Tag: M.W=150-200

An article Synthesis of 4-Aryl Pyrrolo[1,2-alpha]quinoxalines via Iron-Catalyzed Oxidative Coupling from an Unactivated Methyl Arene WOS:000661138500008 published article about ONE-POT SYNTHESIS; EFFICIENT SYNTHESIS; ANTIPROLIFERATIVE ACTIVITY; ANTIMALARIAL ACTIVITY; POTENTIAL INHIBITORS; BRONSTED ACID; DERIVATIVES; CLEAVAGE; ACCESS; 1-(2-AMINOPHENYL)-PYRROLES in [Ahn, Jiwon; Lee, Seok Beom; Song, Injae; Chun, Simin; Hong, Suckchang] Seoul Natl Univ, Coll Pharm, Res Inst Pharmaceut Sci, Seoul 08826, South Korea; [Oh, Dong-Chan] Seoul Natl Univ, Coll Pharm, Nat Prod Res Inst, Seoul 08826, South Korea in 2021.0, Cited 48.0. Quality Control of Benzophenone. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

Herein, we describe the direct synthesis of pyrrolo[1,2-alpha]quinoxaline via oxidative coupling between methyl arene and 1-(2-aminophenyl) pyrroles. Oxidation of the benzylic carbon of the methyl arene was achieved by di-t-butyl peroxide in the presence of an iron catalyst, followed by conversion to an activated aldehyde in situ. Oxygen played a crucial role in the oxidation process to accelerate benzaldehyde formation. Subsequent Pictet-Spengler-type annulation completed the quinoxaline structure. The protocol tolerated various kinds of functional groups and provided 22 4-aryl pyrrolo[1,2-alpha]quinoxalines when various methyl arene derivatives were used. The developed method proceeded in air, and all catalysts, reagents, and solvents were easily accessible.

About Benzophenone, If you have any questions, you can contact Ahn, J; Lee, SB; Song, I; Chun, S; Oh, DC; Hong, S or concate me.. Quality Control of Benzophenone

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Authors Jurgeleit, R; Grimm-Lebsanft, B; Floser, BM; Teubner, M; Buchenau, S; Senft, L; Hoffmann, J; Naumova, M; Nather, C; Ivanovic-Burmazovic, I; Rubhausen, M; Tuczek, F in WILEY-V C H VERLAG GMBH published article about in [Jurgeleit, Ramona; Floeser, Benedikt Maria; Naether, Christian; Tuczek, Felix] Christian Albrechts Univ Kiel, Inst Inorgan Chem, Max Eyth Str 2, D-24118 Kiel, Germany; [Grimm-Lebsanft, Benjamin; Teubner, Melissa; Buchenau, Soren; Ruebhausen, Michael] Univ Hamburg, Ctr Free Electron Laser Sci CFEL, Inst Nanostruktur & Festkcrperphys, Luruper Chaussee 149, D-22761 Hamburg, Germany; [Floeser, Benedikt Maria] Max Planck Inst Chem Energy Convers, Stiftstr 34-36, D-45470 Muhlheim An Der Ruhr, Germany; [Teubner, Melissa] Rhein Westfal TH Aachen, Dept Inorgan Chem, Landoltweg 1, D-52074 Aachen, Germany; [Senft, Laura; Ivanovic-Burmazovic, Ivana] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, Egerlandstr 1, D-91058 Erlangen, Germany; [Hoffmann, Jonas] Univ Bremen, Inst Analyt & Organ Chem, Leobener Str 7, D-28359 Bremen, Germany; [Hoffmann, Jonas] Univ Bremen, MAPEX, Ctr Mat & Proc, Bibliothekstr 1, D-28359 Bremen, Germany; [Naumova, Maria] Deutsch Elektronen Synchrotron DESY, DESY, Notkestr 85, D-22607 Hamburg, Germany; [Ivanovic-Burmazovic, Ivana] Ludwig Maximilians Univ Munchen, Dept Chem, Butenandtstr 5-13,Haus D, D-81377 Munich, Germany in 2021.0, Cited 71.0. Recommanded Product: 119-61-9. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

