Month: November 2021

An article Robust and efficient hydrogenation of carbonyl compounds catalysed by mixed donor Mn(I) pincer complexes WOS:000665625900009 published article about MANGANESE COMPLEXES; COORDINATION CHEMISTRY; LIGANDS; BEARING; AMINES; AMIDES; CYCLOTRIMERIZATION; (DE)HYDROGENATION; REACTIVITY; ALCOHOLS in [Yang, Wenjun; van Schendel, Robin K. A.; Filonenko, Georgy A.; Pidko, Evgeny A.] Delft Univ Technol, Fac Appl Sci, Dept Chem Engn, Inorgan Syst Engn Grp, Maasweg 9, NL-2629 HZ Delft, Netherlands; [Chernyshov, Ivan Yu] ITMO Univ, TheoMAT Grp, ChemBio Cluster, Lomonosova 9, St Petersburg 191002, Russia; [Weber, Manuela; Muller, Christian] Free Univ Berlin, Inst Chem & Biochem, Fabeckstr 34-36, D-14195 Berlin, Germany in 2021.0, Cited 48.0. SDS of cas: 119-61-9. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

Any catalyst should be efficient and stable to be implemented in practice. This requirement is particularly valid for manganese hydrogenation catalysts. While representing a more sustainable alternative to conventional noble metal-based systems, manganese hydrogenation catalysts are prone to degrade under catalytic conditions once operation temperatures are high. Herein, we report a highly efficient Mn(I)-CNP pre-catalyst which gives rise to the excellent productivity (TOF degrees up to 41 000h(-1)) and stability (TON up to 200 000) in hydrogenation catalysis. This system enables near-quantitative hydrogenation of ketones, imines, aldehydes and formate esters at the catalyst loadings as low as 5-200 p.p.m. Our analysis points to the crucial role of the catalyst activation step for the catalytic performance and stability of the system. While conventional activation employing alkoxide bases can ultimately provide catalytically competent species under hydrogen atmosphere, activation of Mn(I) pre-catalyst with hydride donor promoters, e.g. KHBEt3, dramatically improves catalytic performance of the system and eliminates induction times associated with slow catalyst activation. Manganese-based hydrogenation catalysts are sensitive to high temperatures and may degrade under industrially relevant conditions. Here, the authors report a highly efficient manganese pincer pre-catalyst displaying high TOF values (up to 41 000 h(-1)) and stability (TON up to 200 000) at loadings as low as 5-200 ppm.

SDS of cas: 119-61-9. Bye, fridends, I hope you can learn more about C13H10O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Thiomorpholine – Wikipedia,
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Safety of Benzophenone. Authors Tiessen, N; Kessler, M; Neumann, B; Stammler, HG; Hoge, B in WILEY-V C H VERLAG GMBH published article about in [Tiessen, Natalia; Kessler, Mira; Neumann, Beate; Stammler, Hans-Georg; Hoge, Berthold] Univ Bielefeld, Fak Chem, Ctr Mol Mat, Univ Str 25, D-33615 Bielefeld, Germany in 2021.0, Cited 73.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9

According to a first view on the geometrical and electronic structure of the tris(pentafluoroethyl)silanide, this anion appears as a Lewis base. Quantum chemical calculations on perfluoroalkylated silanides show significantly lower HOMO and LUMO energy levels in comparison to their non-fluorinated counterparts, which implies reduced Lewis basicity and increased Lewis acidity of the [Si(C2F5)(3)](-) ion. With these findings and a HOMO-LUMO gap of 4.80 eV similar to N-heterocyclic silylenes (NHSis), perfluoroalkyl silanides are predestined to exhibit Lewis-amphoteric character similar to silylenes. Deprotonation of Si(C2F5)(3)H with sterically demanding phosphazene bases afforded thermally stable phosphazenium salts of the [Si(C2F5)(3)](-) anion, which add to benzaldehyde, benzophenone, CS2, and CO2 in various manners. This behavior also mirrors the reactivity of silylenes towards ketones as well as heterocumulenes and is rationalized by Lewis amphotericity being inherent in these silanides.

