioxans. Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.

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

I found the field of Chemistry very interesting. Saw the article Selective TEMPO-Oxidation of Alcohols to Aldehydes in Alternative Organic Solvents published in 2020.0. Recommanded Product: 100-19-6, Reprint Addresses Groger, H (corresponding author), Bielefeld Univ, Fac Chem, Ind Organ Chem & Biotechnol, Univ Str 25, D-33615 Bielefeld, Germany.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

The TEMPO-catalyzed oxidation of alcohols to aldehydes has emerged to one of the most widely applied methodologies for such transformations. Advantages are the utilization of sodium hypochlorite, a component of household bleach, as an oxidation agent and the use of water as a co-solvent. However, a major drawback of this method is the often occurring strict limitation to use dichloromethane as an organic solvent in a biphasic reaction medium with water. Previous studies show that dichloromethane cannot easily be substituted because a decrease of selectivity or inhibition of the reaction is observed by using alternative organic solvents. Thus, up to now, only a few examples are known in which after a tedious optimization of the reaction dichloromethane could be replaced. In order to overcome the current limitations, we were interested in finding a TEMPO-oxidation method in alternative organic solvents, which is applicable for various alcohol oxidations. As a result, we found a method for N-oxyl radical-catalyzed oxidation using sodium hypochlorite as an oxidation agent in nitriles as an organic solvent component instead of dichloromethane. Besides the oxidation of aromatic primary alcohols also aliphatic primary alcohols, secondary alcohols as well as dialcohols were successfully converted when using this method, showing high selectivity towards the carbonyl compound and low amounts of the acid side-product.

Recommanded Product: 100-19-6. Welcome to talk about 100-19-6, If you have any questions, you can contact Hinzmann, A; Stricker, M; Busch, J; Glinski, S; Oike, K; Groger, H or send Email.

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

An article Interfacing Anatase with Carbon Layers for Photocatalytic Nitroarene Hydrogenation WOS:000489986400039 published article about CATALYZED ASYMMETRIC HYDROGENATION; SELECTIVE HYDROGENATION; CHEMOSELECTIVE HYDROGENATION; HIGHLY EFFICIENT; PRODUCT SELECTIVITY; ZEOLITE CRYSTALS; NANOPARTICLES; REDUCTION; PD; PALLADIUM in [Xu, Shaodan; Tang, Junhong; Zhou, Qingwei; Du, Jia; Li, Huanxuan] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, 1158,Second Ave, Hangzhou 310018, Zhejiang, Peoples R China in 2019.0, Cited 52.0. SDS of cas: 100-19-6. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

We demonstrate a method to boost the photocatalysis of titania by constructing a core-shell structure. The crucial technique is to capsulate the titania nanoparticles by a sheath of nitrogen-doped carbon (TiO2@N-AC) with a thickness at 3.5-7.5 nm, which creates an exceptional effect to accelerate the catalytic hydrogenation of substituted nitroarenes with isopropanol as the hydrogen source under ultraviolet or visible-light irradiation. In the catalytic hydrogenation of various nitroarenes with substituted groups of -Cl, -F, -C-C, -C-O, and -C=N, TiO2@N-AC exhibits high conversions and selectivities to the corresponding functionalized anilines, even outperforming the catalysts containing noble metals. Mechanism study demonstrates that the TiO2@N-AC catalyst benefits the selective adsorption of the nitro group rather than other substituted groups, which efficiently avoids the undesirable side reactions. Importantly, the catalyst is stable and exhibits constant performances in the continuous recycling tests.

SDS of cas: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Xu, SD; Tang, JH; Zhou, QW; Du, J; Li, HX or concate me.

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

An article Synthesis of cis-1,2-diol-type chiral ligands and their dioxaborinane derivatives: Application for the asymmetric transfer hydrogenation of various ketones and biological evaluation WOS:000537708200001 published article about ENANTIOSELECTIVE TRANSFER HYDROGENATION; P-BASED LIGANDS; DNA-BINDING; STRUCTURAL IDENTIFICATION; SCHIFF-BASE; ANTIBACTERIAL; BORON; COMPLEXES; ANTIOXIDANT; ACID in [Kilic, Ahmet; Balci, Tubba Ersayan] Harran Univ, Art & Sci Fac, Chem Dept, TR-63190 Sanliurfa, Turkey; [Arslan, Nevin] Sirnak Univ, Fac Agr, Dept Field Crops, TR-73000 Sirnak, Turkey; [Aydemir, Murat; Durap, Feyyaz] Dicle Univ, Sci Fac, Dept Chem, TR-21280 Diyarbakir, Turkey; [Okumu, Veysi] Univ Siirt, Fac Sci & Art, Dept Biol, TR-56100 Siirt, Turkey; [Tekin, Recep] Dicle Univ, Dept Infect Dis & Clin Microbiol, Fac Med, TR-21280 Diyarbakir, Turkey in 2020.0, Cited 69.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Product Details of 100-19-6

Two cis-1,2-diol-type chiral ligands (T-1 and T-2) and their tri-coordinated chiral dioxaborinane (T(1-2)B(1-2)) and four-coordinated chiral dioxaborinane adducts with 4-tert-butyl pyridine sustained by N -> B dative bonds (T(1-2)B(1-2)-N) were synthesized and characterized by various spectroscopic techniques such as NMR (H-1, C-13, and B-11), FT-IR and UV-Vis spectroscopy, LC-MS/MS, and elemental analysis. It was suggested that both ferrocene and trifluoromethyl groups played key roles in the catalytic and biological studies because they could tune the solubility of the chiral dioxaborinane complexes and adjust the strength of intermolecular interactions. To assess the biological activities of newly synthesized chiral dioxaborinane compounds, DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging, reducing power, antibacterial, DNA binding, and DNA cleavage activities were tested. Then, all chiral dioxaborinane complexes were investigated as catalysts for the asymmetric transfer hydrogenation of various ketones under suitable conditions. The results indicated that the chiral dioxaborinane catalysts performed well with high yields.