One of the challenges of catalysis is the transformation of inert C-H bonds to useful products. Copper-containing monooxygenases play an important role in this regard. Here we show that low-temperature oxygenation of dinuclear copper(I) complexes leads to unusual tetranuclear, mixed-valent mu(4)-peroxo [Cu-I/Cu-II](2) complexes. These Cu4O2 intermediates promote irreversible and thermally activated O-O bond homolysis, generating Cu2O complexes that catalyze strongly exergonic H-atom abstraction from hydrocarbons, coupled to O-transfer. The Cu2O species can also be produced with N2O, demonstrating their capability for small-molecule activation. The binding and cleavage of O-2 leading to the primary Cu4O2 intermediate and the Cu2O complexes, respectively, is elucidated with a range of solution spectroscopic methods and mass spectrometry. The unique reactivities of these species establish an unprecedented, 100 % atom-economic scenario for the catalytic, copper-mediated monooxygenation of organic substrates, employing both O-atoms of O-2.

About Benzophenone, If you have any questions, you can contact Jurgeleit, R; Grimm-Lebsanft, B; Floser, BM; Teubner, M; Buchenau, S; Senft, L; Hoffmann, J; Naumova, M; Nather, C; Ivanovic-Burmazovic, I; Rubhausen, M; Tuczek, F or concate me.. Recommanded Product: 119-61-9

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Product Details of 119-61-9. Atabekyan, LS; Avakyan, VG; Chibisov, AK; Nuriev, VN; Medvedko, AV; Koshkin, AV; Gromov, SP in [Atabekyan, Levon S.; Avakyan, Vitaly G.; Chibisov, Alexander K.; Nuriev, Vyacheslav N.; Medvedko, Alexey V.; Koshkin, Alexander V.; Gromov, Sergey P.] Russian Acad Sci, FSRC Crystallog & Photon, Photochem Ctr, Novatorov Str 7A-1, Moscow 119421, Russia; [Nuriev, Vyacheslav N.; Medvedko, Alexey V.; Gromov, Sergey P.] Moscow MV Lomonosov State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia published Photoprocesses in & nbsp;bis(15-crown-5)-1,3-distyrylbenzene and its complexes with metal perchlorates in 2021.0, Cited 25.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9.

Photoprocesses in bis(15-crown-5)-1,3-distyrylbenzene (DSB) and its complexes with barium and lead perchloatewere studied in MeCN by absorption, luminescence, and laser kinetic spectroscopy. The triplet DSB molecules are involved in the degradation of electronic excitation energy, together with fluorescence processes. The most efficient intersystem crossing accompanied by a decrease in the DSB fluorescence quantum yield, occurs for the lead perchlorate complex. Using quantum chemistry methods (DFT and TDDFT), the geometry, structure, and transition energies to the S1 state were calculated for trans- and cis-isomers of DSB in the gas phase and with allowance for the solvent and for 1:1 and 2:2 DSB complexes with barium cation in the ground and excited states. The orbital structures of the 2:2 complexes were calculated by ab initio method, and conclusions were drawn about the possibility of [2 + 2]- photocycloaddition reaction.

Product Details of 119-61-9. About Benzophenone, If you have any questions, you can contact Atabekyan, LS; Avakyan, VG; Chibisov, AK; Nuriev, VN; Medvedko, AV; Koshkin, AV; Gromov, SP or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Recently I am researching about ELECTRON-SPIN POLARIZATION; PAIRS; MAGNETOCONDUCTANCE; RECOMBINATION; ANNIHILATION; RESONANCE; STATES, Saw an article supported by the Ministry of Science and Higher Education of the Russian Federation [FSGU-2020-0003]. Product Details of 119-61-9. Published in SPRINGER in NEW YORK ,Authors: Kucherenko, MG; Penkov, SA. The CAS is 119-61-9. Through research, I have a further understanding and discovery of Benzophenone

The process of spin-selective quenching of a triplet (T) exciton by a fixed spin doublet (D) center in an organic semiconductor nanoparticle (anthracene, tetracene, MEH-PPV) was studied. Random walks of the T-exciton in a spherical nanovolume of a crystal or polymer globule were modeled based on the solution of the Neumann boundary diffusion condition. Time dependences of the spin-nonselective quenching rate of T-excitations were calculated for different values of geometric and diffusion parameters. Taking into account the spin dynamics of T-D-pair reagents allowed calculating magnetic field effects of T-D-quenching rate, which showed a strong influence of the nanoparticles size and initial position of the T-exciton and doublet sink on the absolute value of the effect. The obtained radial dependences of the magnetic field modulation of the quenching efficiency can be approximated by a superposition of two exponents.

