Category: 100-19-6

An article Common Occurrence of Twisted Molecular Crystal Morphologies from the Melt WOS:000569269800058 published article about SPHERULITES; CRYSTALLIZATION; ORIGIN; PREDICTION; POLYMER in [Shtukenberg, Alexander G.; Zhu, Xiaolong; Yang, Yongfan; Kahr, Bart] NYU, Dept Chem, New York, NY 10003 USA; [Shtukenberg, Alexander G.; Zhu, Xiaolong; Yang, Yongfan; Kahr, Bart] NYU, Mol Design Inst, New York, NY 10003 USA in 2020, Cited 49. 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

Two books that describe the forms of thin films of many molecular crystals grown from the melt in polarized light, Gedrillte Kristalle (1929) by Ferdinand Bernauer and Thermomicroscopy in the Analysis of Pharmaceuticals (1971) by Maria Kuhnert-Brandstatter, are analyzed. Their descriptions, especially of curious morphologies consistent with helicoidal twisting of crystalline fibrils or narrow lamellae, are compared in the aggregate with observations from our laboratory collected during the past 10 years. According to Bernauer, 27% of molecular crystals from the melt adopt helicoidal crystal forms under some growth conditions even though helicoids are not compatible with long-range translational symmetry, a feature that is commonly thought to be an a priori condition for crystallinity. Bernauer’s figure of 27% is often met with surprise if not outright skepticism. Kuhnert-Brandstatter was aware of the tell-tale polarimetric signature of twisting (rhythmic interference colors) but observed this characteristic morphology in less than 0.5% of the crystals described. Here, the experience of the authors with 101 arbitrarily selected compounds-many of which are polymorphous-representing 155 total crystal structures, shows an even higher percentage (ca. 31%) of twisted crystals than the value reported by Bernauer. These observations, both positive (twisting) and negative (no twisting), are tabulated. It is concluded that twisting is not associated with molecular structure or crystal structure/symmetry. Rather, these nonclassical morphologies are associated with certain habits with exaggerated aspect ratios, and their appearance is strongly controlled by the growth conditions. Comments are offered in an attempt to reconcile the observations here, and those of Bernauer, the work of seekers of twisted crystals, with those of Kuhnert-Brandstatter, whose foremost consideration was the characterization of polymorphs of compounds of medicinal interest.

SDS of cas: 100-19-6. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Shtukenberg, AG; Zhu, XL; Yang, YF; Kahr, B or concate me.

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

Recommanded Product: 1-(4-Nitrophenyl)ethanone. Baydas, Y; Dertli, E; Sahin, E in [Baydas, Yasemin; Dertli, Enes] Bayburt Univ, Fac Engn, Dept Food Engn, Bayburt, Turkey; [Sahin, Engin] Bayburt Univ, Fac Hlth Sci, Dept Nutr & Dietet, TR-6900 Bayburt, Turkey published Green synthesis of chiral aromatic alcohols with Lactobacillus kefiri P2 as a novel biocatalyst in 2020.0, Cited 31.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

Biocatalytic reduction is a very important field of research in synthetic organic chemistry. Herein, three different Lactic Acid Bacteria (LAB) strains were evaluated for their bioreduction potential using acetophenone as a model substrate. Among these strains, Lactobacillus kefiri P2 strain was determined as the best asymmetric reduction biocatalyst. Reaction optimization parameters such as reaction time, temperature, agitation speed and pH were systematically optimized using Lactobacillus kefiri P2 strain and model substrate acetophenone. Under these optimized reaction conditions, secondary chiral alcohols were obtained by bioreduction of various prochiral ketones with results up to 99% enantiomeric excess. In addition, the steric and electronic effects of substituents on enantioselectivity and conversion were evaluated. It has been shown that Lactobacillus kefiri P2 biocatalyst was an effective catalyst for asymmetric reduction. This method provides an environmentally friendly method for the synthesis of optically pure alcohols and an alternative approach to chemical catalysts.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Baydas, Y; Dertli, E; Sahin, E or concate me.. Recommanded Product: 1-(4-Nitrophenyl)ethanone