Welcome to talk about 119-61-9, If you have any questions, you can contact Tiessen, N; Kessler, M; Neumann, B; Stammler, HG; Hoge, B or send Email.. Safety of Benzophenone

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Thiomorpholine – Wikipedia,
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Product Details of 88-68-6. I found the field of Chemistry; Engineering very interesting. Saw the article Polyacrylonitrile fiber with strongly acidic electrostatic microenvironment: Highly efficient and recyclable heterogeneous catalyst for the synthesis of heterocyclic compounds published in 2019, Reprint Addresses Ma, N; Tao, ML (corresponding author), Tianjin Univ, Sch Sci, Dept Chem, Tianjin 300072, Peoples R China.. The CAS is 88-68-6. Through research, I have a further understanding and discovery of 2-Aminobenzamide.

Four categories of sulfonic acid functionalized fiber catalysts with different surface microenvironments were synthesized by covalent grafting using polyacrylonitrile fiber (PANF) as the support. After the effect of acid structure on catalytic activity has been investigated by Friedlander reaction, PAN(EOS)F was chosen for the synthesis of quinolines and coumarin derivatives with high yields and extensive substrate scope (51 examples) in ethanol or water. The effect of electrostatic microenvironment and solvent has been discussed, and a release-catch-release-catch catalytic pattern was proposed accordingly. PAN(EOS)F can be easily recycled for 20 times without any decrease of catalytic activity. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Product Details of 88-68-6. Welcome to talk about 88-68-6, If you have any questions, you can contact Xiao, J; Xu, G; Wang, L; Li, PY; Zhang, WQ; Ma, N; Tao, ML or send Email.

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Thiomorpholine – Wikipedia,
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COA of Formula: C7H8N2O. Recently I am researching about N-FORMYLATION; FACILE SYNTHESIS; DOPED TIO2; METAL-ION; NANOCOMPOSITE; NANOPARTICLES; FABRICATION; TITANIA; ALDEHYDES; REMOVAL, Saw an article supported by the CHRIST (Deemed to be University) [MRPDSC-1722]; DST-SERB Govt of India, New Delhi [SB/FT/CS-083/2012]. Published in SPRINGER in DORDRECHT ,Authors: Warrier, VG; Nizam, A; Nagaraju, G. The CAS is 88-68-6. Through research, I have a further understanding and discovery of 2-Aminobenzamide

Facile green synthesis of BiOCl-TiO2 was done using combustion technique by Ixora coccinea leaf extract as fuel source. The said material was characterized using XRD, SEM, EDX, HRTEM, SAED, FTIR, and UV-DRS. The particle size was found to be approximately 60 nm and a crystallite size of 0.3 nm from TEM. The photocatalytic activity of the material was found out using photoluminescence studies, dye degradation and photocatalytic organic conversion. The material showed excellent dye degradation capacity for methylene blue with 80% of the dye degraded under 3 hrs. The stabilisation of electron-hole pair by the heterostructure gave it the ability to perform easy degradation. The degradation kinetics have also been studied. It also showed an excellent organic conversion property with formylation yield reaching up to 96% and total conversion of the reactant molecule. The material is a potent photocatalyst due to its great efficiency and can have a remarkable role in the synthesis of important organic molecules and detoxification of environment.Graphical AbstractThe heterostructure catalyses the conversion of amine to amides and mineralizes methylene blue under visible light condition.

COA of Formula: C7H8N2O. Welcome to talk about 88-68-6, If you have any questions, you can contact Warrier, VG; Nizam, A; Nagaraju, G or send Email.