About Benzophenone, If you have any questions, you can contact Kucherenko, MG; Penkov, SA or concate me.. Product Details of 119-61-9

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Visible-Spectrum Solar-Light-Mediated Benzylic C-H Oxygenation Using 9,10-Dibromoanthracene As an Initiator WOS:000606840200096 published article about AEROBIC OXIDATION; FUNCTIONALIZATION; ALCOHOLS; CATALYSIS; CUMENE; BONDS; ARYL in [Santra, Sourav K.; Szpilman, Alex M.] Ariel Univ, Dept Chem Sci, IL-4070000 Ariel, Israel in 2021.0, Cited 47.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9. Quality Control of Benzophenone

We report a visible-light-mediated benzylic C-H oxygenation reaction. The reaction is initiated by solar light or the blue LED activation of 9,10-dibromoanthracene in a reaction with oxygen and takes place at ambient temperature and air pressure. Secondary benzylic positions are oxygenated to ketones, while tertiary benzylic carbons are oxygenated to give hydroperoxides. Notably, cumene hydroperoxide is produced in a higher yield and at milder conditions than the currently employed industrial conditions.

Quality Control of Benzophenone. About Benzophenone, If you have any questions, you can contact Santra, SK; Szpilman, AM or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Recently I am researching about ONE-POT SYNTHESIS; NANO-PARTICLES; BIOLOGICAL EVALUATION; EFFICIENT CATALYST; MULTICOMPONENT; OPTIMIZATION; 4H-CHROMENE; COUMARIN; SURFACE; GREEN, Saw an article supported by the Islamic Azad University, Najafabad BranchIslamic Azad University. Published in TAYLOR & FRANCIS LTD in ABINGDON ,Authors: Roudbaraki, SJ; Mansoor, SS; Ghashang, M. The CAS is 99-61-6. Through research, I have a further understanding and discovery of 3-Nitrobenzaldehyde. Recommanded Product: 99-61-6

Here, the synthesis of MgO nanopowders via a simple precipitation method is defined. The morphology, phase identification, particle size distribution and specific surface area of the sample was investigated by FE-SEM, TEM, XRD, DLS, and BET techniques. The structural parameters were determined through XRD pattern. The sample crystallized in a pure cubic phase with the average crystallite size of 55 nm. The micro-strain (epsilon) and dislocation density (delta) of the sample were also calculated to be 0.1153 and 3.306 x 10(-4), respectively. The catalyst has a specific surface area and of 26.7 m(2)g(-1). The catalytic activity of MgO nanopowders was studied in the three-component condensation of aldehydes, 4-hydroxycoumarin, and malononitrile in aqueous media. A range of aromatic aldehydes undergoes the reaction to produce a series of pyrano[3,2-c]chromen derivatives in good yields.

Recommanded Product: 99-61-6. About 3-Nitrobenzaldehyde, If you have any questions, you can contact Roudbaraki, SJ; Mansoor, SS; Ghashang, M or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Reliable Predictions of Benzophenone Singlet-Triplet Transition Rates: A Second-Order Cumulant Approach WOS:000611410000006 published article about BAND SHAPES; ELECTRON-TRANSFER; GENERATING FUNCTION; ABSORPTION SPECTRA; UP-CONVERSION; PRINCIPLE; EXPANSION; STATES; SPIN; RECOMBINATION in [Velardo, Amalia; Landi, Alessandro; Peluso, Andrea] Univ Salerno, Dipartimento Chim & Biol Adolfo Zambelli, I-84084 Fisciano, SA, Italy; [Borrelli, Raffaele] Univ Torino, Dept Agr Forestry & Food Sci, I-10195 Grugliasco, Italy; [Velardo, Amalia] Univ Torino, Dept Chem, I-10125 Turin, Italy in 2021.0, Cited 64.0. Safety of Benzophenone. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

