Tag: 100-200

Formica, Michele; Sorin, Geoffroy; Farley, Alistair J. M.; Diaz, Jesus; Paton, Robert S.; Dixon, Darren J. published an article in 2018, the title of the article was Bifunctional iminophosphorane catalysed enantioselective sulfa-Michael addition of alkyl thiols to alkenyl benzimidazoles.Formula: C7H6F3NO And the article contains the following content:

The first enantioselective sulfa-Michael addition of alkyl thiols to alkenyl benzimidazoles, enabled by a bifunctional iminophosphorane (BIMP) organocatalyst, was described. The iminophosphorane moiety of the catalyst provided the required basicity to deprotonate the thiol nucleophile while the chiral scaffold and H-bond donor control facial selectivity. The reaction was broad in scope with respect to the thiol and benzimidazole reaction partners with the reaction proceeding in up to 98% yield and 96 : 4 er. The experimental process involved the reaction of (6-(Trifluoromethyl)pyridin-3-yl)methanol(cas: 386704-04-7).Formula: C7H6F3NO

The Article related to alkenyl benzimidazole alkanethiol iminophosphorane organocatalyst enantioselective sulfa michael addition, alkylthio alkyl benzimidazole preparation, Aliphatic Compounds: Ethers and Sulfides and other aspects.Formula: C7H6F3NO

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On October 12, 2020, Wang, Yue; Zhao, Xueqi; Yu, Zhi; Xu, Zhangrun; Zhao, Bing; Ozaki, Yukihiro published an article.COA of Formula: C8H9NO3 The title of the article was A chiral-label-free SERS strategy for the synchronous chiral discrimination and identification of small aromatic molecules. And the article contained the following:

A versatile and robust chiral discrimination strategy for small aromatic compounds is of significant importance in multidisciplinary fields. However, most current methods lack either the sufficient sensitivity for recognizing the chirality of the target mols. or their mol. specificity information. We have developed a versatile and chiral-label-free surface-enhanced Raman scattering (SERS)-based chiral discrimination sensing system for small aromatic mols., where the mol. structural specificity and enantioselectivity can be given synchronously in a single SERS spectrum. More than 10 types of chiral aromatic mols. were successfully identified by using this system. This work has enormous potential for recognizing chiral products effectively in sophisticated systems, especially in the fields of chiral synthesis and chiral catalysis. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).COA of Formula: C8H9NO3

The Article related to sers synchronous chiral discrimination aromatic compound, sers, charge transfer, chiral discrimination, small aromatic molecules, Organic Analytical Chemistry: Detections and other aspects.COA of Formula: C8H9NO3

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On February 24, 2022, Brix, Ann Cathrin; Dreyer, Maik; Koul, Adarsh; Krebs, Moritz; Rabe, Anna; Hagemann, Ulrich; Varhade, Swapnil; Andronescu, Corina; Behrens, Malte; Schuhmann, Wolfgang; Morales, Dulce M. published an article.Category: alcohols-buliding-blocks The title of the article was Structure-Performance Relationship of LaFe1-xCoxO3 Electrocatalysts for Oxygen Evolution, Isopropanol Oxidation, and Glycerol Oxidation. And the article contained the following:

Mitigating high energy costs related to sustainable H2 production via water electrolysis is important to make this process com. viable. Possible approaches are the investigation of low-cost, highly active oxygen evolution reaction (OER) catalysts and the exploration of alternative anode reactions, such as the electrocatalytic isopropanol oxidation reaction (iPOR) or the glycerol oxidation reaction (GOR), offering the possibility of simultaneously lowering the anodic overpotential and generating value-added products. A suitable class of catalysts are non-noble metal-based perovskites with the general formula ABO3, featuring rare-earth metal cations at the A- and transition metals at the B-site. We synthesized a series of LaFe1-xCoxO3 materials with x = 0-0.70 by automated co-precipitation at constant pH and subsequent calcination at 800°C. X-ray diffraction studies revealed that the phase purity was preserved in samples with x≤0.3. The activity towards the OER, iPOR, and GOR was investigated by rotating disk electrode voltammetry, showing a relation between structure and metal composition with the activity trends observed for the three reactions. Addnl., GOR product anal. via high-performance liquid chromatog. (HPLC) was conducted after 24 and 48 h electrolysis in a circular flow-through cell setup, pointing out a trade-off between activity and selectivity. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Category: alcohols-buliding-blocks

The Article related to lanthanum iron cobalt oxide isopropanol glycerol oxidation oer, Electrochemistry: Electrochemical Theory and other aspects.Category: alcohols-buliding-blocks

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On June 26, 2003, Watanabe, Yukiyoshi; Yamazaki, Daiei; Otsu, Yuichi; Shibuya, Katsuhiko published a patent.COA of Formula: C7H7FS The title of the patent was Preparation of isothiazolylaminocarbonyl derivatives as insecticides. And the patent contained the following:

