Showing 281 - 300 results of 1,391 for search '"AMiner"', query time: 0.04s Refine Results
  1. 281

    Synthesis, Characterization, and Catalytic Activity of Pd(II) Salen-Functionalized Mesoporous Silica by Rotcharin Sawisai, Ratchaneekorn Wanchanthuek, Widchaya Radchatawedchakoon, Uthai Sakee

    Published 2017-01-01
    “…The solid catalysts showed higher activity for the hydroamination of C-(tetra-O-acetyl-β-D-galactopyranosyl)allene with aromatic amines compared with the corresponding homogenous catalyst. …”
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    Article
  2. 282

    A Novel and Highly Regioselective Synthesis of New Carbamoylcarboxylic Acids from Dianhydrides by Adrián Ochoa-Terán, Jesús Estrada-Manjarrez, Marisela Martínez-Quiroz, Marco A. Landey-Álvarez, Eleazar Alcántar Zavala, Georgina Pina-Luis, Hisila Santacruz Ortega, Luis Enrique Gómez-Pineda, José-Zeferino Ramírez, Daniel Chávez, Julio Montes Ávila, Victoria Labastida-Galván, Mario Ordoñez

    Published 2014-01-01
    “…A regioselective synthesis has been developed for the preparation of a series of N,N′-disubstituted 4,4′-carbonylbis(carbamoylbenzoic) acids and N,N′-disubstituted bis(carbamoyl) terephthalic acids by treatment of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (1) and 1,2,4,5-benzenetetracarboxylic dianhydride (2) with arylalkyl primary amines (A-N). The carbamoylcarboxylic acid derivatives were synthesized with good yield and high purity. …”
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  3. 283

    Simultaneous Determination of Salicylic Acid, Jasmonic Acid, Methyl Salicylate, and Methyl Jasmonate from Ulmus pumila Leaves by GC-MS by Zhi-hong Huang, Zhi-li Wang, Bao-lin Shi, Dong Wei, Jian-xin Chen, Su-li Wang, Bao-jia Gao

    Published 2015-01-01
    “…The study uses Ulmus pumila leaves infected by Tetraneura akinire Sasaki at different stages as materials; after extraction with 80% methanol and ethyl acetate and purification with primary secondary amine (PSA) and graphitized carbon blacks (GCB), the contents of signal compounds salicylic acid, jasmonic acid, methyl salicylate, and methyl jasmonate were determined by GC-MS. …”
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  4. 284

    Synthesis and Evaluation of New Phthalazine Urea and Thiourea Derivatives as Carbonic Anhydrase Inhibitors by Nurcan Berber, Mustafa Arslan, Emre Yavuz, Cigdem Bilen, Nahit Gencer

    Published 2013-01-01
    “…A new series of phthalazine substituted urea and thiourea derivatives were synthesized, and their inhibitory effects on the activity of purified human carbonic anhydrases (hCAs I and II) were evaluated. 2H-Indazolo[2,1-b]phthalazine-trione derivative (1) was prepared with 4-nitrobenzaldehyde, dimedone, and phthalhydrazide in the presence of TFA in DMF, and nitro group was reduced to amine derivative (2) with SnCl2·2H2O. The compound was reacted with isocyanates and isothiocyanates to get the final products (3a–p). …”
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  5. 285

    Iron-catalysed stereoselective NH transfer enables dynamic kinetic resolution of sulfoxides by Fang-Xu Fan, Hui Xu, Shi-Xiong Tang, Yanfeng Dang, Fei Wang

    Published 2025-02-01
    “…However, enantioselective NH transfer that allows concise assembly of unprotected enantioenriched amines remains an enduring challenge. We report here an iron-catalysed stereoselective NH imidation of sulfoxide, which is integrated with photocatalytic racemisation of sulfoxide, enabling a dynamic kinetic resolution (DKR) strategy for direct and asymmetric synthesis of NH-sulfoximines. …”
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  6. 286

    MUATAN KEILMUAN INTEGRASI INTERKONEKSI PENDIDIKAN AGAMA ISLAM DAN BUDI PEKERTI (Telaah Kurikulum 2013 Jenjang SMA) by Wiji Hidayati, Wiji Hidayati