Reference:
Thiomorpholine – Wikipedia,
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I found the field of Chemistry; Environmental Sciences & Ecology very interesting. Saw the article Hierarchically porous Bronsted acidic ionic liquid functionalized nitrogen-doped carbons for pyrolysis biofuel upgrading via esterification of acetic acid with high boiling point alcohols published in 2019. Safety of 4-Methoxybenzyl acetate, Reprint Addresses Guo, YH; Song, DY (corresponding author), Northeast Normal Univ, Sch Environm, Changchun 130117, Jilin, Peoples R China.. The CAS is 104-21-2. Through research, I have a further understanding and discovery of 4-Methoxybenzyl acetate

Bronsted acidic ionic liquid (BAIL) functionalized hierarchically porous nitrogen-doped carbons (NHPCs) with interesting 3D interconnected macro-meso-microporous structure are successfully prepared by chemical bonding -[C-3][SO3CF3-] (C-3 = PrSO3H) groups throughout the NHPC supports that are obtained via a single step CaCO3 nanoparticle-directed nanocasting approach combined with K2C2O4 chemical activation and urea/melamine self-activation during the process of carbonization of glucose and urea/melamine. By changing initial urea-to-glucose weight ratio in the preparation systems, the macro/meso/micropore proportion of the resulting GU-[C3N] [SO3CF3] catalysts are well-adjusted. The morphological characteristics, porosity properties and chemical structure of the prepared catalysts are well-characterized so that the contribution of the synergistic effect of CaCO3 nanoparticle and K2C2O4 to the formation of hierarchically porous structure is revealed. Owing to super strong Bronsted acidity and unique hierarchically porous structure of the catalysts, they exhibit excellent heterogeneous acid catalytic activity in raw pyrolysis biofuel upgrading via esterification of acetic acid with high boiling point benzyl alcohol or 4-methoxybenzyl alcohol in toluene media, and therefore high acetic acid removal efficiency and efficient production of value-added benzyl acetate or 4-methoxybenzyl acetate are obtained simultaneously. The catalysts also show good reusability in target reactions, attributing to chemical interactions between BAILs and NHPC supports.

Welcome to talk about 104-21-2, If you have any questions, you can contact Zhang, QQ; Zhang, CY; Sun, YN; Guo, YH; Song, DY or send Email.. Safety of 4-Methoxybenzyl acetate

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

In 2021 RSC ADV published article about N-PROPYLAMMONIUM PERRUTHENATE; ALCOHOLS in [Mirbagheri, Reza; Elhamifar, Dawood; Hajati, Shaaker] Univ Yasuj, Dept Chem, Yasuj 7591874831, Iran; [Hajati, Shaaker] Mat & Energy Res Ctr MERC, Dept Semicond, POB 31787-316, Tehran, Iran in 2021, Cited 91. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9. COA of Formula: C13H10O

A novel method was used to prepare a magnetic phenylene-based periodic mesoporous organosilica nanocomposite with yolk-shell structure (Fe3O4@YSPMO). The Fe3O4@YSPMO nanomaterial was prepared by using easily accessible pluronic-P123 and cetyltrimethylammonium bromide (CTAB) surfactants under basic conditions. This material was employed for effective immobilization of potassium perruthenate to prepare an Fe3O4@YSPMO@Ru nanocatalyst for the aerobic oxidation of alcohols. The physiochemical properties of the designed Fe3O4@YSPMO@Ru nanocomposite were studied using PXRD, FT-IR, TGA, SEM, TEM, ICP, VSM and XPS analyses. Fe3O4@YSPMO@Ru was effectively employed as a highly recoverable nanocatalyst in the selective aerobic oxidation of alcohols.

COA of Formula: C13H10O. Welcome to talk about 119-61-9, If you have any questions, you can contact Mirbagheri, R; Elhamifar, D; Hajati, S or send Email.

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

Category: thiomorpholine. I found the field of Chemistry; Engineering; Materials Science very interesting. Saw the article Microwave assisted synthesis and photophysical properties of blue emissive 2-amino-3-carboxamide-1,1 ‘-biaryls and 4-(arylamino)-[1,1 ‘-biphenyl]-3-carboxamides via Suzuki and Chan-Evans-Lam coupling published in 2020, Reprint Addresses Kannadasan, S (corresponding author), Vellore Inst Technol, Sch Adv Sci, Dept Chem, Vellore 632014, Tamil Nadu, India.; Shanmugam, P (corresponding author), CSIR, CLRI, Organ & Bioorgan Chem Div, Chennai 600020, Tamil Nadu, India.. The CAS is 88-68-6. Through research, I have a further understanding and discovery of 2-Aminobenzamide.

