Showing 341 - 360 results of 1,089 for search '"catalyst"', query time: 0.05s Refine Results
  1. 341

    A Practical Catalyst-Free Synthesis of 6-Amino-4 Alkyl/Aryl-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-carbonitrile in Aqueous Medium by Manisha Bihani, Pranjal P. Bora, Ghanashyam Bez

    Published 2013-01-01
    “…Similar synthesis starting from aliphatic aldehydes was carried out in water: ethanol (1 : 1) at reflux temperature without using any catalyst.…”
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    Article
  2. 342

    Multicomponent, Solvent-Free Synthesis of 1-Amidoalkyl-2-naphthols in the Presence of H3+xPMo12-x Vx O40 Heteropolyacids as Recyclable and Green Catalysts by Fatemeh F. Bamoharram, Majid M. Heravi, Mina Roshani, Mohammad J. Sane Charkhi

    Published 2011-01-01
    “…A rapid and efficient one-pot method for the synthesis of 1-amidoalkyl-2-naphthols has been developed in the presence of mixed-addenda vanadium(V)-substituted polyoxomolybdates including: H3+xPMo12-xVxO40 (x=1-3) heteropolyacids (HPAs) as recyclable catalysts under solvent-free conditions. In all cases heteropolyacid with x = 3 gave the highest yield under solvent-free conditions.…”
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  3. 343

    A novel conjugated polymer synthesized via a noble metal-free catalyst in photothermal therapy of hepatocellular carcinoma mediated by second near-infrared (NIR-II) laser by Shengsheng Cui, Xinni Pan, Shanshan Fan, Cheng Cao, Yingao Jiao, Yanfei Fu, Jiaqi Niu, Shujin Lin, Jingmao Lao, Yanlei Liu

    Published 2025-04-01
    “…Notably, the synthesis of PPAPA avoids the use of noble metal catalysts, eliminating potential biotoxicity caused by residual catalysts and ensuring optimal photothermal stability and efficiency. …”
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    Article
  4. 344

    Catalytic Synthesis of Diethyl Carbonate from Carbon Dioxide using Catalyst KI/EtONa with Propylene Oxide as Dehydration Agent and Process Optimization Based on Box-Behnken Design by Lintang Alivia Anggerta, Firman Kurniawansyah, Rizky Tetrisyanda, Gede Wibawa

    Published 2025-01-01
    “…However, common challenges in synthesizing DEC from CO2 have been high energy consumption, catalysts-dehydrating agent selection, and relatively complex reaction. …”
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  5. 345

    Characterization of the Liquid Fuel Produced from Catalytic Depolymerization of Polymeric Waste Using Batch Reactor by O. L. Rominiyi, M. A. Akintunde, E. I Bello, L. Lajide, O. M. Ikumapayi, O. T. Laseinde and B. A. Adaramola

    Published 2024-12-01
    Subjects: “…polymeric waste, ultimate analysis, catalyst depolymerization, activated carbon, calcium oxide, liquid fuel characterization…”
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  8. 348

    Acid-decorated chitosan-magnetic aluminum ferrite as a bionanocomposite catalyst for green synthesis of biologically active [4,3‑d]pyrido[1,2‑a]pyrimidin-6‑ones by Maryam Saberi-Zare, Mohammad Ali Bodaghifard

    Published 2025-01-01
    “…This procedure offers numerous advantages, including short reaction times, the use of a green solvent, the ability to reuse the catalyst without a significant decrease in catalytic activity, and easy separation of the catalyst using an external magnet. …”
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    Photocatalytic Degradation of Alizarin Red S, Amaranth, Congo Red, and Rhodamine B Dyes Using UV Light Modified Reactor and ZnO, TiO2, and SnO2 as Catalyst by Rabia Rehman, Waheed-Uz-Zaman, Asma Raza, Warda Noor, Amna Batool, Hamna Maryem

    Published 2021-01-01
    “…The photocatalytic degradation of dyes (alizarin red S, amaranth, congo red, and rhodamine B) present in wastewater was performed with UV lamp. The catalysts employed for this investigation were ZnO, TiO2, and SnO2. …”
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  20. 360

    Facile and Promising Method for Michael Addition of Indole and Pyrrole to Electron-Deficient trans-β-Nitroolefins Catalyzed by a Hydrogen Bond Donor Catalyst Feist’s Acid and Preliminary Study of Antimicrobial Activity by Abdullah M. A. Al Majid, Mohammad Shahidul Islam, Assem Barakat, Mohamed H. M. Al-Agamy, Mu. Naushad

    Published 2014-01-01
    “…The importance of cooperative hydrogen-bonding effects has been demonstrated using novel 3-methylenecyclopropane-1,2-dicarboxylic acid (Feist’s acid (FA)) as hydrogen bond donor catalysts for the addition of indole and pyrrole to trans-β-nitrostyrene derivatives. …”
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