Month: October 2021

SDS of cas: 100-19-6. Ye, TN; Xiao, Z; Li, J; Gong, YT; Abe, H; Niwa, Y; Sasase, M; Kitano, M; Hosono, H in [Ye, Tian-Nan; Li, Jiang; Sasase, Masato; Kitano, Masaaki; Hosono, Hideo] Tokyo Inst Technol, Mat Res Ctr Element Strategy, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan; [Xiao, Zewen] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China; [Gong, Yutong] Northwestern Polytech Univ, Int Ctr Mat Discovery, Sch Mat Sci & Engn, Xian 710072, Peoples R China; [Abe, Hitoshi; Niwa, Yasuhiro] High Energy Accelerator Res Org, KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan; [Abe, Hitoshi] Grad Univ Adv Studies, Sch High Energy Accelerator Sci, Dept Mat Struct Sci, SOKENDAI, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan published Stable single platinum atoms trapped in sub-nanometer cavities in 12CaO center dot 7Al(2)O(3) for chemoselective hydrogenation of nitroarenes in 2020.0, Cited 61.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

Single-atom catalysts (SACs) have attracted significant attention because they exhibit unique catalytic performance due to their ideal structure. However, maintaining atomically dispersed metal under high temperature, while achieving high catalytic activity remains a formidable challenge. In this work, we stabilize single platinum atoms within sub-nanometer surface cavities in well-defined 12CaO7Al(2)O(3) (C12A7) crystals through theoretical prediction and experimental process. This approach utilizes the interaction of isolated metal anions with the positively charged surface cavities of C12A7, which allows for severe reduction conditions up to 600 degrees C. The resulting catalyst is stable and highly active toward the selective hydrogenation of nitroarenes with a much higher turnover frequency (up to 25772h(-1)) than well-studied Pt-based catalysts. The high activity and selectivity result from the formation of stable trapped single Pt atoms, which leads to heterolytic cleavage of hydrogen molecules in a reaction that involves the nitro group being selectively adsorbed on C12A7 surface. Stabilize the active metal single atoms under harsh conditions is critical for the development of single atom catalysts. Here the authors report a nanoporous crystal, 12CaO7Al(2)O(3), that can firmly stabilize Pt single atoms in its surface cavities for efficient catalytic hydrogenation of nitroarenes.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Ye, TN; Xiao, Z; Li, J; Gong, YT; Abe, H; Niwa, Y; Sasase, M; Kitano, M; Hosono, H or concate me.. SDS of cas: 100-19-6

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

Category: benzodioxans. Yuan, CY; Sun, Z; Wang, YH in [Yuan, Chengyun; Wang, Yinghan] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China; [Sun, Zhen] Shanghai KaiYuLin Pharmaceut Technol Co LTD, Shanghai 201805, Peoples R China published Synthesis and characterization of a novel organo-soluble polyimide containing hydroxyl and bis-tert-butyl substituted triphenylpyridine units in 2020, Cited 47. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

A new diamine containing hydroxyl and bis-tert-butyl substituted triphenylpyridine units was synthesized and used in the synthesis of polyimides (PIs) via a one-step polymerization. The diamine and PIs were characterized by FTIR and(1)H-NMR. The aggregated structure of PIs was amorphous by wide angle X-ray diffraction test and all of them exhibited excellent solubility in most organic solvents. The bis-tert-butyl and triphenylpyridine units endowed PIs excellent thermal stability with 10% weight loss temperatures in the range 493-525 degrees C and high glass transition temperature in the range 301-344 degrees C, while the existence of hydroxyl groups provided the possibility for further modification of polymer. The PI membranes had excellent mechanical properties with tensile strength in the range 65-93 MPa. The density of PIs was lower with density in the range 1.266-1.289 g/cm(3). It was foreseeable that PIs will greatly promote the applications of heat-resistant and lightweight PI materials in the future.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Yuan, CY; Sun, Z; Wang, YH or concate me.. Category: benzodioxans

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

Recently I am researching about H ACTIVATION; POLYETHYLENE-GLYCOL; ORGANIC-SYNTHESIS; INTERNAL ALKYNES; DIRECTING GROUP; EFFICIENT SYNTHESIS; IRIDIUM COMPLEXES; O BOND; FUNCTIONALIZATION; RHODIUM, Saw an article supported by the University Grants Commission (UGC), New Delhi, IndiaUniversity Grants Commission, India [F.25-1/2014-15, F.7-227/2009]. Formula: C8H7NO3. Published in GEORG THIEME VERLAG KG in STUTTGART ,Authors: Deshmukh, DS; Bhanage, BM. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

In this work, N-Cbz hydrazone has been employed as a rarely explored directing group for the synthesis of isoquinolines by annulation with internal alkynes via C-H/ N-N activation using Ru catalyst. Additive as well as external oxidant-free rapid protocol has been established for the synthesis of isoquinolines using microwave strategy. Use of non-volatile and biodegradable PEG as a green solvent with lower catalyst loading makes the proposed protocol environmentally benign. Further, higher functional group tolerance and wide substrate scope has been observed under the stated methodology with higher yields.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Deshmukh, DS; Bhanage, BM or concate me.. Formula: C8H7NO3

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

In 2019.0 FIBER POLYM published article about OPTICAL TRANSPARENCY; SOLUBLE POLYIMIDES; PYRIDINE; PROTONATION; SOLUBILITY; DIANHYDRIDE; METHANE; UNITS in [Huang, Xiaohua; Li, Hua; Liu, Chanjuan; Zang, Limin; Zhou, Huanfu; Wei, Chun] Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Collaborat Innovat Ctr Explorat Hidden Nonferrous, Minist Educ,Sch Mat Sci & Engn, Guilin 541004, Peoples R China in 2019.0, Cited 30.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Recommanded Product: 1-(4-Nitrophenyl)ethanone

A novel diamine monomer 4-(4-diethylaminophenyl)-2,6-bis(4-aminophenyl)pyridine (APAP) was successfully synthesized, and then a series of poly(pyridine imide)s was prepared from APAP with five commercial dianhydrides: pyromellitic dianhydride (PMDA), 3,3,4,4-biphenyltetracarboxylic dianhydride (BPDA), 4,4-oxydiphthalic anhydride (ODPA), 3,3,4,4-benzophenone tetracarboxylic dianhydride (BTDA), and 4,4-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) via a two-step solution polycondensation method. The structure of APAP was characterized by FT-IR, NMR, and MS. The resulting polymers have good solubility in polar solvents, such as NMP, DMF, and DMSO. Furthermore, they exhibited outstanding thermal stability. The glass transition temperature (T-g) of polymers range from 326 to 346 degrees C, and the temperature at 5 % and 10 % weight loss in the range of 527 degrees C to 570 degrees C and 550 degrees C to 601 degrees C, respectively. Moreover, they also presented excellent hydrophobicity with contact angels in the range of 88.4 degrees to 94.0 degrees.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Huang, XH; Li, H; Liu, CJ; Zang, LM; Zhou, HF; Wei, C or concate me.. Recommanded Product: 1-(4-Nitrophenyl)ethanone

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

Authors El-sayed, HA; Assy, MG; Mohamed, AS in WILEY-V C H VERLAG GMBH published article about in [El-sayed, Hassan A.; Assy, Mohamed G.; Mohamed, Asaad S.] Zagazig Univ, Fac Sci, Dept Chem, Zagazig 44519, Egypt in 2019.0, Cited 15.0. Category: benzodioxans. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

An efficient and facile approach has been described for the synthesis of a new series of 1-amino-2-oxo-nicotinonitriles and their sulfonamides under microwave and ultrasonic irradiation. The desired compounds 4 a-l were obtained via condensation of p-chlorobenzaldehyde, aryl or heteroaryl methyl ketone and cyanoacetohydrazide in the presence of catalytic piperidine under three synthetic methodologies (namely, conventional method, ultrasonic and microwave irradiation), the best results (short reaction times, pure products, high yield) were obtained by ultrasonic irradiation. Sulfonamides 5 a-f resulted via reaction of amines 4 a-e and 4 j with benzene sulfonyl chloride in the presence of pyridine. The synthesized compounds give no significant results when investigated against Gm (+ve) and Gm (-ve) bacteria, and fungi strains.

Category: benzodioxans. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact El-sayed, HA; Assy, MG; Mohamed, AS or concate me.

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

Category: benzodioxans. I found the field of Chemistry very interesting. Saw the article Highly Regioselective Synthesis of Multisubstituted Pyrroles via Ag-Catalyzed [4+1C](insert) Cascade published in 2020.0, Reprint Addresses Lin, J; Shao, ZH; Jin, Y (corresponding author), Yunnan Univ, Key Lab Med Nat Resource, State Key Lab Conservat & Utilizat Bioresources Y, Sch Chem Sci & Technol,Minist Educ & Yunnan Prov, Kunming 650091, Yunnan, Peoples R China.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone.

An efficient [4+1C](insert) approach to the coupling of enaminones with donor/acceptor or donor/donor carbenes by the AgOTf-catalyzed C-C bond carbenoid formal insertion/cyclization/[1,5]-shift cascade reaction was successfully developed, providing distinct chemo- and regioselective multisubstituted pyrroles. The plausible reaction mechanism involves two catalytic cycles: in the first one, silver ions regioselectively catalyze the C-C bond formal insertion reaction; in the second one, silver ions chemo- and regioselectively control the cyclization and [1,5]-shift reactions. This method not only provides convenience and applies atom economy in the synthesis of multisubstituted pyrroles but also presents an entry point for further pyrrole diversification via facile modification of resulting 4H-pyrrole products, as displayed by a short formal synthesis of the natural product lamellarin L.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Luo, KX; Mao, S; He, K; Yu, XL; Pan, JH; Lin, J; Shao, ZH; Jin, Y or concate me.. Category: benzodioxans

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

Category: benzodioxans. Authors Xu, DP; Xiong, ML; Kazemnejadi, M in ROYAL SOC CHEMISTRY published article about in [Xu, DaPeng] Gansu Ind Polytech Coll, Inst Chem Technol, TianShui 741000, Peoples R China; [Xiong, Meilu] Gansu Hlth Vocat Coll, Publ Fdn Coll, Lanzhou 730207, Peoples R China; [Kazemnejadi, Milad] Univ Birjand, Fac Sci, Dept Chem, Birjand, Iran in 2021.0, Cited 55.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

A new, versatile, and green methodology has been developed for the efficient NaBH4-reduction of nitroarenes as well as the domino/reduction MCR preparation of 1-substituted-1H-1,2,3,4-tetrazoles using Pd(ii)-polysalophen coated magnetite NPs as an efficient heterogeneous magnetically recyclable nanocatalyst. Polysalophen was firstly prepared based on a triazine framework with a high degree of polymerization, then coordinated to Pd ions and, finally, the resulting hybrid was immobilized on magnetite NPs. The catalyst was characterized by various instrumental and analytical methods, including GPC, DLS, N-2 adsorption-desorption, TGA, VSM, TEM, HRTEM, EDX, XPS, XRD, and ICP analyses. The catalyst possesses dual-functionality including the reduction of nitroarenes and the construction of tetrazole rings all in one step via a domino protocol. High to excellent yields were obtained for both nitro reduction and the direct preparation of 1-substituted-1H-1,2,3,4-tetrazoles from nitro compounds. Insight into the mechanism was conducted by XPS in situ as well as DLS in situ along with several control experiments. Recyclability of the catalyst was studied for 6 consecutive runs along with metal leaching measurements in each cycle.

Category: benzodioxans. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Xu, DP; Xiong, ML; Kazemnejadi, M or concate me.

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

Authors Haldys, K; Goldeman, W; Anger-Gora, N; Rossowska, J; Latajka, R in MDPI published article about in [Haldys, Katarzyna; Latajka, Rafal] Wroclaw Univ Sci & Technol, Dept Bioorgan Chem, PL-50370 Wroclaw, Poland; [Goldeman, Waldemar] Wroclaw Univ Sci & Technol, Dept Organ & Med Chem, PL-50370 Wroclaw, Poland; [Anger-Gora, Natalia; Rossowska, Joanna] Polish Acad Sci, Ludwik Hirszfeld Inst Immunol & Expt Therapy, PL-53114 Wroclaw, Poland in 2021.0, Cited 58.0. 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

A set of 12 monosubstituted acetophenone thiosemicarbazone derivatives (TSCs) were synthesized and their inhibitory properties toward tyrosinase activity were tested. Moreover, their ability to inhibit melanogenesis in the B16F10 murine melanoma cell line was studied. In order to investigate the nature of interactions between the enzyme and the inhibitors, molecular docking to the active site was performed. TSCs 5, 6, 8, and 9 revealed a half maximal inhibitory concentration (IC50) below 1 mu M. Compound 6 turned out to be the most potent tyrosinase inhibitor. All investigated compounds showed reversible inhibition of competitive or mixed type. The para-substituted TSCs had higher affinity for the enzyme as compared to their ortho- and meta-analogues. All investigated compounds inhibited melanin production in B16F10 cells at the micromolar level. Molecular docking showed that the sulfur atom of the thiourea moiety penetrates the active site and interacts with copper ions. The above outcomes might be helpful in the design of new tyrosinase inhibitors in the food and cosmetic industries.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Haldys, K; Goldeman, W; Anger-Gora, N; Rossowska, J; Latajka, R or concate me.. Safety of 1-(4-Nitrophenyl)ethanone

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

Formula: C8H7NO3. In 2019.0 APPL ORGANOMET CHEM published article about SELECTIVE HYDROGENATION; PALLADIUM NANOPARTICLES; HETEROGENEOUS CATALYST; HIGHLY EFFICIENT; CORE-SHELL; REDUCTION; NANOSHEETS; GRAPHENE; SPHERES; LIGNIN in [Sadjadi, Samahe] Iran Polymer & Petrochem Inst, Fac Petrochem, Gas Convers Dept, 15Km Tehran Karaj Highway, Tehran 14975112, Iran; [Heravi, Majid M.] Alzahra Univ, Sch Sci, Dept Chem, POB 1993891176, Tehran, Iran in 2019.0, Cited 48.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

Hollow magnetic nanoparticles (MNPs) with tetrahedral morphology were synthesized and then covered by a shell prepared by coating with melamine-formaldehyde followed by the introduction of glucose-derived carbon. Subsequently, Pd nanoparticles were immobilized and the core-shell nanocomposite was carbonized. The obtained magnetic catalyst was successfully applied for the hydrogenation of nitroarenes in aqueous media. To investigate the effects of the morphology of MNPs, the nature of carbon shell, and the order of incorporation of Pd nanoparticles, several control catalysts, including the MNPs with different morphologies (disc-like and cylinder); MNPs coated with different shells (sole glucose-derived carbon or melamine-formaldehyde carbon shell); and a nanocomposite, in which Pd was immobilized after carbonization, were prepared and examined as catalyst for the model reaction. To justify the observed different catalytic activities of the catalysts, their Pd loadings, leaching, and specific surface areas were compared. The results confirmed that tetrahedral MNPs coated with porous N-rich carbon shell exhibited the best catalytic activity. The high catalytic activity of this catalyst was attributed to its high surface area and the interaction of N-rich shell with Pd nanoparticles that led to the higher Pd loading and suppressed Pd leaching.

Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Sadjadi, S; Heravi, MM or concate me.

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

Name: 1-(4-Nitrophenyl)ethanone. In 2021.0 ORG LETT published article about TRANSITION-METAL-FREE; STEVENS REARRANGEMENT; CARBON-CARBON; BENZYNE; GENERATION; MULTIFUNCTIONALIZATION; CONSTRUCTION; METHODOLOGY; STRATEGIES; REACTIVITY in [Gaykar, Rahul N.; George, Malini; Guin, Avishek; Bhattacharjee, Subrata; Biju, Akkattu T.] Indian Inst Sci, Dept Organ Chem, Bangalore 560012, Karnataka, India in 2021.0, Cited 79.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

An oxa-[2,3] sigmatropic rearrangement involving arynes is reported featuring the umpolung of ketones, where the C = O bond polarity is reversed. The in situ-generated sulfur ylides from beta-keto thioethers and arynes undergo efficient rearrangement allowing the facile and robust synthesis of functionalized enol ethers in high yields and excellent functional group compatibility. Preliminary mechanistic studies rule out the possibility of Pummerer-type rearrangement operating in this case.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Gaykar, RN; George, M; Guin, A; Bhattacharjee, S; Biju, AT or concate me.. Name: 1-(4-Nitrophenyl)ethanone

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