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

Quality Control of 1-(4-Nitrophenyl)ethanone. Chen, LW; Wu, ZY; Nan, H; Wang, L; Chu, SQ; Liang, HW in [Chen, Lin-Wei; Wu, Zhen-Yu; Nan, Hang; Wang, Lei; Liang, Hai-Wei] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China; [Chu, Sheng-Qi] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China published A metal-catalyzed thermal polymerization strategy toward atomically dispersed catalysts in 2019, Cited 31. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

We report a general metal-catalyzed thermal polymerization strategy for the preparation of atomically dispersed catalysts that consist of isolated metal atoms (Fe, Co and Ni) hosted by a polymer-like carrier containing phenanthroline substructure. The prepared atomically dispersed cobalt catalysts exhibit high selectivity, activity, and reusability in catalyzing aromatic alkane oxidation.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Chen, LW; Wu, ZY; Nan, H; Wang, L; Chu, SQ; Liang, HW or concate me.. Quality Control of 1-(4-Nitrophenyl)ethanone

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

Authors Williams, UJ in AMER CHEMICAL SOC published article about in [Williams, Ursula J.] Juniata Coll, Dept Chem & Biochem, Huntingdon, PA 16652 USA in 2020.0, Cited 13.0. HPLC of Formula: C8H7NO3. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

The Organisation for the Prohibition of Chemical Weapons (OPCW) has identified education and outreach as vital to global efforts that emphasize the responsible use of chemicals. To promote students’ exposure to broad-reaching applications of analytical chemistry, a chemical-weapons-themed project was implemented in an upper-level analytical chemistry course. In this project, students developed laboratory and data analysis skills needed to complete organic structure analysis, professionally communicated their data and conclusions, and considered chemical analysis in an applied context. This project grounds the topic of multiuse chemicals in a case-based, active-learning context.

HPLC of Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Williams, UJ or concate me.

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

An article Palladium-Catalyzed C-H Arylation of Aliphatic and Aromatic Ketones using Dipeptide Transient Directing Groups WOS:000466161500014 published article about CARBON-CARBON BONDS; C(SP(3))-H FUNCTIONALIZATION; ALDEHYDES; OSTEOARTHRITIS; NABUMETONE; ACTIVATION; MANAGEMENT; AMIDATION; SAFETY; DRUG in [Cheng, Yaohang; Zheng, Jie; Tian, Chao; He, Yuhang; Zhang, Cong; Tan, Qi; An, Guanghui; Li, Guangming] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem MOE, Sch Chem & Mat Sci, 74 Xuefu Rd, Harbin 150080, Heilongjiang, Peoples R China; [An, Guanghui] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China in 2019.0, Cited 52.0. 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

Ketones are ubiquitous structural motifs in chemical materials and medicinally active pharmaceutical ingredients. Transition metal-catalyzed C-H bond functionalization is one of the most efficient tactics for diversification of ketones. Palladium-catalyzed C-H arylation of aliphatic and aromatic ketones has been achieved utilizing an inexpensive dipeptide as a transient directing group. The tridentate coordination used in this reaction enhances the reactivity of the substrates and allows reduction of the loading of the directing group compounds to 20%. This approach allows rapid arylation of complex natural products, medicinal-chemistry-related scaffolds, and even remote C(sp(2))-H bonds.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Cheng, YH; Zheng, J; Tian, C; He, YH; Zhang, C; Tan, Q; An, GH; Li, GM or concate me.. Recommanded Product: 1-(4-Nitrophenyl)ethanone

