Tag: M.W=150-200

Recommanded Product: 1-(4-Nitrophenyl)ethanone. Shtukenberg, AG; Zhu, XL; Yang, YF; Kahr, B 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 published Common Occurrence of Twisted Molecular Crystal Morphologies from the Melt in 2020, Cited 49. 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.

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

In 2021 DALTON T published article about ASYMMETRIC TRANSFER HYDROGENATION; CARBONYL-COMPOUNDS; CRYSTAL-STRUCTURES; KETONES; REDUCTION; ALCOHOLS; METAL; ACID; CONSTANTS; ALDEHYDES in [Yadav, Samanta; Vijayan, Paranthaman; Yadav, Sunil; Gupta, Rajeev] Univ Delhi, Dept Chem, Delhi 110007, India in 2021, Cited 90. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Name: 1-(4-Nitrophenyl)ethanone

This work presents three mononuclear Ru(ii) complexes of tridentate phosphine-carboxamide based ligands providing a NNP coordination environment. The octahedral Ru(ii) ion shows additional coordination with co-ligands; CO, Cl and CH3OH. All three Ru(ii) complexes were thoroughly characterized including their crystal structures. These Ru(ii) complexes were utilized as catalysts for the transfer hydrogenation of assorted carbonyl compounds, including some challenging biologically relevant substrates, using isopropanol as the hydrogen source. The binding studies illustrated the coordination of the isopropoxide ion by replacing a Ru-ligated chloride ion followed by the generation of the Ru-H intermediate that was isolated and characterized and was found to be involved in the catalysis.

Name: 1-(4-Nitrophenyl)ethanone. 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

Recently I am researching about ASYMMETRIC HYDROGENATION; IRON; EFFICIENT; MECHANISM; CHEMISTRY; ALDEHYDES; NITRILES; ALCOHOLS; LIGANDS; METALS, Saw an article supported by the Russian Science FoundationRussian Science Foundation (RSF) [17-73-20144]; Ministry of Science and Higher Education of the Russian Federation. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Shvydkiy, NV; Vyhiyskyi, O; Nelyubina, YV; Perekalin, DS. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone. COA of Formula: C8H7NO3

Catalytic hydrogenation is one of the most important reactions both in academic research and industry. We explored ability of the manganese pi-complexes to act as Shvo-type catalysts for transfer hydrogenation of ketones. DFT calculations suggested that the transfer of hydrogen atoms from the hypothetical intermediate [(C6Me3H2OH)Mn(CO)(2)H] to acetone has low activation barrier of 10.9 kcal mol(-1). Experimentally a number of ketones with various functional groups (OMe, NH2, Cl, CF3, pyridyl) were successfully reduced in isopropanol at 90 degrees C in the presence of the complex[(C6Me3H2OH)Mn(CO)(3)]BF4 (1 mol %) and (BuOK)-Bu-t (75 mol %). However, further investigation revealed that the reduction was mainly promoted by base rather than the manganese complex.

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

I found the field of Crystallography very interesting. Saw the article Crystal structure and Hirshfeld surface analysis of a chalcone derivative: (E)-3-(4-fluorophenyl)-1-(4-nitrophenyl)prop-2-en-1-one published in 2019.0. Quality Control of 1-(4-Nitrophenyl)ethanone, Reprint Addresses Kumar, CSC (corresponding author), Visvesvaraya Technol Univ, Vidya Vikas Inst Engn & Technol, Dept Engn Chem, Alanahalli 570028, Mysuru, India.; Arafath, MA (corresponding author), Shahjalal Univ Sci & Technol, Dept Chem, Sylhet 3114, Bangladesh.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

The molecular structure of the title chalcone derivative, C15H10FNO3, is nearly planar and the molecule adopts a trans configuration with respect to the C=C double bond. The nitro group is nearly coplanar with the attached benzene ring, which is nearly parallel to the second benzene ring. In the crystal, molecules are connected by pairs of weak intermolecular C-H center dot center dot center dot O hydrogen bonds into inversion dimers. The dimers are further linked by another C-H center dot center dot center dot O hydrogen bond and a C-H center dot center dot center dot F hydrogen bond into sheets parallel to (104). pi-pi interactions occur between the sheets, with a centroid-centroid distance of A 3.8860 (11) angstrom. Hirshfeld surface analysis was used to investigate and quantify the intermolecular interactions.

