Tag: M.W=150-200

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

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

Product Details of 100-19-6. In 2020.0 ORG LETT published article about GOLD NANOPARTICLES; PHOTOCATALYTIC HYDROGENATION; COPPER; PHOTOCHEMISTRY; NITROAROMATICS; EFFICIENT; NITROSOBENZENE; DEHALOGENATION; PHOTOREDUCTION; NITROBENZENE in [Kallitsakis, Michael G.; Ioannou, Dimitris I.; Lykakis, Ioannis N.] Aristotle Univ Thessaloniki, Dept Chem, Thessaloniki 54124, Greece; [Terzidis, Michael A.] Int Hellen Univ, Dept Nutr Sci & Dietet, Thessaloniki 57400, Greece; [Kostakis, George E.] Univ Sussex, Sch Life Sci, Dept Chem, Brighton BN1 9QJ, E Sussex, England in 2020.0, Cited 63.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

We report the selective photoinduced reduction of nitroarenes to N-arylhydroxylamines. The present methodology facilitates this transformation in the absence of catalyst or additives and uses only light and methylhydrazine. This noncatalytic photoinduced transformation proceeds with a broad scope, excellent functional-group tolerance, and high yields. The potential of this protocol reflects on the selective and straightforward conversion of two general antibiotics, azomycin and chloramphenicol, to the bioactive hydroxylamine species.

Product Details of 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Kallitsakis, MG; Ioannou, DI; Terzidis, MA; Kostakis, GE; Lykakis, IN or concate me.

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

An article Access to Sulfides through Free Radical Reaction of Vinyl Halides with Thiols WOS:000456244000024 published article about CROSS-COUPLING REACTIONS; ALKENYL SULFIDES; C-S; HYDROTHIOLATION; PALLADIUM; EFFICIENT; CATALYST; KETONES; ALKYNES; LIGAND in [Shi, Zi-Fa; Xu, Li-Ning; Chen, Jie; Luo, Hui-Xing; Zhang, Juntao; Cao, Xiao-Ping] Lanzhou Univ, State Key Lab Appl Organ Chem, 222 Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China; [Shi, Zi-Fa; Xu, Li-Ning; Chen, Jie; Luo, Hui-Xing; Zhang, Juntao; Cao, Xiao-Ping] Lanzhou Univ, Coll Chem & Chem Engn, 222 Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China in 2019.0, Cited 56.0. Formula: C8H7NO3. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

An efficient radical-mediated carbon-sulfur bond formation reaction of vinyl halides with thiols has been developed. This reaction tolerated vinyl chloride substrates, which are barely tolerated in metal-catalyzed reactions, providing vinyl sulfide products. When vinyl iodides were used as substrates, the reactions were regulated by the solvents, yielding vinyl sulfide products in protic solvents (methanol) and alkyl sulfides in aprotic solvents (toluene).

Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Shi, ZF; Xu, LN; Chen, J; Luo, HX; Zhang, JT; Cao, XP or concate me.

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

An article Three-component synthesis of 1,4-benzothiazines via iodide-catalyzed aerobic C-H sulfuration with elemental sulfur WOS:000532260100003 published article about CONTROLLED SELECTIVE SYNTHESIS; TRISULFUR RADICAL-ANION; S BOND FORMATION; MOLECULAR-OXYGEN; FACILE SYNTHESIS; DERIVATIVES; THIAZOLES; FUNCTIONALIZATION; OXIDATION; INDOLES in [Jiang, Jingjing; Tuo, Xiaotong; Fu, Zhuquan; Huang, Huawen; Deng, Guo-Jun] Xiangtan Univ, Coll Chem, Key Lab Green Organ Synth & Applicat Hunan Prov, Key Lab Environm Friendly Chem & Applicat,Minist, Xiangtan 411105, Peoples R China in 2020, Cited 77. 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

Herein, iodide-catalyzed aerobic synthesis of 1,4-benzothiazines via functionalization of multiple C-H bonds with elemental sulfur is described. Beyond the well-established thiazole formation from elemental sulfur, this method provides the first access to the corresponding six-membered N,S-heterocyclic products via direct functionalization of multiple C-H bonds. Hence, 1,4-benzothiazine products were generated in satisfactory yields with a range of compatible functionalities.

Product Details of 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Jiang, JJ; Tuo, XT; Fu, ZQ; Huang, HW; Deng, GJ or concate me.