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

An article Ammonium chloride-catalyzed green multicomponent synthesis of dihydropyrazine and tetrahydrodiazepine derivatives on water WOS:000478882900005 published article about ONE-POT SYNTHESIS; 3,4-DIHYDROQUINOXALIN-2-AMINE DERIVATIVES; 3-COMPONENT SYNTHESIS; EFFICIENT; 4-COMPONENT; PYRAZINE; ISOCYANIDES; CHEMISTRY in [Shaabani, Ahmad; Sepahvand, Heshmatollah; Ghasemi, Shima] Shahid Beheshti Univ, Dept Chem, POB 19396-4716, Tehran, Iran in 2019.0, Cited 51.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Category: benzodioxans

This research describes a simple and efficient one-pot synthetic approach for the preparation of tetrahydrodiazepine and dihydropyrazine (or dihydroquinoxaline) derivatives in high yields in the presence of a substoichiometric amount of ammonium chloride as a green accelerator on water at 50 degrees C within 1-3 h. [GRAPHICS] .

Category: benzodioxans. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Shaabani, A; Sepahvand, H; Ghasemi, S or concate me.

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

An article Frustrated Lewis pairs: A real alternative to deuteride/tritide reductions WOS:000492827500007 published article about HETEROLYTIC DIHYDROGEN ACTIVATION; METAL-FREE HYDROGENATION; H/D-EXCHANGE; LABELED COMPOUNDS; HEAVY ISOTOPES; TRITIUM; DISCOVERY; DRUG; FUNCTIONALIZATION; DEUTERATION in [Doubkova, Sabina; Marek, Ales] Czech Acad Sci, Inst Organ Chem & Biochem, Flemingovo 542-2, Prague 16610 6, Czech Republic in 2019.0, Cited 60.0. 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

Deuterium- and tritium-labeled compounds play a principal role in tracing of biologically active molecules in complicated biochemical systems. The state-of-the-art techniques using noble metal catalysts or strong reducing agents often suffers from low functional group tolerances, poor selectivity, tricky or multistep synthesis of reagents, and low specific activity of the labeled product. Herein, we demonstrate a mild and nonmetallic technique of deuteration and tritiation of polarized double bonds, such as carbonyl compounds, yielding labeled alcohols of high specific activities. This one-pot synthesis uses carrier-free hydrogen gas in situ activated by a freshly prepared frustrated Lewis pair, generating reducing reagents. This labeling strategy shows better selectivity and functional group tolerances compared with current reductive methods. Reported is an example of the selective reduction of the aldehyde moiety of 3-acetylbenzaldehyde. What makes this technology groundbreaking is its mildness, selectivity, and generation of limited amount of radioactive waste as almost no byproducts were generated after use of (B(C6F5)(3)H-3)((HTMP)-H-3) reducing reagent. Radiochemical purity of desired H-3-labeled product in a crude reaction mixture was determined of over 94%. This work provides, to the community of radiochemists, a practical protocol for frustrated Lewis pairs (FLP)-assisted deuterium/tritium labeling technology.

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

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

In 2020.0 EUR J ORG CHEM published article about SELECTIVE SYNTHESIS; PENTAARYLPYRIDINES; ARYLPYRIDINES; CONSTRUCTION; CONDENSATION; DERIVATIVES; ENAMINES; KINETICS; BINDING in [Arita, Mao; Yokoyama, Soichi; Asahara, Haruyasu; Nishiwaki, Nagatoshi] Kochi Univ Technol, Sch Environm Sci & Engn, Kami Kochi 7828502, Japan; [Yokoyama, Soichi; Asahara, Haruyasu; Nishiwaki, Nagatoshi] Kochi Univ Technol, Res Ctr Mat Sci & Engn, Kami Kochi 7828502, Japan; [Asahara, Haruyasu] Osaka Univ, Grad Sch Pharmaceut Sci, Yamadaoka 1-6, Suita, Osaka 5650871, Japan in 2020.0, Cited 47.0. 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

Condensation of beta-(2-pyridyl)enamine and alpha,beta-unsaturated ketone in the presence of FeCl3 under air afforded highly substituted pyridines. In this transformation, FeCl3 acted as not only an acid catalyst but also an oxidant for the intermediate dihydropyridine. The substituents could be easily modified by altering the substrates to obtain tri- and tetraarylpyridines including bipyridines and terpyridine. Synthesis of differently substituted pentaarylpyridines was consequently achieved via only three steps from commercially available reagents with simple experimental manipulations.

