Category: 100-19-6

Quality Control of 1-(4-Nitrophenyl)ethanone. I found the field of Chemistry very interesting. Saw the article Regiodivergent Functionalization of Isoquinoline-1,3(2H,4H)-dione Derivatives via Aerobic Umpolung published in 2021.0, Reprint Addresses Tang, L; Yang, YY (corresponding author), Guizhou Med Univ, Sch Pharm, State Key Lab Funct & Applicat Med Plants, Guizhou Prov Engn Technol Res Ctr Chem Drug R&D, Guiyang 550014, Peoples R China.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone.

A mild and green methodology for the regiodivergent functionalization of isoquinoline-1,3(2H,4H)-diones under aerobic conditions was developed. Under a catalytic amount of base, heteroatom nucleophiles went through an imide opening/ring contraction sequence to give the thermodynamic controlled product; while carbon based nucleophiles led to kinetic controlled aldol type product. Moreover, the aldol type product was transformed into the benzo[c]phenanthridine core structures under transition metal free condition, which provides an environmental benign access to this framework.

Quality Control of 1-(4-Nitrophenyl)ethanone. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Li, YX; Feng, XB; Jia, XM; Jin, H; Chen, F; Zhao, YL; Zhang, JQ; Wang, JT; Guo, B; Tang, L; Yang, YY or concate me.

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

Recently I am researching about SHORT-CHAIN DEHYDROGENASE/REDUCTASE; FLUORINATED PHOSPHONATES; ASYMMETRIC REDUCTION; KINETIC RESOLUTION; TRIFLUOROMETHYL KETONES; SUBSTITUENT CONSTANTS; BIOCATALYTIC CASCADE; CATALYZED HYDROLYSIS; AROMATIC-ALDEHYDES; BUILDING-BLOCKS, Saw an article supported by the National Science Foundation (NSF), Division of ChemistryNational Science Foundation (NSF) [CHE-1500076, CHE-1800574]; National Institutes of Health (NIH)United States Department of Health & Human ServicesNational Institutes of Health (NIH) – USA [SIG-1-510-RR-06307]; NSFNational Science Foundation (NSF) [CHE-0091975, MRI-0079750]; NIH, National Center for Research ResourcesUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) – USANIH National Center for Research Resources (NCRR) [RR016544]. Published in GEORG THIEME VERLAG KG in STUTTGART ,Authors: Kudalkar, GP; Tiwari, VK; Lee, JD; Berkowitz, DB. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone. Safety of 1-(4-Nitrophenyl)ethanone

Described is a physical organic study of the reduction of three sets of carbonyl compounds by the NADPH-dependent enzyme Clostridium acetobutylicum alcohol dehydrogenase (CaADH). Previous studies in our group have shown this enzyme to display broad substrate promiscuity, yet remarkable stereochemical fidelity, in the reduction of carbonyl compounds, including alpha-, beta- and gamma-keto esters ( d -stereochemistry), as well as alpha,alpha-difluorinated-beta-keto phosphonate esters ( l -stereochemistry). To better mechanistically characterize this promising dehydrogenase enzyme, we report here the results of a Hammett linear free-energy relationship (LFER) study across three distinct classes of carbonyl substrates; namely aryl aldehydes, aryl beta-keto esters and aryl trifluoromethyl ketones. Rates are measured by monitoring the decrease in NADPH fluorescence at 460 nm with time across a range of substrate concentrations for each member of each carbonyl compound class. The resulting v (0) versus [S] data are subjected to least-squares hyperbolic fitting to the Michaelis-Menton equation. Hammett plots of log( V (max) ) versus sigma (X) yield the following Hammett parameters: (i) for p -substituted aldehydes, rho = 0.99 +/- 0.10, rho = 0.40 +/- 0.09; two domains observed, (ii) for p -substituted beta-keto esters rho = 1.02 +/- 0.31, and (iii) for p -substituted aryl trifluoromethyl ketones rho = -0.97 +/- 0.12. The positive sign of rho indicated for the first two compound classes suggests that the hydride transfer from the nicotinamide cofactor is at least partially rate-limiting, whereas the negative sign of rho for the aryl trifluoromethyl ketone class suggests that dehydration of the ketone hydrate may be rate-limiting for this compound class. Consistent with this notion, examination of the (13) C NMR spectra for the set of p -substituted aryl trifluo-romethyl ketones in 2% aqueous DMSO reveals significant formation of the hydrate ( gem -diol) for this compound family, with compounds bearing the more electron-withdrawing groups showing greater degrees of hydration. This work also presents the first examples of the CaADH-mediated reduction of aryl trifluoromethyl ketones, and chiral HPLC analysis indicates that the parent compound alpha,alpha,alpha-trifluoroacetophenone is enzymatically reduced in 99% ee and 95% yield, providing the ( S )-stereoisomer, suggesting yet another compound class for which this enzyme displays high enantioselectivity.

Safety of 1-(4-Nitrophenyl)ethanone. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Kudalkar, GP; Tiwari, VK; Lee, JD; Berkowitz, DB or concate me.