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

In 2021.0 ORG LETT published article about CATALYZED DIRECT ARYLATION; CROSS-COUPLING REACTIONS; CYCLIC ENAMIDES; BONDS; ALKYLATION; INDOLES; SILICON; TRIFLUOROMETHYLATION; ACTIVATION; ACYLATION in [Li, Xiaolan; Sun, Kai; Shen, Wenjuan; Zhang, Yong; Luo, Xuzhong; Luo, Haiqing] Gannan Normal Univ, Dept Chem & Chem Engn, Ganzhou 341000, Peoples R China; [Lu, Ming-Zhu] Huaiyin Normal Univ, Sch Chem & Chem Engn, Jiangsu Key Lab Chem Low Dimens Mat, Huaian 223300, Peoples R China in 2021.0, Cited 66.0. 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 stereoselective beta-C(sp(2))H arylation of various acyclic enamides with arylsilanes via Rh(III)-catalyzed cross-coupling reaction was illustrated. The methodology was characterized by extraordinary efficacy and stereoselectivity, a wide scope of substrates, good functional group tolerance, and the adoption of environmentally friendly arylsilanes. The utility of this present method was evidenced by the gram-scale synthesis and further elaboration of the product. In addition, Rh(III)-catalyzed C-H activation is considered to be the critical step in the reaction mechanism.

SDS of cas: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Li, XL; Sun, K; Shen, WJ; Zhang, Y; Lu, MZ; Luo, XZ; Luo, HQ or concate me.

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

In 2019.0 ACS OMEGA published article about OXYGEN-REDUCTION; ELECTROCHEMICAL IMMUNOSENSOR; CATALYTIC-ACTIVITY; GREEN SYNTHESIS; NANOPARTICLES; SEGREGATION; ELECTROCATALYSTS; BIOSYNTHESIS; OXIDATION; KINETICS in [Liu, Miaomiao; Zhao, Shuangliang] East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, 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. Safety of 1-(4-Nitrophenyl)ethanone

Bimetallic nanocatalysts, with efficient and controllable catalytic performance, have a promising application in chemical production. In this study, surface Pt-rich bimetallic AuPt nanoparticles with different Pt/Au ratios were prepared and tested in selective hydrogenation reactions of substituted nitroaromatics. Au nanoparticles were first prepared with n-butyllithium as a rapid reducer, which were further used as seeds in the slow growth process of Pt atoms. Because of the employed sequential reduction method and the following atom diffusion, surface Pt-rich bimetallic AuPt nanoparticles were obtained. Compared with the uniform AuPt alloy nanocatalysts synthesized by the co-reduction method with n-butyllithium as the reducer and monometallic Pt nanocatalysts, the obtained surface Pt-rich AuPt bimetallic nanocatalysts presented an enhanced catalytic selectivity or activity. The performance enhancement is assigned to the optimized Au/Pt interaction in the surface Pt-rich bimetallic nanostructures. This work demonstrates that the optimization of the stoichiometry and construction of bimetallic materials is a feasible method to synthesize controllable and efficient nanocatalysts.

Safety of 1-(4-Nitrophenyl)ethanone. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Shao, JL; Liu, MM; Wang, ZZ; Li, KJ; Bao, B; Zhao, SL; Zhou, SH or concate me.

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

An article Catalytic Deoxygenation of Nitroarenes Mediated by High-Valent Molybdenum(VI)-NHC Complexes WOS:000613724300004 published article about N-HETEROCYCLIC CARBENE; OXYGEN-ATOM TRANSFER; CHEMOSELECTIVE TRANSFER HYDROGENATION; BIOMASS-DERIVED POLYOLS; DECAMETHYLYTTERBOCENE COMPLEXES; DIOXOMOLYBDENUM(VI) COMPLEXES; MOLECULAR-STRUCTURE; RU-II; IMIDO; LIGANDS in [Liu, Shenyu; Baltrun, Marc; Schoch, Roland] Paderborn Univ, Fac Sci, Dept Chem, D-100 Paderborn, Germany; [Amaro-Estrada, Jorge Ivan; Douair, Iskander; Maron, Laurent] Univ Toulouse, INSA Toulouse, LPCNO, F-31077 Toulouse, France; [Hohloch, Stephan] Univ Innsbruck, Fac Chem & Pharm, Inst Gen Inorgan & Theoret Chem, A-6020 Innsbruck, Austria in 2021.0, Cited 102.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. COA of Formula: C8H7NO3