An efficient microwave assisted synthesis of 2-amino-3-carboxamide-1,1′-biaryls derivatives 4a-p and terphenyl derivative 5a from 2-amino-5-iodobenzamide 2a, 2-amino-3,5-diiodobenzamide 2b and (het)aryl boronic acids via Suzuki coupling has been achieved. Synthetic utility of the product 4-amino-4′-cyano-[1,1′-biphenyl]-3-carboxamide 4j has been demonstrated for the synthesis of 4-(aryl amino)-[1,1′-biphenyl]-3-carboxamide derivatiyes 10a-c via Chan-Evans-Lam coupling reaction. Furthermore, 4-(4′-oxo-3′, 4′-dihydro-1’H-spirof[fluorene-9,2′-quinazolin]-6′-yl)benzonitrile 12a was obtained from biaryl derivative 4j and fluorenone 11a and 6(4-methoxyphenyl)2-(ferrocenyl) quinazolin-4(3H)-one 12b from biaryl derivative 4k and ferrocenealdehyde lib using phosphotungstic acid as green catalyst and solvent free microwave irradiation condition. Remarkably, all the synthesized 2-amino-3-carboxamide-1,1′-biaryls and 4-(aryl amino)-[1,1′-biphenyl]-3-carboxamide derivatives 4a-p showed luminescence in the blue region with large Stokes shift. Significantly, 2-amino-3-carboxamide-1,1’-biaryls 4d and 4j showed high fluorescence quantum yields (Phi(f)) 0.54 and 0.84, respectively.

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

Quality Control of 4-Methoxybenzyl acetate. I found the field of Radiology, Nuclear Medicine & Medical Imaging very interesting. Saw the article Risk factors for nonvisualization of the sentinel lymph node on lymphoscintigraphy in breast cancer patients published in 2021, Reprint Addresses Chahid, Y (corresponding author), Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Radiol & Nucl Med, Amsterdam, Netherlands.; Chahid, Y (corresponding author), Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Clin Pharm, Amsterdam, Netherlands.. The CAS is 104-21-2. Through research, I have a further understanding and discovery of 4-Methoxybenzyl acetate.

Background Accurate sentinel lymph node (SLN) staging is essential for both prognosis and treatment in patients with breast cancer. However, the preoperative lymphoscintigraphy may fail to visualize the SLN in some patients. The purpose of this retrospective study was to identify risk factors associated with SLN nonvisualization on lymphoscintigraphy. For this single-center retrospective study, all data of lymphoscintigraphy of SLN procedures from March 2011 to April 2021 were collected and reviewed from the Amsterdam UMC database. Results A total of 1886 SLN procedures were included in this study. The SLN nonvisualization rate was 25.1% on lymphoscintigraphy at 4 h post-injection. The SLN nonvisualization rate decreased to 9.4% after reinjection. Multivariable analysis showed that age >= 70 years (P < 0.001; OR: 2.27; 95% CI: 1.46-3.53), BMI >= 30 kg/m(2) (P = 0.031; OR: 1.48; 95% CI: 1.04-2.12) and nonpalpable tumors (P = 0.004; OR: 1.54; 95% CI: 1.15-2.07) were independent predictors of SLN nonvisualization. Tumor location, brand of radiopharmaceutical, injected dose and volume, experience of preparer and administrator were not associated with SLN nonvisualization. None of the patient, tumor or tracer characteristics were associated with SLN nonvisualization after radiotracer reinjection. Conclusions This study shows that risk factors for SLN nonvisualization in breast cancer patients during preoperative lymphoscintigraphy are age >= 70 years, BMI >= 30 kg/m(2) and nonpalpable tumors. Our results support the notion that SLN lymphoscintigraphy is a very robust technique that does not depend on the experience of the preparer or administrator of the radiotracer.

