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Showing 1-20 of 101 results
  1. Preparation of Polyhydroacridines and Polyhydroquinolines Using BPHSBF as a Novel Organic–Inorganic Hybrid Magnetic Nanocatalyst

    Initially, 1,3-bis(4-pyridyl)propane hydrogen sulfate grafted to chloropropyl functionalized bilayer silica-nano-Fe 3 O 4 (BPHSBF) has been synthesized....

    Sherzod Shukhratovich Abdullaev, Sulieman Ibraheem Shelash Al-Hawary, ... Rohollah Fathollahi in Journal of Inorganic and Organometallic Polymers and Materials
    Article 06 October 2023
  2. Immobilization of papain onto nitrogen graphene quantum dots and its use as an efficient catalyst for facile MW-assisted synthesis of polyhydroquinolines

    A fast and environmentally benign procedure for the preparing of polyhydroquinolines using graphene quantum dots immobilized papain as an efficient...

    Farzaneh Mirzaei, Hassan Valizadeh, Mohammad Pazhang in Journal of the Iranian Chemical Society
    Article 26 December 2023
  3. Catalyst-free, one-pot expeditious synthesis of polyhydroquinolines and 2-amino-4H-chromenes

    The present work highlights a rapid, efficient, eco-friendly protocol for synthesizing one-pot polyhydroquinolines via Hantzsch reaction and 2-amino-4

    Prerna Ganwir, Priyanka Bandivadekar, ... Ganesh U. Chaturbhuj in Research on Chemical Intermediates
    Article 29 June 2022
  4. Heterogeneous nanostructured catalysts in the synthesis of polyhydroquinolines (microreview)

    This microreview focuses on the main modern synthetic approaches toward polyhydroquinolines, which represent a significant group of N-heterocycles of...

    Mario A. Leyva-Acuña, Julio Montes-Avila in Chemistry of Heterocyclic Compounds
    Article 01 September 2022
  5. Introducing a new magnetic nanocomposite based on the chitosan modified by sulfonic acid-containing moieties for synthesis of 1,4-dihydropyridines and polyhydroquinolines

    Due to environmental concerns, the development of bio-inspired nanocatalysts is growing increasingly. Hence, in this study an acidic magnetic...

    Maryam Shahsavari, Mohammad Piltan in Research on Chemical Intermediates
    Article 01 September 2023
  6. Complexation of guanidino containing l-arginine with nickel on silica-modified Hercynite MNPs: a novel catalyst for the Hantzsch synthesis of polyhydroquinolines and 2,3-Dihydroquinazolin-4(1H)-ones

    In this study, a novel amino acid-based Ni complex was immobilized on SiO 2 -modified Hercynite magnetic nanoparticles as the support to prepare the...

    Masoud Mohammadi, Arash Ghorbani-Choghamarani in Research on Chemical Intermediates
    Article 05 April 2022
  7. Heterogenized Phosphinic Acid on UiO-66-NH2: A Bifunctional Catalyst for the Synthesis of Polyhydroquinolines

    Abstract

    The preparation and application of UiO-66-NH 2 - bis (aminomethyl)-phosphinic acid are reported in this study. The supported phosphinic acid is...

    Saeed Askari, Mohammad Mehdi Khodaei, Mohammad Jafarzadeh in Catalysis Letters
    Article 23 July 2021
  8. Amine Functionalized Dendronized Polymer as a Homogeneous Base Catalyst for the Synthesis of Polyhydroquinolines and 4-Arylidene-3-Methylisoxazol-5(4H)-Ones

    Abstract

    Novel isosorbide initiated polyepichlorohydrin cored PPI dendronized polymer (ISO-PECH-Amine-G1) has been prepared and its structure was...

    K. Hiba, S. Prathapan, K. Sreekumar in Catalysis Letters
    Article 13 October 2021
  9. Synthesis, identification and application of Fe3O4@THAM-Mercaptopyrimidine nanoparticles as a novel and highly recyclable nanocatalyst in one-pot multicomponent synthesis of 1,8-dioxo-octahydroxanthenes and polyhydroquinolines

    Fe 3 O 4 @THAM-Mercaptopyrimidine nanoparticles, as eco-friendly and inexpensive compounds, catalyzed the synthesis of 1,8-dioxo-octahydroxanthenes...

    Elham Mir, Nourallah Hazeri, ... Maryam Fatahpour in Research on Chemical Intermediates
    Article 04 March 2023
  10. Efficient synthesis of decahydroacridine-1,8-diones and polyhydroquinolines using the step-wise method

    Various symmetrical and unsymmetrical decahydroacridine-1,8-dione and polyhydroquinoline derivatives were synthesized via two-step cyclocondensation...