Quality Control of 1-(4-Nitrophenyl)ethanone. 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

Computed Properties of C8H7NO3. Authors Rana, M; Arif, R; Khan, FI; Maurya, V; Singh, R; Faizan, MI; Yasmeen, S; Dar, SH; Alam, R; Sahu, A; Ahmad, T; Rahisuddin in ACADEMIC PRESS INC ELSEVIER SCIENCE published article about in [Rana, Manish; Arif, Rizwan; Yasmeen, Shama; Dar, Sajad Hussain; Rahisuddin] Jamia Millia Islamia, Dept Chem, New Delhi 110025, India; [Khan, Faez Iqbal] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu, Peoples R China; [Maurya, Vikas; Singh, Raja] Jawharlal Nehru Univ, Special Ctr Mol Med, New Delhi 110067, India; [Faizan, Md Imam; Ahmad, Tanveer] Jamia Millia Islamia, Multidisciplinary Ctr Adv Res & Studies, New Delhi 110025, India; [Alam, Raquib] Jamia Millia Islamia, Univ Polytech, Dept Appl Sci, New Delhi 110025, India; [Sahu, Ankita] Safdarjung Hosp Campus, ICMR Natl Inst Pathol, New Delhi 110029, India in 2021.0, Cited 77.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

N-formyl pyrazoline derivatives (3a-3l) were designed and synthesized via Michael addition reaction through cyclization of chalcones with hydrazine hydrate in presence of formic acid. The structural elucidation of N-formyl pyrazoline derivatives was carried out by various spectroscopic techniques such as H-1, C-13 NMR, FT-IR, UV-visible spectroscopy, mass spectrometry and elemental analysis. Anticancer activity of the pyrazoline derivatives (3a-3l) was evaluated against human lung cancer (A549), fibrosarcoma cell lines (HT1080) and human primary normal lung cells (HFL-1) by MTT assay. The results of anticancer activity showed that potent analogs 3b and 3d exhibited promising activity against A549 (IC50 = 12.47 +/- 1.08 and 14.46 +/- 2.76 mu M) and HT1080 (IC50 = 11.40 +/- 0.66 and 23.74 +/- 13.30 mu M) but low toxic against the HFL-1 (IC50 =116.47 +/- 43.38 and 152.36 +/- 22.18 mu M). The anticancer activity of potent derivatives (3b and 3d) against A549 cancer cell line was further confirmed by flow cytometry based approach. DNA binding interactions of the pyrazoline derivatives 3b and 3d have been carried out with calf thymus DNA (Ct-DNA) using absorption, fluorescence and viscosity measurements, circular dichroism and cyclic voltammetry. Antioxidant potential of N-formyl pyrazoline derivatives (3a-3l) has been also estimated through DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical and H2O2. Results revealed that all the compounds exhibited significant antioxidant activity. In silico molecular modelling and ADMET properties of pyrazoline derivatives were also studied using PyRx software against topoisomerase II receptor with PDB ID: 1ZXM to explore their best hits. MD simulation of 3b and 3d was also carried out with topoisomerase II for structure-function correlation in a protein. HuTopoII inhibitory activity of the analogs (3a-3l) was examined by relaxation assay at varying concentrations 100-1000 mu M.

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

Safety of 1-(4-Nitrophenyl)ethanone. Authors Hafliger, J; Livingstone, K; Daniliuc, CG; Gilmour, R in ROYAL SOC CHEMISTRY published article about in [Haefliger, Joel; Livingstone, Keith; Daniliuc, Constantin G.; Gilmour, Ryan] Westfalische Wilhelms Univ Munster, Organ Chem Inst, D-48149 Munster, Germany in 2021.0, Cited 17.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

Simple alpha-(bromomethyl)styrenes can be processed to a variety of 1,1-difluorinated electrophilic building blocks via I(I)/I(III) catalysis. This inexpensive main group catalysis strategy employs p-TolI as an effective organocatalyst when combined with Selectfluor (R) and simple amine center dot HF complexes. Modulating Bronsted acidity enables simultaneous geminal and vicinal difluorination to occur, thereby providing a platform to generate multiply fluorinated scaffolds for further downstream derivatization. The method facilitates access to a tetrafluorinated API candidate for the treatment of amyotrophic lateral sclerosis. Preliminary validation of an enantioselective process is disclosed to access alpha-phenyl-beta-difluoro-gamma-bromo/chloro esters.

Welcome to talk about 100-19-6, If you have any questions, you can contact Hafliger, J; Livingstone, K; Daniliuc, CG; Gilmour, R or send Email.. Safety of 1-(4-Nitrophenyl)ethanone

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

Recommanded Product: 86-29-3. Authors Zhou, YL; Xu, XJ; Sun, HW; Tao, GY; Chang, XY; Xing, XY; Chen, B; Xu, C in NATURE RESEARCH published article about in [Zhou, Yali; Xu, Xingjun; Sun, Hongwei; Tao, Guanyu; Chang, Xiao-Yong; Xing, Xiangyou; Xu, Chen] Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen, Guangdong, Peoples R China; [Zhou, Yali; Xu, Xingjun; Sun, Hongwei; Tao, Guanyu; Chang, Xiao-Yong; Xing, Xiangyou; Xu, Chen] Southern Univ Sci & Technol, Dept Chem, Guangdong Prov Key Lab Catalysis, Shenzhen, Guangdong, Peoples R China; [Chen, Bo] Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen, Guangdong, Peoples R China in 2021, Cited 66. The Name is 2,2-Diphenylacetonitrile. Through research, I have a further understanding and discovery of 86-29-3