Quality Control of 4-Methoxybenzyl acetate. Welcome to talk about 104-21-2, If you have any questions, you can contact Chahid, Y; Qiu, XB; van de Garde, EMW; Verberne, HJ; Booij, J or send Email.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Synthesis, Characterisation, and Determination of Physical Properties of New Two-Protonic Acid Ionic Liquid and its Catalytic Application in the Esterification WOS:000563095100001 published article about VITAMIN-E in [Shahnavaz, Zohreh; Zaharani, Lia; Khaligh, Nader Ghaffari; Johan, Mohd Rafie] Univ Malaya, Inst Postgrad Studies, Nanotechnol & Catalysis Res Ctr, 3rd Floor,Block A, Kuala Lumpur 50603, Malaysia; [Mihankhah, Taraneh] Iran Univ Sci & Technol, Sch Civil Engn, Dept Water & Environm Engn, Environm Res Lab, Tehran 16765163, Iran in 2021, Cited 35. The Name is 4-Methoxybenzyl acetate. Through research, I have a further understanding and discovery of 104-21-2. Application In Synthesis of 4-Methoxybenzyl acetate

A new ionic liquid was synthesised, and its chemical structure was elucidated by FT-IR, 1D NMR, 2D NMR, and mass analyses. Some physical properties, thermal behaviour, and thermal stability of this ionic liquid were investigated. The formation of a two-protonic acid salt namely 4,4′-trimethylene-N,N’-dipiperidinium sulfate instead of 4,4′-trimethylene-N,N’-dipiperidinium hydrogensulfate was evidenced by NMR analyses. The catalytic activity of this ionic liquid was demonstrated in the esterification reaction of n-butanol and glacial acetic acid under different conditions. The desired acetate was obtained in 62-88% yield without using a Dean-Stark apparatus under optimal conditions of 10 mol-% of the ionic liquid, an alcohol to glacial acetic acid mole ratio of 1.3 : 1.0, a temperature of 75-100 degrees C, and a reaction time of 4 h. alpha-Tocopherol (alpha-TCP), a highly efficient form of vitamin E, was also treated with glacial acetic acid in the presence of the ionic liquid, and O-acetyl-alpha-tocopherol (Ac-TCP) was obtained in 88.4% yield. The separation of esters was conducted during workup without the utilisation of high-cost column chromatography. The residue and ionic liquid were used in subsequent runs after the extraction of desired products. The ionic liquid exhibited high catalytic activity even after five runs with no significant change in its chemical structure and catalytic efficiency.

Application In Synthesis of 4-Methoxybenzyl acetate. Welcome to talk about 104-21-2, If you have any questions, you can contact Shahnavaz, Z; Zaharani, L; Khaligh, NG; Mihankhah, T; Johan, MR or send Email.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

An article Manganese-Catalyzed Hydrogenation of Ketones under Mild and Base-free Conditions WOS:000651063700024 published article about MOLECULAR-ORBITAL METHODS; GAUSSIAN-TYPE BASIS; ENANTIOSELECTIVE HYDROGENATION; EQUILIBRIUM GEOMETRIES; MN(I) COMPLEXES; AB-INITIO; PSEUDOPOTENTIALS; APPROXIMATION; EFFICIENT; ACCURACY in [Weber, Stefan; Bruenig, Julian; Kirchner, Karl] Vienna Univ Technol, Inst Appl Synthet Chem, A-1060 Vienna, Austria; [Veiros, Luis F.] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal; [Veiros, Luis F.] Univ Lisbon, Dept Engn, P-1049001 Lisbon, Portugal in 2021.0, Cited 73.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9. SDS of cas: 119-61-9

In this paper, several Mn(I) complexes were applied as catalysts for the homogeneous hydrogenation of ketones. The most active precatalyst is the bench-stable alkyl bisphosphine Mn(I) complexfac-[Mn(dippe) (CO)(3)(CH2CH2CH3)]. The reaction proceeds at room temperature under base-free conditions with a catalyst loading of 3 mol % and a hydrogen pressure of 10 bar. A temperature-dependent selectivity for the reduction of alpha,beta-unsaturated carbonyls was observed. At room temperature, the carbonyl group was selectively hydrogenated, while the C=C bond stayed intact. At 60 degrees C, fully saturated systems were obtained. A plausible mechanism based on DFT calculations which involves an inner-sphere hydride transfer is proposed.

Bye, fridends, I hope you can learn more about C13H10O, If you have any questions, you can browse other blog as well. See you lster.. SDS of cas: 119-61-9

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