    Published 2015-06-01
    “…Content analysis is used as data analysis technique based on Al-Jabiri’s epistemology namely, bayani, irfani, and burhani, while the integration-interconnection aspect of science is based on M.Amin Abdullah’s hypothesis with circular model incorporating Al-Jabiri’s three scientific epistemology. …”
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  7. 287

    Quality Assessment of Young Sparkling Wines of Crimean Indigenous Grape Varieties by Igor P. Lutkov, Alexander S. Makarov, Natalia A. Shmigelskaya

    Published 2024-03-01
    “…Organic acids, sugars, glycerin, phenolic substances, and ethanol were determined by high performance liquid chromatography; the content of amine nitrogen was measured by formalin titration. …”
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  8. 288
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  16. 296

    Recent advances in L-Asparaginase enzyme production and formulation development for acrylamide reduction during food processing by Arindam Jana, Soumyajit Biswas, Ritu Ghosh, Rahul Modak

    Published 2025-01-01
    “…L-asparaginase hydrolyses the amine-group of L-asparagine to produce aspartic acid and ammonia. …”
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  17. 297

    Multi-Walled Carbon Nanotubes Accelerate Leukaemia Development in a Mouse Model by Qingqing Wang, Jingdan Han, Mujia Wei, Huikai Miao, Min Zhang, Biao Wu, Yao Chen, Yanwen Zheng, Robert Peter Gale, Bin Yin

    Published 2024-09-01
    “…These effects were significantly reduced in immunodeficient mice and when mice were treated with methoxypolyethylene glycol amine (PEG)-modified MWCNTs. These findings underscore the necessity of evaluating the safety of MWCNTs, particularly for those with hematologic cancers.…”
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  18. 298

    A Facile Synthesis of Pyrido[2′,3′:3,4]pyrazolo[1,5-a]pyrimidine and Pyrido[2′,3′:3,4]pyrazolo[5,1-c][1,2,4]triazine Bearing a Thiophene Moiety by Tilal Elsaman, Mohamed Fares, Hatem A. Abdel-Aziz, Mohamed I. Attia, Hazem A. Ghabbour, Kamal M. Dawood

    Published 2013-01-01
    “…Pyridinone derivative 8 was synthesized and transformed into the respective chloropyridine 9, which was allowed to react with hydrazine hydrate to afford pyrazolo[3,4-b]pyridin-3-amine derivative 11. Compound 11 was used as a key intermediate for a facile synthesis of the title compounds 14, 15, 17, 21a,b, and 24a–c where the reaction of 11 with some 1,3-dielecrophiles resulted in the formation of pyrido[2′,3′:3,4]pyrazolo[1,5-a]pyrimidines 14, 15, and 17, whereas diazotization of compound 11 gave the respective diazonium salt 18 which was coupled with some active methylene-containing compounds to give the corresponding hydrazones 19a,b and 22a–c. …”
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  19. 299

    From a Habit to a Husband by Danson Sylvester Kahyana

    Published 2021-12-01
    “…Data is collected through a close reading of the play under analysis, within the socio-political context in which it was written and produced, that is, the politically turbulent decade following Uganda's flag independence in 1962, characterised "among others" by events like the abolition of kingdoms by the Prime Minister, Milton Obote, and his ouster in a military coup by his army commander, General Idi Amin, on 25 January, 1971. The analysis of the text is guided by insights drawn from selected scholars of masculinities featured in Helen Nabasuta Mugambi and Tuzyline Jita Allanâ's edited volume, entitled Masculinities in African and Cultural Texts (2010). …”
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  20. 300

    One-Pot Synthesis of Novel Furochromone and Oxazocine Derivatives as Promising Antitumor Agents with Their Molecular Docking Studies by Rita M. Borik

    Published 2020-01-01
    “…One-pot efficient synthesis of novel chromone derivatives 4a–h and that of 5a–h were described in a simple method via four-component reaction between furochromone carbaldehyde, amine, isocyanate derivatives, and benzoic acid derivatives or nicotinic acid, respectively. …”
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