Hydrofunctionalization, the direct addition of an X-H (e.g., X=O, N) bond across an alkene, is a desirable strategy to make heterocycles that are important structural components of naturally occurring molecules. Described here is the design and discovery of donor-acceptor-type platinum catalysts that are highly effective in both hydroalkoxylation and hydroamination of unactivated alkenes over a broad range of substrates under mild conditions. A number of alkene substitution patterns are accommodated, including tri-substituted, 1,1-disubstituted, (E)-disubstituted, (Z)-disubstituted and even mono-substituted double bonds. Detailed mechanistic investigations suggest a plausible pathway that includes an unexpected dissociation/re-association of the electron-deficient ligand to form an alkene-bound donor-acceptor-type intermediate. These mechanistic studies help understand the origins of the high reactivity exhibited by the catalytic system, and provide a foundation for the rational design of chiral catalysts towards asymmetric hydrofunctionalization reactions. The direct addition of an O-H (hydroalkoxylation) or an N-H (hydroamination) bond across an alkene is a useful strategy to access biologically relevant heterocycles. Here, the authors report donor-acceptor-type platinum catalysts that are effective for both hydroalkoxylation and hydroamination of unactivated alkenes, with broad substrate scope and use of mild conditions.

Recommanded Product: 86-29-3. Welcome to talk about 86-29-3, If you have any questions, you can contact Zhou, YL; Xu, XJ; Sun, HW; Tao, GY; Chang, XY; Xing, XY; Chen, B; Xu, C or send Email.

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

Safety of 1-(4-Nitrophenyl)ethanone. 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. 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.

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

Authors Shu, B; Zeng, P; Kang, SS; Li, PH; Hu, DX; Kuang, GT; Cao, JJ; Li, XY; Zhang, ML; An, LK; Huang, ZS; Li, D in ACADEMIC PRESS INC ELSEVIER SCIENCE published article about NUCLEAR RIBONUCLEOPROTEIN-K; CARBON NANOTUBES BINDING; I-MOTIF DNA; CELL-PROLIFERATION; STRANDED-DNA; G-QUADRUPLEX; PROMOTER; PROTEIN; METASTASIS; MECHANISM in [Shu, Bing; Zeng, Ping; Kang, Shuangshuang; Li, Peng-Hui; Hu, Dexuan; Kuang, Guotao; Cao, Jiaojiao; Li, Xiaoya; Zhang, Meiling; An, Lin-Kun; Huang, Zhi-Shu; Li, Ding] Sun Yat Sen Univ, Sch Pharmaceut Sci, 132 Waihuan East Rd, Guangzhou 510006, Guangdong, Peoples R China; [Shu, Bing] Guangdong Pharmaceut Univ, Sch Pharm, Guangzhou 510006, Guangdong, Peoples R China in 2019, Cited 54. 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

Aberrant overexpression of heterogeneous nuclear ribonucleoprotein K (hnRNP K) is a key feature in oncogenesis and progression of many human cancers. hnRNP K has been found to be a transcriptional activator to up-regulate c-myc gene transcription, a critical proto-oncogene for regulation of cell growth and differentiation. Therefore, down-regulation of c-myc transcription by inhibiting hnRNP K through disrupting its binding to c-myc gene promoter is a potential approach for cancer therapy. In the present study, we synthesized and screened a series of Quinoline derivatives and evaluated their binding affinity for hnRNP K. Among these derivatives, (E)-1-(4-methoxyphenyl)-3-(4 morpholino-6-nitroquinolin-2-yl)prop-2-en-1-one (compound 25) was determined to be the first-reported hnRNP K binding ligand with its K-D values of 4.6 and 2.6 mu M measured with SPR and MST, respectively. Subsequent evaluation showed that the binding of compound 25 to hnRNP K could disrupt its unfolding of c-myc promoter i-motif, resulting in down-regulation of c-myc transcription. Compound 25 showed a selective anti-proliferative effect on human cancer cell lines with IC50, values ranged from 1.36 to 3.59 mu M. Compound 25 exhibited good tumor growth inhibition in a Hela xenograft tumor model, which might be related to its binding with hnRNP K. These findings illustrated that inhibition of DNA-binding protein hnRNP K by compound 25 could be a new and selective strategy of regulating oncogene transcription instead of targeting promoter DNA secondary structures such as G-quadruplexes or i-motifs.

Welcome to talk about 100-19-6, If you have any questions, you can contact Shu, B; Zeng, P; Kang, SS; Li, PH; Hu, DX; Kuang, GT; Cao, JJ; Li, XY; Zhang, ML; An, LK; Huang, ZS; Li, D or send Email.. Recommanded Product: 100-19-6

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. Category: benzodioxans. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 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.

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