The isothiazolylaminocarbonyl derivatives I (R = halo, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, Ph, phenoxy, cyano, nitro or alkoxycarbony; X = NH, O or S; R1 = H or alkyl; a = 0-5; m = 0 or 1; n = 0 or 1) are prepared as insecticides. The experimental process involved the reaction of (2-Fluorophenyl)methanethiol(cas: 72364-46-6).COA of Formula: C7H7FS

The Article related to isothiazolylaminocarbonyl derivative preparation insecticide, Agrochemical Bioregulators: Invertebrate and other aspects.COA of Formula: C7H7FS

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Maslowska, Joanna; Bazylak, Grzegorz published an article in 1991, the title of the article was Separation of amino alcohols by HPLC with binary mobile phase containing nickel(II) chelate additive.Electric Literature of 2160-93-2 And the article contains the following content:

A system of coordinatively unsaturated metal complexes is introduced as a mobile phase modifier for high performance liquid chromatog. (HPLC) of amino alcs. Unlike previous ionic metal additives, Ni(aaec) (I) is a neutral, square planar complex capable of producing highly selective and effective separations of polar compounds Interaction with the metal complex and the subsequent increase in solute retention is shown to be dependent on steric, dipole and solvation effects. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Electric Literature of 2160-93-2

The Article related to hplc separation amino alc, nickel chelate hplc amino alc, Aliphatic Compounds: Alcohols and Thiols and other aspects.Electric Literature of 2160-93-2

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Langley, Stuart K.; Wielechowski, Daniel P.; Moubaraki, Boujemaa; Murray, Keith S. published an article in 2016, the title of the article was Enhancing the magnetic blocking temperature and magnetic coercivity of {CrIII2LnIII2} single-molecule magnets via bridging ligand modification.Product Details of 2160-93-2 And the article contains the following content:

Replacing bridging benzoate ligands with 2-chloro-4,5-fluorobenzoate in a family of {CrIII2LnIII2} (Ln = Tb, Dy and Ho) single-mol. magnets result in significant improvements in magnetic relaxation time, magnetic hysteresis blocking temperature and magnetic coercivity. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Product Details of 2160-93-2

The Article related to chromium rare earth coordination single mol magnet, Magnetic Phenomena: Magnetic Properties and other aspects.Product Details of 2160-93-2

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On August 31, 2022, Qian, Heying; Guo, Huimin; Zhang, Xiao; Liu, Mingzhu; Zhao, Guodong; Xu, Anying; Li, Gang published an article.Electric Literature of 32462-30-9 The title of the article was Metabolic characterization of hemolymph in Bombyx mori varieties after Bombyx mori nucleopolyhedrovirus infection by GC-MS-based metabolite profiling. And the article contained the following:

The “Huakang 2” silkworm variety, bred by the Sericulture Research Institute of the Chinese Academy of Agricultural Sciences, is highly resistant to Bombyx mori nucleopolyhedrovirus (BmNPV) and effectively solves the issue of frequent Bombyx mori nuclear polyhedrosis in sericultural production The mol. mechanism of its resistance to BmNPV, however, is still unknown. The purpose of the present study was therefore to identify these anti-BmNPV mechanisms by using metabolomics in combination with transcriptomics after s.c. injection of budded virus (BV) with high concentrations of BmNPV from specimens of the Baiyu N variety (which is highly resistant to BmNPV) and the Baiyu variety (which is sensitive to BmNPV). A total of 375 differential metabolites were identified, which mainly included sugars, acids, amines, alcs., glycosides, and other small mols. KEGG enrichment anal. and functional clustering of differential metabolites identified possible metabolic pathways, including tyrosine metabolism, oxidative phosphorylation, and alanine, aspartate, and glutamate metabolism The differentially expressed genes (DEGs) identified by transcriptome anal. were annotated in KEGG. Association anal. showed that the metabolic pathways of different silkworm varieties are affected differently by BmNPV infection, triggering a series of complex physiol. and biochem. changes in the organism. In particular, oxidative phosphorylation might be an essential pathway involved in regulation of disease resistance. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Electric Literature of 32462-30-9

The Article related to bmnpv infection hemolymph oxidative phosphorylation gc ms, Nonmammalian Biochemistry: Metabolism and other aspects.Electric Literature of 32462-30-9

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On August 23, 2022, Tsvetanova, Martina; Syromyatnikov, Alexey G.; van der Meer, Thomas; van Houselt, Arie; Zandvliet, Harold J. W.; Klavsyuk, Andrey L.; Sotthewes, Kai published an article.Electric Literature of 143-10-2 The title of the article was Self-assembled decanethiolate monolayers on Au(001): Expanding family of known phases. And the article contained the following:

We have studied decanethiolate self-assembled monolayers on the Au(001) surface. Planar and striped phases, as well as disordered regions, have formed after exposing the Au surface to a decanethiol solution The planar phases that we observe have a hexagonal symmetry and have not been previously reported for thiols on the Au(001) surface and have lower coverage compared to that of the other known thiol planar phases such as the square α phase. The striped phases that we observe are similar to the previously reported β phase but still feature unit cells that cannot be modeled as the archetype, and the coverage is also somewhat lower. The disordered decanethiolate regions are more dynamic compared to the ordered phases, confirmed with I(t) spectroscopy. This suggests that in these regions the coverage is too low in order to form ordered decanethiolate phases. Our findings contribute to the growing family of possible decanethiol formations on the Au(001) surface, for which still less is known compared to the extensive overview present for the Au(111) surface. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).Electric Literature of 143-10-2

The Article related to self assembled monolayer au surface, Surface Chemistry and Colloids: Other and other aspects.Electric Literature of 143-10-2

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Li, Zhihua; Zhao, Chi; Dong, Ling; Huan, Yu; Yoshimoto, Miwa; Zhu, Yongqing; Tada, Ipputa; Wang, Xiaohang; Zhao, Shuang; Zhang, Fengju; Li, Liang; Arita, Masanori published an article in 2022, the title of the article was Comprehensive Metabolomic Comparison of Five Cereal Vinegars Using Non-Targeted and Chemical Isotope Labeling LC-MS Analysis.Name: 2,3-Dihydroxypropanoic acid And the article contains the following content:

Vinegar is used as an acidic condiment and preservative worldwide. In Asia, various black vinegars are made from different combinations of grains, such as Sichuan bran vinegar (SBV), Shanxi aged vinegar (SAV), Zhenjiang aromatic vinegar (ZAV), and Fujian Monascus vinegar (FMV) in China and Ehime black vinegar in Japan (JBV). Understanding the chem. compositions of different vinegars can provide information about nutritional values and the quality of the taste. This study investigated the vinegar metabolome using a combination of GC-MS, conventional LC-MS, and chem. isotope labeling LC-MS. Different types of vinegar contained different metabolites and concentrations Amino acids and organic acids were found to be the main components. Tetrahydroharman-3-carboxylic acid and harmalan were identified first in vinegar. Various diketopiperazines and linear dipeptides contributing to different taste effects were also detected first in vinegar. Dipeptides, 3-phenyllactic acid, and tyrosine were found to be potential metabolic markers for differentiating vinegars. The differently expressed pathway between Chinese and Japanese vinegar was tryptophan metabolism, while the main difference within Chinese vinegars was aminoacyl-tRNA biosynthesis metabolism These results not only give insights into the metabolites in famous types of cereal vinegar but also provide valuable knowledge for making vinegar with desirable health characteristics. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Name: 2,3-Dihydroxypropanoic acid

The Article related to cereal vinegar metabolomics non target chem isotope, gc-ms, uhplc-qtof-ms, cereal vinegar, chemical isotope labeling, metabolomics, small peptides, Biochemical Methods: Chromatographic and other aspects.Name: 2,3-Dihydroxypropanoic acid

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On November 30, 2018, Guo, Heying; Sun, Yu; Niu, Xiaoying; Wei, Nannan; Pan, Congjie; Wang, Guoxiu; Zhang, Huige; Chen, Hongli; Yi, Tao; Chen, Xingguo published an article.Category: alcohols-buliding-blocks The title of the article was The preparation of poly-levodopa coated capillary column for capillary electrochromatography enantioseparation. And the article contained the following:

Levodopa (L-DOPA) is promising as chiral stationary phase for open tubular capillary electrochromatog. (OT-CEC) enantioseparation owing to its self-polymerization adhesive property and chiral recognition potential. In this work, CuSO4/H2O2 was used as a trigger agent to accelerate the polymerization process of L-DOPA and the poly-levodopa (poly-(L-DOPA)) coated column was successfully prepared for the first time by depositing it on the inner wall of fused silica capillary via the rapid and in-situ approach at room temperature The performance of the poly-(L-DOPA) coated capillary was validated by the separation of different chiral analytes, including chiral amine drugs, neurotransmitters and amino acids, and the good enantioseparation efficiencies were achieved. For five consecutive runs, the relative standard deviations (RSDs) for the migration time of the analytes for intra-day, inter-day and column-to-column were in the range of 0.19-1.33%, 0.96-4.47%, and 2.21-7.79%, resp. Addnl., the poly-(L-DOPA) coated capillary column could be successively used over 250 runs without observable change in the separation efficiency. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Category: alcohols-buliding-blocks

The Article related to electrochromatog enantioseparation polylevodopa capillary column, enantioseparation, open tubular capillary electrochromatography, poly-levodopa, Biochemical Methods: Chromatographic and other aspects.Category: alcohols-buliding-blocks

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