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

I found the field of Chemistry; Engineering very interesting. Saw the article Synergism of Pt nanoparticles and iron oxide support for chemoselective hydrogenation of nitroarenes under mild conditions published in 2019.0. Category: benzodioxans, Reprint Addresses Zhang, WX; Liu, G (corresponding author), Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, 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 and low-cost supported Pt catalyst for hydrogenation of niroarenes was prepared with colloid Pt precursors and alpha-Fe2O3 as a support. The catalyst with Pt content as low as 0.2 wt% exhibits high activities, chemoselectivities and stability in the hydrogenation of nitrobenzene and a variety of niroarenes. The conversion of nitrobenzene can reach 3170 mol(conv) h(-1) mol(pt)(-1) under mild conditions (30 degrees C, 5 bar), which is much higher than that of commercial Pt/C catalyst and many reported catalysts under similar reaction conditions. The spatial separation of the active sites for H-2 dissociation and hydrogenation should be responsible for the high chemoselectivity, which decreases the contact possibility between the reducible groups of nitroarenes and Pt nanoparticles. The unique surface properties of alpha-Fe2O3 play an important role in the reaction process. It provides active sites for hydrogen spillover and reactant adsorption, and ultimately completes the hydrogenation of the nitro group on the catalyst surface. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

Category: benzodioxans. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Jing, P; Gan, T; Qi, H; Zheng, B; Chu, XF; Yu, GY; Yan, WF; Zou, YC; Zhang, WX; Liu, G or concate me.

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

An article Covalent organic framework as an efficient, metal-free, heterogeneous photocatalyst for organic transformations under visible light WOS:000467661700032 published article about GRAPHITIC CARBON NITRIDE; CO2 REDUCTION; FUNCTIONALIZATION; ORGANOCATALYSIS; CONSTRUCTION; CRYSTALLINE; CATALYSIS; OXIDATION; POLYMERS in [Li, Ziping; Zhi, Yongfeng; Liu, Xiaoming] Jilin Univ, Coll Chem, Changchun 130012, Jilin, Peoples R China; [Xia, Hong] Jilin Univ, Coll Elect Sci & Technol, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China; [Shao, Pengpeng; Feng, Xiao] Beijing Inst Technol, Sch Chem, Beijing 100081, Peoples R China; [Shi, Zhan] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China; [Li, Guosheng; Chen, Xiong] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China in 2019.0, Cited 49.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Formula: C8H7NO3

Visible-light active, heterogeneous, and organic photocatalysts exhibit a more sustainable and environmentally friendly alternative to classical metal-based catalysts. Two-dimensional covalent organic frameworks (2D-COFs) with permanent porosity, columnar It-arrays and excellent stability, that can become an excellent platform for heterogeneous photocatalysis of organic transformations. Here we report a predesigned imine-based COF with electron donor and acceptor structure. And new framework possesses large surface area, high crystallinity, outstanding stability and broad absorption range in the visible-light region as well as good photoelectric response characteristics. Importantly, it was found to be a highly effective heterogeneous photocatalyst for reductive dehalogenation of phenacyl bromide derivatives and cc-alkylation of aldehydes under irradiation of visible-light. In addition, the COF gave good recyclability and could be reused after a simple separation manipulation. The current present still reveals a great prospect for 2D-COFs as metal-free, heterogeneous photo catalysts for organic transformations.

Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Li, ZP; Zhi, YF; Shao, PP; Xia, H; Li, GS; Feng, X; Chen, X; Shi, Z; Liu, XM or concate me.

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

Recently I am researching about POLYSUBSTITUTED PYRIDINES; CONSTRUCTION; CYCLIZATION; CASCADE; OXIMES; INDOLE; REDOX; REARRANGEMENT; OXYGENATION; ROUTE, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21602187, 21871226]; Science and Technology Planning Project of Hunan Province [2019RS2039]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2020JJ3032]; Collaborative Innovation Center of New Chemical Technologies for Environmental Benignity and Efficient Resource Utilization. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Meng, HX; Xu, ZH; Qu, ZH; Huang, HW; Deng, GJ. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone. Recommanded Product: 1-(4-Nitrophenyl)ethanone

A copper(0)/PPh3-mediated cascade bisheteroannulation reaction of o-nitroalkynes with methylketoximes has been developed that provides viable access to a diverse range of pyrazo-fused pseudoindoxyl compounds. Synthetically useful functional groups including sensitive C-I bonds are compatible with this system. Mechanistic studies suggest a reaction cascade involving sequential PPh3-mediated deoxygenative cycloisomerization and copper-catalyzed [3 + 2] pyrazo-annulation.

Recommanded Product: 1-(4-Nitrophenyl)ethanone. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Meng, HX; Xu, ZH; Qu, ZH; Huang, HW; Deng, GJ or concate me.

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

Authors Xu, SD; Tang, JH; Zhou, QW; Du, J; Li, HX in AMER CHEMICAL SOC 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. Formula: C8H7NO3. 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.