    Fatemeh Sadat Hosseininasab, Hamid Reza Memarian in Research on Chemical Intermediates
    Article 04 January 2022
  11. Sulfated polyborate as an eco-compatible solid acid catalyst for efficient and facile solvent-free synthesis of polyhydroquinolines

    Abstract

    An environmentally viable, green and efficient protocol for the synthesis of polyhydroquinolines using sulfated polyborate catalyst have been...

    Dilip Aute, Akshay Kshirsagar, ... Anil Gadhave in Journal of Chemical Sciences
    Article 03 November 2020
  12. Solvent free, environment benign synthesis of 1,4-dihydropyridines and polyhydroquinolines by using heterogeneous Zn/MCM-41 catalyst

    Heterogeneous catalysis has been utilized in number of efficient reactions with higher selectivity of the product, more stable, reusable and easy for...

    Shankar D. Dhengale, Vaibhav M. Naik, ... Prashant V. Anbhule in Research on Chemical Intermediates
    Article 28 April 2021
  13. Biogenic synthesis of ZnO nanoparticles from Parthenium histerophorus extract and its catalytic activity for building bioactive polyhydroquinolines

    Abstract

    In the present protocol, biogenic synthesis of ZnO nanoparticles using an aqueous extract of weed, i.e. Parthenium is efficiently carried...

    Prasad Mane, Bipin Shinde, ... Arvind Burungale in Research on Chemical Intermediates
    Article 05 January 2021
  14. Aluminized polyborate-catalysed green and efficient synthesis of polyhydroquinolines under solvent-free conditions

    Abstract

    The present work reports a catalytic application of aluminized polyborate for the solvent-free one pot four-component green, efficient and...

    Dilip Aute, Akshay Kshirsagar, ... Anil Gadhave in Research on Chemical Intermediates
    Article 06 May 2020
  15. Reaction of 1H-pyrrole-2,3-diones with malononitrile and aminocyclohexenones: synthesis of spiro[pyrrole-3,4′-quinolines]

    New polyhydroquinolines spiroannulated with the pyrrol-2-one moiety were synthesized by the 4-dimethylaminopyridine-catalyzed three-component...

    M. V. Dmitriev, A. A. Moroz, ... A. N. Maslivets in Russian Chemical Bulletin
    Article 01 November 2022
  16. Synergy of the combined use of tannic acid extracted from the Pistacia atlantica Desf tree bark and copper as a nanocatalyst in the green synthesis of polyhydroquinolines

    The main purpose of this research was preparation of the tannic acid-based copper nanoparticle (TAN–Cu–NP) and its use as a nanocatalyst in the...

    Noorkhoda Yousefzadeh, Davood Habibi, Mohammad Hadi Meshkatalsadat in Journal of the Iranian Chemical Society
    Article 23 August 2022
  17. Mesoporous SBA-15@n-Pr-THAM-ZrO organic–inorganic hybrid: as a highly efficient reusable nanocatalyst for the synthesis of polyhydroquinolines and 2,3-dihydroquinazolin-4 (1h)-ones

    In this work, tris(hydroxymethyl)aminomethane-Zirconium complex supported on modified SBA-15 (SBA-15@n-Pr-THMAM-ZrO) prepared as a novel mesoporous...

    Arash Ghorbani-Choghamarani, Hamid Aghavandi, Masoud Mohammadi in Journal of Porous Materials
    Article 01 April 2021
  18. New Copper Complex on Fe3O4 Nanoparticles as a Highly Efficient Reusable Nanocatalyst for Synthesis of Polyhydroquinolines in Water

    Abstract

    In this work, we present a simple, environmentally friendly and economical route for the preparation of a novel copper-Schiff-base...

    Muhammad Aqeel Ashraf, Zhenling Liu, ... Caixia Gao in Catalysis Letters
    Article 10 October 2019
  19. Cu@SB-MCM-41 composite as an efficient and recyclable nanocatalyst for the synthesis of polyhydroquinoline derivatives via unsymmetrical Hantzsch reaction

    In this paper, a novel Schiff-base/copper complex containing ordered mesoporous silica (Cu@SB-MCM-41) material is synthesized, characterized and its...

    Masoumeh Shaker, Alireza Salimi Beni in Journal of Porous Materials
    Article 10 November 2020
  20. Synthesis and Characterization of Magnetic Functionalized Ni and Cu Nano Catalysts and Their Application in Oxidation, Oxidative Coupling and Various Multi-Component Reactions

    Abstract

    Two magnetic nano catalysts of nickel and copper, Fe 3 O 4 @SiO 2 @DOP-BenPyr-M(II), (M=Ni and Cu) have been synthesized. These catalysts were...

    Maryam Hajjami, Shiva Sheikhaei, ... Zakieh Yousofvand in Catalysis Letters
    Article 03 January 2021
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