Fermi golden rule and second-order cumulant expansion of the time-dependent density matrix have been used to compute from first principles the rate of intersystem crossing in benzophenone, using minimum-energy geometries and normal modes of vibrations computed at the TDDFT/CAM-B3LYP level. Both approaches yield reliable values of the S-1 decay rate, the latter being almost in quantitative agreement with the results of time-dependent spectroscopic measurements (0.154 ps(-1) observed vs 0.25 ps(-1) predicted). The Fermi golden rule slightly overestimates the decay rate of S-1 state (k(d) = 0.45 ps(-1)) but provides better insights into the chemico-physical parameters, which govern the transition from a thermally equilibrated population of S-1, showing that the indirect mechanism is much faster than the direct one because of the vanishingly small Franck-Condon weighted density of states at Delta E of transition.

About Benzophenone, If you have any questions, you can contact Velardo, A; Landi, A; Borrelli, R; Peluso, A or concate me.. Safety of Benzophenone

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Computed Properties of C13H10O. Authors Foubert, K; Dendooven, E; Theunis, M; Naessens, T; Ivanova, B; Pieters, L; Gilissen, L; Huygens, S; De Borggraeve, W; Lambert, J; Goossens, A; Aerts, O in WILEY published article about in [Foubert, Kenn; Dendooven, Ella; Theunis, Mart; Naessens, Tania; Ivanova, Boryana; Pieters, Luc] Univ Antwerp UA, Dept Pharmaceut Sci, Res Grp Nat Prod & Food Res & Anal NatuRA, Antwerp, Belgium; [Dendooven, Ella; Lambert, Julien; Aerts, Olivier] Univ Hosp Antwerp UZA, Dept Dermatol, Edegem, Belgium; [Dendooven, Ella; Lambert, Julien; Aerts, Olivier] Univ Antwerp, Res Grp Immunol, Infla Med Ctr Excellence, Antwerp, Belgium; [Gilissen, Liesbeth; Huygens, Sara; Goossens, An] Katholieke Univ Leuven, Dept Dermatol, Univ Hosp, Leuven, Belgium; [De Borggraeve, Wim] KU Leuven Chem&Tech, Dept Chem, Leuven, Belgium in 2021.0, Cited 27.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

Background: The reason why patients photosensitized to the drug ketoprofen (KP) may develop severe photoallergic skin reactions to octocrylene (OCT), an organic ultraviolet filter in sunscreens and cosmetics, remains largely unknown. OCT can be synthesized by using unsubstituted benzophenone (BP), a possible human carcinogen. Objectives: To verify if, and to what extent, BP residues are present in OCT-containing consumer products. Methods: The raw material of OCT and 39 skincare products, of which 28 contain OCT, were chemically analysed for the presence of BP by means of liquid chromatography. Results: In the OCT raw material and in all 28 OCT-containing products the presence of BP could be demonstrated, mostly in concentrations above 10 ppm (0.001%), whereas a majority of OCT-free products (8/11, 73%) did not contain BP. Moreover, BP concentrations significantly increased, in a time- and temperature-dependent manner, likely due to the additional degradation of OCT. Conclusion: Photoallergic contact dermatitis from OCT in patients photosensitized to KP might rely on residual BP impurities. Toxicological and ecological studies that evaluate the safety of OCT might also need to consider the concomitant presence of BP.

Computed Properties of C13H10O. About Benzophenone, If you have any questions, you can contact Foubert, K; Dendooven, E; Theunis, M; Naessens, T; Ivanova, B; Pieters, L; Gilissen, L; Huygens, S; De Borggraeve, W; Lambert, J; Goossens, A; Aerts, O or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Safety of 3-Nitrobenzaldehyde. Authors Luo, J; Ying, LF; Zhang, F; Zhou, Z; Zhang, YG in AMER CHEMICAL SOC published article about in [Luo, Jian; Ying, Lv-Fang; Zhang, Feng] Ningbo Hangzhou Bay Hosp, Dept Orthopaed, Ningbo 315336, Zhejiang, Peoples R China; [Zhou, Ze; Zhang, Yan-Guo] Qiqihar Med Univ, Dept Neurosurg, Qiqihar 161006, Heilongjiang, Peoples R China in 2021.0, Cited 31.0. The Name is 3-Nitrobenzaldehyde. Through research, I have a further understanding and discovery of 99-61-6