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

In 2019.0 J ORG CHEM published article about BOND FUNCTIONALIZATIONS; THERMOREVERSIBLE POLYMERIZATION; ARENES; AMIDATION; DERIVATIVES; CYCLIZATION; ANNULATION; BENZAMIDES; ARYLATION; COMPLEX in [Yu, Yongqi; Wu, Qianlong; Liu, Da; Hu, Liang; Yu, Lin; Tan, Ze] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China; [Zhu, Gangguo] Zhejiang Normal Univ, Dept Chem, 688 Yingbin Rd, Jinhua 321004, Zhejiang, Peoples R China in 2019.0, Cited 84.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. HPLC of Formula: C8H7NO3

A highly efficient and practical synthesis of benzofulvenes was developed via ketone-directed Cp*Co(III)-catalyzed sequential C-H activation, addition, cyclization, and dehydration cascade processes between simple aromatic ketones and alkynes. The reaction tolerates a variety of functional groups, and various benzofulvenes were efficiently synthesized in 42-92% yields.

Welcome to talk about 100-19-6, If you have any questions, you can contact Yu, YQ; Wu, QL; Liu, D; Hu, L; Yu, L; Tan, Z; Zhu, GG or send Email.. HPLC of Formula: C8H7NO3

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

Authors Kaur, R; Palta, K; Kumar, M in WILEY-V C H VERLAG GMBH published article about IN-VITRO EVALUATION; DISCOVERY; DERIVATIVES; MANAGEMENT; AGENTS in [Kaur, Ramandeep; Palta, Kezia; Kumar, Manoj] Panjab Univ, Univ Inst Pharmaceut Sci, Chandigarh 160014, India in 2019.0, Cited 34.0. HPLC of Formula: C8H7NO3. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

alpha-Glucosidase inhibition has been considered as an effective strategy for controlling the post-prandial hyperglycemia in diabetic patients. A series of novel isatin-pyrazole hybrids has been rationally designed, synthesized and characterized by different spectroscopic techniques. All of the synthesized compounds were evaluated for their alpha-glucosidase inhibitory potential using in vitro enzymatic assay. The tested compounds have exhibited potent alpha-glucosidase inhibition with IC50 values ranging from 3.26 +/- 0.25 to 32.33 +/- 1.08 mu M. Compound V7, having 3-nitro phenyl ring appended at pyrazole nucleus, has emerged as the most potent inhibitor among the series with an IC50 value of 3.26 +/- 0.25 mu M, which was approximately 146 fold more potent than the clinically used drug acarbose (IC50 = 478.07 +/- 1.53 mu M). Molecular docking studies were carried out to investigate the binding interactions of most active compounds with the active site of the enzyme. Further, in silico predictive pharmacokinetic parameters (ADME) and drug-like properties of the compounds were within the acceptable ranges. In vivo biological evaluations further supplemented the in vitro results.

Welcome to talk about 100-19-6, If you have any questions, you can contact Kaur, R; Palta, K; Kumar, M or send Email.. HPLC of Formula: C8H7NO3

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

In 2019.0 J ORG CHEM published article about 3+3 ANNULATION REACTION; ENANTIOSELECTIVE SYNTHESIS; ASYMMETRIC-SYNTHESIS; MICHAEL ADDITION; CYCLIZATION REACTIONS; EFFICIENT SYNTHESIS; SPIROPYRAZOLONES; CASCADE; CYCLOADDITION; EPOXIDATION in [Shen, Shou-Jie; Du, Xiao-Li; Zhao, Ming-Gang] Shanxi Normal Univ, Key Lab Magnet Mol, Magnet Informat Mat Minist Educ, Sch Chem & Mat Sci, Linfen 041004, Peoples R China; [Xu, Xiao-Li; Liang, Jin-Yan] Shanxi Normal Univ, Coll Life Sci, Linfen 041004, Peoples R China in 2019.0, Cited 70.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. SDS of cas: 100-19-6

The regioselective N-addition/substitution reaction between alpha-alkylidene pyrazolinones and propargyl sulfonium salts has been developed to construct functionalized allylthio-containing pyrazolones with moderate to excellent yields. alpha-Alkylidene pyrazolinones act as N-nucleophilic agents which are distinguished from reported C-nucleophilic reactions. Excellent regioselectivity, readily available starting materials, the broad range of substrates, gram-scale synthesis, and simple operation illustrate the synthetic advantages of this new reaction pathway.

SDS of cas: 100-19-6. Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.

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