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.. COA of Formula: C8H7NO3

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

Safety of 1-(4-Nitrophenyl)ethanone. 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 in [Cheong, Weng-Chon; Yang, Wenjuan; Zhang, Jian; Li, Yang; Zhao, Di; Liu, Shoujie; Wu, Konglin; Liu, Qinggang; Zhang, Chao; Wang, Dingsheng; Peng, Qing; Chen, Chen; Li, Yadong] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China; [Liu, Shoujie; Wu, Konglin] Anhui Normal Univ, Coll Chem & Mat Sci, Wuhu 241000, Peoples R China published Isolated Iron Single-Atomic Site-Catalyzed Chemoselective Transfer Hydrogenation of Nitroarenes to Arylamines in 2019.0, Cited 40.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

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.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact 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 or concate me.. Recommanded Product: 100-19-6

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

I found the field of Chemistry very interesting. Saw the article Iodine-promoted Intermolecular Dehydrogenation Diamination: Synthesis of Unsymmetrical ,-Diamido Ketones published in 2019. SDS of cas: 100-19-6, Reprint Addresses Li, YJ (corresponding author), Zhejiang Univ Technol, Dept Chem & Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310032, Zhejiang, Peoples R China.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

Iodine-promoted direct diamination of ,-unsaturated ketone to form two C-N bonds has been developed starting from chalcone and secondary amine. This reaction was performed in THF at 50 degrees C in the presence of I-2 and K2CO3. The protocol is metal-free, operationally simple and carried out under mild conditions, providing an effective new way for directing diamination reactions.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Zhang, YJ; Su, JY; Niu, WJ; Li, YJ or concate me.. SDS of cas: 100-19-6

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

SDS of cas: 100-19-6. In 2020.0 NEW J CHEM published article about X=Y-ZH SYSTEMS; POLY(ETHYLENE GLYCOL); STEREOSELECTIVE-SYNTHESIS; REGIOSELECTIVE-SYNTHESIS; CYCLOADDITION REACTIONS; POTENTIAL 1,3-DIPOLES; ANTIBACTERIAL AGENTS; MICHAEL ADDITION; DISCOVERY; LIBRARY in [Yue, Guizhou; Dou, Zhengjie; Zhou, Zexi; Zhang, Li; Feng, Juhua; Wang, Xianxiang; Rao, Hanbing] Sichuan Agr Univ, Coll Sci, Yaan 625014, Sichuan, Peoples R China; [Chen, Huabao] Sichuan Agr Univ, Coll Agr Sci, Chengdu 611130, Sichuan, Peoples R China; [Yin, Zhongqiong; Song, Xu; Liang, Xiaoxia] Sichuan Agr Univ, Coll Vet Med, Chengdu 611130, Sichuan, Peoples R China; [Lu, Cuifen] Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organochem Mat, Wuhan 430062, Peoples R China; [Lu, Cuifen] Hubei Univ, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Peoples R China in 2020.0, Cited 65.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

The rapid synthesis of novel dicyclic spiropyrrolidine was reported, using [3+2]-cycloaddition of isatin N,N ‘-cyclic azomethine imine 1,3-dipoles, generated from the condensation of substituted isatins and pyrazolidones, with chalcones in 2-5 min. The dicyclic spiropyrrolidine oxoindole was smoothly acquired in moderate to excellent yields (35-95%) with high diastereoselectivities (>20 : 1 dr).

SDS of cas: 100-19-6. Welcome to talk about 100-19-6, If you have any questions, you can contact Yue, GZ; Dou, ZJ; Zhou, ZX; Zhang, L; Feng, JH; Chen, HB; Yin, ZQ; Song, X; Liang, XX; Wang, XX; Rao, HB; Lu, CF or send Email.

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

Hu, WK; Shan, L; Ma, FD; Zhang, YL; Yang, YC; Wang, DW in [Hu, Wenkang; Yang, Yongchun; Wang, Dawei] Jiangnan Univ, Sch Chem & Mat Engn, Minist Educ, Key Lab Synthet & Biol Colloid, Wuxi 214122, Jiangsu, Peoples R China; [Shan, Liang] Jiangnan Univ, Sch Food Sci & Technol, J, Wuxi 214122, Jiangsu, Peoples R China; [Ma, Fudong] Xinjiang Agr Univ, Chem Engn Coll, Urumqi 830052, Peoples R China; [Zhang, Yilin] West Virginia Univ, C Eugene Bennett Dept Chem, Morgantown, WV 26506 USA published The synthesis of methyl triazole-4-carboxylate gold(I) complex and application on allene synthesis and alkyne hydration in 2019.0, Cited 89.0. 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.

The methyl 1H-1,2,3-triazole-4-carboxylate containing a strong electron-withdrawing group was developed and applied as a ligand for gold(I) cations. The resulting ester-triazole gold(I) complex was investigated for its efficiency in catalyzing allene synthesis and alkyne hydration, in which an excellent catalytic efficiency was observed with low catalyst loadings.

SDS of cas: 100-19-6. Welcome to talk about 100-19-6, If you have any questions, you can contact Hu, WK; Shan, L; Ma, FD; Zhang, YL; Yang, YC; Wang, DW or send Email.

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