The high-valent molybdenum(VI) N-heterocyclic carbene complexes, (NHC)MoO2 (1) and (NHC)MoO(N+Bu) (2) (NHC = 1,3-bis(3,5-di-tert-butyl-2-phenolato)-benzimidazol-2-ylidene), are investigated toward their catalytic potential in the deoxygenation of nitroarenes. Using pinacol as the sacrificial and green reductant, both complexes are shown to be very active (pre)catalysts for this transformation allowing a reduction of the catalyst loading down to 0.25 mol %. Mechanistic investigations show mu-oxo bridged molybdenum(V) complexes [(NHC)MoO](2)O (4) and [(NHC)Mo((NBu)-Bu-t)](2)O (5) as well as zwitterionic pinacolate benzimidazolium complex 6, with a doubly protonated NHC ligand, to be potentially active species in the catalytic cycle. Both 4 and 5 can be prepared independently by the deoxygenation of 1 and 2 using triethyl phosphine (PEt3) or triphenyl phosphine (PPh3) and were shown to exhibit an unusual multireferenced ground state with a very small singlet-triplet gap at room temperature. Computational studies show that the spin state plays an unneglectable role in the catalytic process, efficiently lowering the reaction barrier of the deoxygenation step. Mechanistic details, putting special emphasis on the fate of the catalyst will be presented and potential routes how nitroarene reduction is facilitated are evaluated.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Liu, SY; Amaro-Estrada, JI; Baltrun, M; Douair, I; Schoch, R; Maron, L; Hohloch, S or concate me.. COA of Formula: C8H7NO3

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

An article Synthesis of bis(indolyl)methanes under dry grinding conditions, promoted by a Lewis acid-surfactant-SiO2-combined nanocatalyst WOS:000474622600003 published article about ORGANIC-SYNTHESIS; HIGHLY EFFICIENT; ACID; CATALYST; WATER; DERIVATIVES; COCATALYST; COMPOSITE; CHEMISTRY in [Wu, Zhiqiang; Wang, Gang; Yuan, Shuo; Wu, Dan; Liu, Wanyi; Ma, Baojun; Bi, Shuxian; Zhan, Haijuan; Chen, Xiaoyan] Ningxia Univ, Coll Chem & Chem Engn, Natl Demonstrat Ctr Expt Chem Educ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Peoples R China 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. Recommanded Product: 100-19-6

An in situ developed Lewis acid-surfactant-SiO2-combined (LASSC) nanocatalyst was used, for the first time, as a green and effective promoting medium for the electrophilic activation of aldehydes under solvent-free and dry grinding conditions. The advantages of using the LASSC nanocatalyst include avoiding the generation of wastewater containing sodium dodecyl sulfate and the use of toxic reagents, excellent reusability of the catalyst, and obtaining a high yield of bis(indolyl)methanes.

Recommanded Product: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Wu, ZQ; Wang, G; Yuan, S; Wu, D; Liu, WY; Ma, BJ; Bi, SX; Zhan, HJ; Chen, XY or concate me.

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

An article Copper(II)-Catalyzed Selective Hydroboration of Ketones and Aldehydes WOS:000456633000012 published article about MAGNESIUM-CATALYZED HYDROBORATION; ASYMMETRIC TRANSFER HYDROGENATION; ABUNDANT METAL-CATALYSTS; IRON; ALKYNES; REDUCTION; HYDROSILYLATION; ALKYLATION; MECHANISM; NITRILES in [Zeng, Haisu; Wu, Jing; Li, Sihan; Hui, Christina; Ta, Anita; Cheng, Shu-Yuan; Zhang, Guoqi] CUNY, John Jay Coll, Dept Sci, New York, NY 10019 USA; [Zeng, Haisu; Wu, Jing; Li, Sihan; Hui, Christina; Ta, Anita; Cheng, Shu-Yuan; Zhang, Guoqi] CUNY, Grad Ctr, PhD Program Chem, New York, NY 10019 USA; [Zeng, Haisu; Wu, Jing; Li, Sihan; Zheng, Shengping] CUNY Hunter Coll, Dept Chem, New York, NY 10065 USA in 2019.0, Cited 56.0. 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 novel nonanuclear copper(II) complex obtained by a facile one-pot self-assembly was found to catalyze the hydroboration of ketones and aldehydes with the absence of an activator under mild, solvent-free conditions. The catalyst is air-and moisture-stable, displaying high efficiency (1980 h(-1) turnover frequency, TOF) and chemo-selectivity on aldehydes over ketones and ketones over imines. This represents a rare example of divalent copper catalyst for the hydroboration of carbonyls.

Recommanded Product: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Zeng, HS; Wu, J; Li, SH; Hui, C; Ta, A; Cheng, SY; Zheng, SP; Zhang, GQ or concate me.

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