Recommanded Product: 1-(4-Nitrophenyl)ethanone. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Arita, M; Yokoyama, S; Asahara, H; Nishiwaki, N or concate me.

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

I found the field of Science & Technology – Other Topics very interesting. Saw the article Preparation of palladated porous nitrogen-doped carbon using halloysite as porogen: disclosing its utility as a hydrogenation catalyst published in 2020.0. Quality Control of 1-(4-Nitrophenyl)ethanone, Reprint Addresses Sadjadi, S (corresponding author), Iran Polymer & Petrochem Inst, Fac Petrochem, Gas Convers Dept, POB 14975-112, Tehran, Iran.; Heravi, MM (corresponding author), Alzahra Univ, Sch Sci, Dept Chem, POB 1993891176, Tehran, Iran.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

In this article, halloysite nanoclay (Hal) was used as porogen for the synthesis of nitrogen doped porous carbon material with high specific surface area and pore volume. To this purpose, polymerization of melamine and terephthalaldehyde (MT) was performed in the presence of amine-functionalized carbon coated Hal (Hal@Glu-2N) that was prepared from hydrothermal treatment of Hal and glucose. Then, the prepared nanocomposite was palladated and carbonized to afford Pd@Hal@C. To further improve the textural properties of the nanocomposite, and introduce more pores in its structure, Hal nanotubes were etched. The characterization of the resulting compound, Pd@C, and comparing it with Pd@Hal@C, showed that etching of Hal significantly increased the specific surface area and pore volume in Pd@C. Pd@C was successfully used as a heterogeneous catalyst for promoting hydrogenation of nitroarens in aqueous media using hydrogen with atmospheric pressure as a reducing agent. The comparison of the structural features and catalytic activity of the catalyst with some control catalysts, including, Pd@Hal, Pd@Hal@Glu, Pd@Hal@Glu-MT and Pd@Hal@C confirmed that nitrogen groups in C could improve the Pd anchoring and suppress its leaching, while etching of Hal and introduction of more pores could enhance the catalytic activity through facilitating the mass transfer.

About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Sadjadi, S; Malmir, M; Lazzara, G; Cavallaro, G; Heravi, MM or concate me.. Quality Control of 1-(4-Nitrophenyl)ethanone

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

HPLC of Formula: C8H7NO3. I found the field of Chemistry very interesting. Saw the article Enantioselective Reduction of alpha,beta-Unsaturated Ketones and Aryl Ketones by Perakine Reductase published in 2019.0, Reprint Addresses Sun, LL (corresponding author), Zhejiang Univ, Coll Pharmaceut Sci, Inst Drug Metab & Pharmaceut Anal, Hangzhou 310058, Zhejiang, Peoples R China.; Zhao, JH (corresponding author), Zhejiang Univ, Inst Pesticide & Environm Toxicol, Minist Agr, Key Lab Mol Biol Crop Pathogens & Insects, Hangzhou 310029, Zhejiang, Peoples R China.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone.

This report describes the enantioselective reduction of structurally diverse alpha,beta-unsaturated ketones and aryl ketones by perakine reductase (PR) from Rauvolfia. This enzymatic reduction produces alpha-chiral allylic and aryl alcohols with excellent enantioselectivity and most of the products in satisfactory yields. Furthermore, the work demonstrates 1 mmol scale reactions for product delivery without any detrimental effect on yield and enantioselectivity. The catalytic mechanism, determined by 3D-structure-based modeling of PR and ligand complexes, is also described.

HPLC of Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Cai, S; Shao, NN; Chen, YY; Li, AB; Pan, J; Zhu, HJ; Zou, HB; Zeng, S; Sun, LL; Zhao, JH or concate me.

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