A novel metal-organic framework (MOF) has been produced via Cu(NO3)(2)center dot 6H(2)O reaction with 3-(1H-tetrazol-5-yl)pyridine (HL) in water, and its chemical formula is {[(Cu-(L)(2)(H2O)(2)] (H2O)(8))(n)}. Due to its high density of coordinately unsaturated sites along with large one-dimensional (1D) hexagonal channels, the activated complex 1 (1a) was explored as the solvent-free heterogeneous catalyst for cyanosilylation under mind conditions. The inhibitory function of compound 1a against the survival rate of OS-732 osteosarcoma cells was evaluated via Cell Counting Kit-8 (CCK-8) detection kit. Furthermore, the Annexin V-FITC/PI detection kit and the active oxygen (ROS) detection kit was carried out to determine the cell apoptosis levels and the ROS accumulation in OS-732 osteosarcoma cells after treatment by compound 1a.

Safety of 3-Nitrobenzaldehyde. About 3-Nitrobenzaldehyde, If you have any questions, you can contact Luo, J; Ying, LF; Zhang, F; Zhou, Z; Zhang, YG or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

I found the field of Environmental Sciences & Ecology very interesting. Saw the article Effect of meteorological factors on scarlet fever incidence in Guangzhou City, Southern China, 2006-2017 published in 2019. Computed Properties of C10H12O3, Reprint Addresses Li, TG (corresponding author), Guangzhou Ctr Dis Control & Prevent, Baiyun Dist Qi Rd, Guangzhou 510440, Guangdong, Peoples R China.. The CAS is 104-21-2. Through research, I have a further understanding and discovery of 4-Methoxybenzyl acetate

Objective: To explore the relationship between meteorological factors and scarlet fever incidence from 2006 to 2017 in Guangzhou, the largest subtropical city of Southern China, and assist public health prevention and control measures. Methods: Data for weekly scarlet fever incidence and meteorological variables from 2006 to 2017 in Guangzhou were collected from the National Notifiable Disease Report System (NNDRS) and the Guangzhou Meteorological Bureau (GZMB). Distributed lag nonlinear models (DLNMs) were conducted to estimate the effect of meteorological factors on weekly scarlet fever incidence in Guangzhou. Results: We observed nonlinear effects of temperature, relative humidity, and wind velocity. The risk was the highest when the weekly mean temperature was 31 degrees C during lag week 14, yielding a relative risk (RR) of 1.48 (95% CI: 1.01-2.17). When relative humidity was 43.5% during lag week 0, the RR was 1.49 (95% CI: 1.04-2.12); the highest RR (1.55, 95% CI: 1.20-1.99) was reached when relative humidity was 93.5% during lag week 20. When wind velocity was 4.4 m/s during lag week 13, the RR was highest at 3.41 (95% CI: 1.57-7.44). Positive correlations were observed among weekly temperature ranges and atmospheric pressure with scarlet fever incidence, while a negative correlation was detected with aggregate rainfall. The cumulative extreme effect of meteorological variables on scarlet fever incidence was statistically significant, except for the high effect of wind velocity. Conclusion: Weekly mean temperature, relative humidity, and wind velocity had double-trough effects on scarlet fever incidence; high weekly temperature range, high atmospheric pressure, and low aggregate rain fall were risk factors for scarlet fever morbidity. Our findings provided preliminary, but fundamental, information that may be useful for a better understanding of epidemic trends of scarlet fever and for developing an early warning system. Laboratory surveillance for scarlet fever should be strengthened in the future. (C) 2019 Elsevier B.V. All rights reserved.

About 4-Methoxybenzyl acetate, If you have any questions, you can contact Lu, JY; Chen, ZQ; Liu, YH; Liu, WH; Ma, Y; Li, TG; Zhang, ZB; Yang, ZC or concate me.. Computed Properties of C10H12O3

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem