Month: November 2021

An article Highly Regioselective Synthesis of Multisubstituted Pyrroles via Ag-Catalyzed [4+1C](insert) Cascade WOS:000526394500024 published article about C-H FUNCTIONALIZATION; CARBENE MIGRATORY INSERTION; ASYMMETRIC RING-EXPANSION; N-TOSYLHYDRAZONES; SUBSTITUTED PYRROLES; ORGANIC-SYNTHESIS; DIAZO-COMPOUNDS; BOND FORMATION; ARYL IODIDES; CONSTRUCTION in [Luo, Kaixiu; He, Kun; Yu, Xianglin; Pan, Junhong; Lin, Jun; Shao, Zhihui; Jin, Yi] 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; [Mao, Shuai] Xi An Jiao Tong Univ, Sch Pharm, Dept Med Chem, Xian 710061, Peoples R China in 2020.0, Cited 98.0. 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

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.

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.. SDS of cas: 100-19-6

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

Authors Yu, HB; Wu, CZ; Wang, SW; Li, T; Yin, HF in AMER CHEMICAL SOC published article about CHEMOSELECTIVE HYDROGENATION; CATALYTIC-SYSTEM; CARBON; FE; NITROBENZENE; EFFICIENCY; OXIDATION; ANILINE; SIZE; THIN in [Wu, Chunzheng] Zhejiang A&F Univ, Coll Sci, Hangzhou 311300, Zhejiang, Peoples R China; [Yu, Hongbo; Wang, Shiwei; Li, Tong; Yin, Hongfeng] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China in 2021.0, Cited 46.0. Formula: C8H7NO3. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

Modification of active metals with metal oxide modifiers has attracted considerable attention in heterogeneous catalysis due to their synergistic effect. However, a controllable synthesis of highly reactive and stable metal-metal oxide hybrid nanocatalysts is difficult. To solve this problem, presynthesized IrM (M = Fe, Co, and Ni) bimetallic nanoparticles were initially confined in the mesopores of SBA-15 and were then in situ transformed to Ir-MOx hybrids. The obtained Ir-MOx/SBA-15 nanocatalysts show superior activity and selectivity in the hydrogenation of substituted nitroaromatics to corresponding aromatic amines compared to Ir/SBA-15. Among these Ir-based catalysts, Ir-FeOx/SBA-15 exhibits the highest activity and selectivity and has a wider substrate scope due to the interaction between Ir and FeOx. Therefore, our research provides a way to design reactive and stable hydrogenation catalysts.

Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Yu, HB; Wu, CZ; Wang, SW; Li, T; Yin, HF or concate me.

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

An article Synthesis and in vitro study of new coumarin derivatives linked to nicotinonitrile moieties as potential acetylcholinesterase inhibitors WOS:000567473700001 published article about ALZHEIMERS-DISEASE; BIOLOGICAL EVALUATION; DESIGN; CHALCONES; DRUG in [Mekky, Ahmed E. M.; Sanad, Sherif M. H.] Cairo Univ, Fac Sci, Chem Dept, Giza 12613, Egypt in 2020.0, Cited 56.0. Recommanded Product: 1-(4-Nitrophenyl)ethanone. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

The appropriate pyridine-2(1H)-thiones were reacted with an equivalent amount of 5-(chloromethyl)-2-hydroxybenzaldehyde in ethanol in the presence of potassium hydroxide to give the corresponding 2-hydroxybenzaldehyde derivatives in excellent yields. The latter derivatives were taken as key synthons for the preparation of the target hybrids. Therefore, 2-hydroxybenzaldehydes were reacted with benzoylglycine in acetic anhydride in the presence of fused sodium acetate at 100 degrees C for 6 hours to afford a new series of nicotinonitrile-coumarin hybrids. The in vitro acetylcholinesterase inhibitory activities were estimated for the new coumarins. The results were expressed as the inhibition percentage of the tested hybrids at concentration of 25 nM, compared to donepezil as a reference (inhibition percentage of 70.5). Coumarin hybrids linked to 6-(4-nitrophenyl) or 6-(4-chlorophenyl)-4-phenylnicotinonitrile exhibited more effective inhibitory activities than donepezil with inhibition percentages of 94.1 and 72.3, respectively. The new coumarins were tested for their free radical-scavenging capabilities against DPPH. Furthermore, some new coumarins were tested for in vitro cytotoxic activity against each MCF-10A, MCF-7, Caco2, and HEPG2. The new hybrids showed cytotoxicity in micromolar range (IC(50)of 3.5-13.9 mu M) against all tested cell lines. These results clearly demonstrated that the hybrids being tested are not cytotoxic at the concentration required to inhibit acetylcholinesterase effectively.

Welcome to talk about 100-19-6, If you have any questions, you can contact Mekky, AEM; Sanad, SMH or send Email.. Recommanded Product: 1-(4-Nitrophenyl)ethanone

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

HPLC of Formula: C8H7NO3. In 2019.0 ORG LETT published article about NUCLEAR-MAGNETIC-RESONANCE; SYN-ANTI ISOMERIZATION; OXIME ETHERS; PHOTOISOMERIZATION; MECHANISM; ESTERS; SHIFT; MILD in [Ball-Jones, Matthew P.; Tyler, Jasper; Mora-Rado, Helena; Harrity, Joseph P. A.] Univ Sheffield, Dept Chem, Brook Hill, Sheffield S3 7HF, S Yorkshire, England; [Mora-Rado, Helena; Czechtizky, Werngard; Mendez, Maria] Sanofi Aventis Deutschland GmbH, R&D, Ind Pk Hochst G838, D-65926 Frankfurt, Germany; [Czechtizky, Werngard] AstraZeneca, Resp Inflammat Autoimmun IMED Biotech Unit, S-43186 Gothenburg, Sweden in 2019.0, Cited 28.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

The greater geometric lability of hydrazones compared to that of oxime ethers is used as a basis to overcome the reluctance of Z-oxime ether azatrienes to undergo electrocyclization toward the synthesis of borylated (heteroaromatic) pyridines and ring-fused analogues. Such hydrazones now allow access to previously inaccessible tri- and tetrasubstituted 3-borylpyridines in high yields.

Welcome to talk about 100-19-6, If you have any questions, you can contact Ball-Jones, MP; Tyler, J; Mora-Rado, H; Czechtizky, W; Mendez, M; Harrity, JPA or send Email.. HPLC of Formula: C8H7NO3

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

An article Highly Enantioselective Transfer Hydrogenation of Prochiral Ketones Using Ru(II)-Chitosan Catalyst in Aqueous Media WOS:000459734900023 published article about ASYMMETRIC TRANSFER HYDROGENATION; HETEROGENEOUS CATALYSTS; PALLADIUM-CHITOSAN; CHIRAL LIGANDS; COMPLEXES; ALCOHOLS; WATER; DERIVATIVES; IRIDIUM; CHITIN in [Szollosi, Gyoergy] Univ Szeged, MTA SZTE Stereochem Res Grp, Dom Ter 8, H-6720 Szeged, Hungary; [Szollosi, Gyoergy] Univ Szeged, Interdisciplinary Excellence Ctr, Inst Pharmaceut Chem, Eotvos U 6, H-6720 Szeged, Hungary; [Kolcsar, Vanessza Judit] Univ Szeged, Dept Organ Chem, Dom Ter 8, H-6720 Szeged, Hungary in 2019.0, Cited 118.0. Category: benzodioxans. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

Unprecedentedly high enantioselectivities are obtained in the transfer hydrogenation of prochiral ketones catalyzed by a Ru complex formed insitu with chitosan chiral ligand. This biocompatible, biodegradable chiral polymer obtained from the natural chitin afforded good, up to 86% enantioselectivities, in the aqueous-phase transfer hydrogenation of acetophenone derivatives using HCOONa as hydrogen donor. Cyclic ketones were transformed in even higher, over 90%, enantioselectivities, whereas further increase, up to 97%, was obtained in the transfer hydrogenations of heterocyclic ketones. The chiral catalyst precursor prepared ex situ was examined by scanning electron microscopy, FT-mid- and -far-IR spectroscopy. The structure of the insitu formed catalyst was investigated by H-1 NMR spectroscopy and using various chitosan derivatives. It was shown that a Ru pre-catalyst is formed by coordination of the biopolymer to the metal by amino groups. This precursor is transformed in water insoluble Ru-hydride complex following hydrogen donor addition. The practical value of the developed method was verified by preparing over twenty chiral alcohols in good yields and optical purities. The catalyst was applied for obtaining optically pure chiral alcohols at gram scale following a single crystallization.

Category: benzodioxans. Welcome to talk about 100-19-6, If you have any questions, you can contact Szollosi, G; Kolcsar, VJ or send Email.

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

Authors Nguyen, LHT; Nguyen, TTT; Dang, MHD; Tran, PH; Doan, TLH in ELSEVIER published article about METAL-ORGANIC FRAMEWORKS; HETEROGENEOUS CATALYST; BRONSTED ACIDITY; BENZOXAZOLES; EFFICIENT; ZR; CHEMISTRY; SCAFFOLD; CASCADE in [Linh Ho Thuy Nguyen; Trang Thi Thu Nguyen; Minh-Huy Dinh Dang; Tan Le Hoang Doan] VNU HCM, Ctr Innovat Mat & Architectures INOMAR, Ho Chi Minh City 721337, Vietnam; [Linh Ho Thuy Nguyen; Phuong Hoang Tran] VNU HCM, Fac Chem, Univ Sci, Ho Chi Minh City 721337, Vietnam; [Linh Ho Thuy Nguyen; Trang Thi Thu Nguyen; Minh-Huy Dinh Dang; Phuong Hoang Tran; Tan Le Hoang Doan] Ho Chi Minh City VNU HCM, Vietnam Natl Univ, Ho Chi Minh City 721337, Vietnam in 2021.0, Cited 58.0. Category: benzodioxans. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

Use of green chemistry and alternative strategies has been explored to prepare diverse organic derivatives. The combination between heterogeneous catalyst, environmentally benign reaction and high-yielding methods is gaining momentum. Herein, a defective 6-connected Hf-MOF, named Hf-BTC, was efficiently synthesized and characterized for the heterogeneous catalysis under microwave irradiation. The MOF features including structural defect, porosity, acidity, and stability was analyzed by powder X-ray diffraction, N-2 sorption isotherms, acid-base titration, and thermal gravimetric analysis. In the catalytic studies, the Brunsted-Lewis dual acidic HfBTC was efficiently applied for the synthesis of the heterocyclic compounds via the microwave-assisted cycloaddition and condensation reactions. The reactions proceeded smoothly in the presence of the Hf-MOF with a broad scope of substrates provided the expected products in high to excellent yields (up to 99 %) for few minutes and the catalyst could be easily recycle over many consecutive reactions without loss of its reactivity and structure.

Category: benzodioxans. Welcome to talk about 100-19-6, If you have any questions, you can contact Nguyen, LHT; Nguyen, TTT; Dang, MHD; Tran, PH; Doan, TLH or send Email.

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

An article Acid-activated clay as heterogeneous and reusable catalyst for the synthesis of bioactive cyclic ketal derivatives WOS:000466785800006 published article about ANTI-HIV ACTIVITY; CARBONYL-COMPOUNDS; EFFICIENT SYNTHESIS; CHEMOSELECTIVE ACETALIZATION; MONTMORILLONITE CLAY; ANTIFUNGAL ACTIVITY; IONIC LIQUID; KETONES; ALDEHYDES; ACETALS in [Hagui, Wided; Amri, Sondes; Khabbouchi, Mohamed; Srasra, Ezzeddine; Besbes, Neji] Natl Ctr Res Mat Sci, Lab Composite Mat & Clay Minerals, Grp Green & Appl Organ Chem, Technopole Borj Cedria, Soliman, Tunisia; [Hagui, Wided; Amri, Sondes; Khabbouchi, Mohamed] Tunis El Manar Univ, Fac Sci Tunis, El Manar Tunis, Tunisia; [Essid, Rym; Feris, Nadia; Tabbene, Olfa; Limam, Ferid] Biotechnol Ctr Borj Cedria, Lab Bioact Subst, Technopole Borj Cedria, Soliman, Tunisia in 2019.0, Cited 78.0. Product Details of 100-19-6. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

A new heterogeneous acid catalyst based on a natural resource, Tunisian clay (Clay-H0.5), has been prepared and characterized by FT-IR, FE-SEM, and powder X-ray diffraction (XRD), as well as chemical composition, cation exchange capacity, specific surface area, and pore volume. Acid treatment for 0.5 h enlarged the surface area from 78.24 to 186.10 m(2)/g and pore volume (PV) from 0.186 to 0.281 cm(3)/g. The catalytic activity of this material was investigated in ketalization reaction under mild solvent-free conditions. This achieved up to 92% isolated yield for only 10 wt.% of the catalyst. This environmentally friendly method has advantages such as simple work-up procedure, avoidance of organic solvents, and good performance in ketalization reactions. Importantly, the Clay-H0.5 catalyst showed good recyclability where insignificant activity loss was exhibited even after six runs. Synthesized cyclic ketals were tested for their possible antileishmanial and antibacterial activities as well as antifungal activity. Biological screening showed that compound 11 had important antileishmanial activity against both L. major and L. infantum, while compound 14 also had significant antibacterial activity against four gram-positive and two gram-negative bacteria, and antifungal activity against Candida albicans, with minimal inhibitory concentration values ranging from 15.62 mu g/mL to 125 mu g/mL.

Product Details of 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

Safety of 1-(4-Nitrophenyl)ethanone. In 2019.0 J ORG CHEM published article about C-H ACTIVATION; 3+2 ANNULATION; CATALYZED SYNTHESIS; ACCESS; KETIMINES; FUNCTIONALIZATION; CYCLIZATION; VERSATILE; SYNTHONS; INDOLES in [Liu, Zhongsu; Zhang, Wenjing; Guo, Shan; Zhu, Jin] Nanjing Univ, Nanjing Natl Lab Microstruct, State Key Lab Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210023, Jiangsu, Peoples R China in 2019.0, Cited 71.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

Transition-metal-catalyzed C-H activation synthesis of heterocyclic spiro[4,4]nonanes has persistently witnessed the use of additional stoichiometric transition-metal oxidant when employing C=C bond as the Spiro ring closure site. Herein, we have addressed the issue by reporting a redox-neutral strategy for spiro[indene-1,4′-oxa-zolidinones] synthesis via Rh(III)-catalyzed coupling of 4-phenyl-1,3-oxazol-2(3H)-ones with alkynes. The synthesis features a broad substrate scope and high regiospecificity.

Welcome to talk about 100-19-6, If you have any questions, you can contact Liu, ZS; Zhang, WJ; Guo, S; Zhu, J or send Email.. Safety of 1-(4-Nitrophenyl)ethanone

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

An article Composite of beta-cyclodextrin and bentonite clay: a promising support for Pd immobilization and developing a catalyst for hydrogenation of nitroarenes under mild reaction condition WOS:000607845700009 published article about PALLADIUM NANOPARTICLES; SELECTIVE HYDROGENATION; HETEROGENEOUS CATALYST; COUPLING REACTIONS; NITRO-COMPOUNDS; EFFICIENT; HALLOYSITE; OXIDE; NANOCOMPOSITE; NANOCATALYST in [Sadjadi, Samahe; Koohestani, Fatemeh] Iran Polymer & Petrochem Inst, Fac Petrochem, Gas Convers Dept, Tehran 14975112, Iran in 2021.0, Cited 51.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. HPLC of Formula: C8H7NO3

In attempt to take advantages of naturally occurring compounds for the catalysis, a novel composite composed of beta-cyclodextrin, dendrimer and bentonite clay is fabricated and utilized as a support for the stabilization of Pd nanoparticles. To prepare the support, bentonite is amino functionalized and then successively reacted with 2,4,6-trichloro-1,3,5-triazine and ethylenediamine to furnish a dendrimer of generation II on bentonite. Afterwards, the terminal functionalities of the dendrimer were adorned with cyclodextrin. Bentonite played role in the hetemgenation of the catalyst and improvement of the stability of the composite while, cyclodextrins served as molecular shuttles and capping agent for the as-prepared Pd nanoparticles. Dendrimer with multi nitrogen atoms, on the other hand, improved Pd anchoring through electrostatic interactions. The catalyst was applied for the hydrogenation of nitmarenes under mild reaction condition in aqueous media in a selective manner. Notably, the catalyst could be recovered and reused repeatedly.

Welcome to talk about 100-19-6, If you have any questions, you can contact Sadjadi, S; Koohestani, F or send Email.. HPLC of Formula: C8H7NO3

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

An article Organocatalytic Enantioselective Selenosulfonylation of a C-C Double Bond To Form Two Stereogenic Centers in an Aqueous Medium WOS:000473116200048 published article about ONE-POT SYNTHESIS; ASYMMETRIC-SYNTHESIS; DERIVATIVES; WATER; ORGANOSELENIUM; DISELENIDES; SULFONES; KETONES; ACID in [Chen, Zhili; Hu, Fangli; Huang, Shengli; Zhao, Zhengxing; Qin, Wenling] Chongqing Univ, Chongqing Key Lab Nat Prod Synth & Drug Res, Sch Pharmaceut Sci, Chongqing 401331, Peoples R China; [Huang, Shengli] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 401331, Peoples R China; [Mao, Hui] Jinhua Polytech, Pharmaceut & Mat Engn Sch, Jinhua 321000, Zhejiang, Peoples R China in 2019.0, Cited 43.0. 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

Organocatalytic selenosulfonylation of the C-C double bond of alpha,beta-unsaturated ketones to construct two contiguous stereogenic centers in an aqueous medium was described. A series of alpha-selenyl and beta-sulfonyl ketones with various functional groups were synthesized in good yields and enantioselectivities with saturated NaCl solution as the solvent. In addition, this protocol had been successfully scaled up to a decagram scale via a simple workup procedure.

Welcome to talk about 100-19-6, If you have any questions, you can contact Chen, ZL; Hu, FL; Huang, SL; Zhao, ZX; Mao, H; Qin, WL or send Email.. SDS of cas: 100-19-6

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