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Showing 1-20 of 1,572 results
  1. Silica-grafted DBU-supported NiCl2: a sustainable heterogeneous catalyst for A3 coupling

    Silica-grafted DBU-supported NiCl 2 complex, 1-(3-((3-(silica-trioxysilyl) propyl) amino) propyl) azepan-2-one nickel chloride (SiO 2 @DBU-NiCl 2 ), has...

    P. S. Pharande, G. S. Rashinkar, D. M. Pore in Research on Chemical Intermediates
    Article 08 March 2023
  2. DBU-Based Ionic Liquid Grafted SBA-15 Dual-Functional Catalyst for the Cycloaddition Reaction of CO2 and Epoxide

    The development of novel catalysts for the synthesis of cyclic carbonates under mild conditions remains a challenge. Herein, we designed the strategy...

    Jianfei Sun, Zhuojian Li, ... Jianzhong Yin in Catalysis Letters
    Article 08 November 2021
  3. DBU-Catalyzed Efficient One-Pot Three-Component Synthesis of Aminoquinoline Derivatives via Betti Reaction in Polar Medium and Antidiabetic Activity of the Products

    Abstract

    Aminoquinoline derivatives are known for their superlative efficacy in the treatment of many diseases. An efficient synthesis of Betti bases...

    R. R. Makwana, K. M. Kapadiya, J. M. Parmar in Russian Journal of Organic Chemistry
    Article 01 April 2023
  4. Efficient synthesis of pyrazolopyranopyrimidines using DBU-based nanomagnetic catalyst

    A simple and efficient method for the synthesis of pyrazolopyranopyrimidines under solvent-free has been developed. The one-pot multicomponent...

    Mehran Honari, Haleh Sanaeishoar, ... Mohammad Kazem Mohammadi in Research on Chemical Intermediates
    Article 24 February 2021
  5. DBU hydrogen sulfate bonded to chloropropyl-functionalized bilayer silica-nano-Fe3O4: as an efficacious magnetic nanocatalyst for rapid synthesis of pyrido[2,3-d:6,5-d′]dipyrimidines

    This manuscript describes the preparation and characterization of DBU hydrogen sulfate bonded to chloropropyl-functionalized bilayer silica-nano-Fe 3 O 4 ...

    Sulieman Ibraheem Shelash Al-Hawary, Daha Thabit, ... Ahmed Hussien Radie Alawady in Research on Chemical Intermediates
    Article 30 September 2023
  6. [DBU][OAc]-mediated synthesis and anthelmintic activity of triazole–tetrazole conjugates

    Tetrazoles and 1,2,3-triazoles are poorly understood regarding their anthelmintic activity. Therefore, an effort was taken to identify novel chemical...

    Madiha A. Siddiqui, Mubarak H. Shaikh, ... Bapurao B. Shingate in Research on Chemical Intermediates
    Article 17 October 2022
  7. DBU-Mediated Efficient Synthesis of Indole-Conjugated Chromene Derivatives and Their Anticancer Evaluation and Molecular Modeling Study

    Abstract

    A series of 9-(1 H -indol-3-yl)-2,3,4,9-tetrahydro-1 H -xanthen-1-one derivatives have been obtained by a one-pot three-component DBU-catalyzed...

    Kurapati Ravi, Bala Narsimha Dhoddi, Jalapathi Pochampally in Russian Journal of Organic Chemistry
    Article 01 May 2023
  8. DBU(OAc)–TBAB-Mediated One-Pot Three-component Synthesis of 1H-Imidazol-5(4H)-one Derivatives

    Abstract

    One-pot three-component synthesis of 1 H -imidazol-5(4 H )-one derivatives from ( Z )-4-(aryl­methylidene)-2-methyl-1,3-oxazol-5(4 H )-one,...

    V. A. Rani, Y. B. Kumari in Russian Journal of Organic Chemistry
    Article 01 March 2022
  9. Copper(II) phthalocyanine as an efficient and versatile catalyst for click reactions at room temperature

    Herein, we report the efficient synthesis of copper(II) phthalocyanines in the presence of DBU as a strong base. These synthesized copper(II)...

    Kumar Karitkey Yadav, Uma Narang, ... S. M. S. Chauhan in Journal of the Iranian Chemical Society
    Article 29 June 2022
  10. Unified short syntheses of oxygenated tricyclic aromatic diterpenes by radical cyclization with a photoredox catalyst

    The biomimetic two-phase strategy employing polyene cyclization and subsequent oxidation/substitution is an effective approach for divergent...

    Riichi Hashimoto, Kengo Hanaya, ... Shuhei Higashibayashi in Communications Chemistry
    Article Open access 21 August 2023
  11. Copper complex supported on the surface of magnetic nanoparticles: an ecofriendly catalyst for C–S and C–Se coupling reactions

    Research on the preparation of diallyl sulfides and selenides is always an important challenge among chemists because these compounds are of high...

    Ke Wang, Li-Yuan Chang in Journal of the Iranian Chemical Society
    Article 27 April 2024
  12. Tetraether bridged benzylideneamino mercaptopropanoic acid substituted Cobalt phthalocyanine/rGO as a catalyst for oxygen evolution reaction in an alkaline medium

    Water splitting reaction is a bottleneck for the environmentally safe production of hydrogen (H 2 ) and oxygen (O 2 ). Catalysts with high effectualness,...

    K. B. Chandrakala, C. D. Mruthyunjayachari, ... K. R. Venugopalareddy in Chemical Papers
    Article 02 November 2023
  13. A perspective into ring-opening polymerization of ε-caprolactone and lactides: effect of, ligand, catalyst structure and system dynamics, on catalytic activity and polymer properties

    Polylactic acid (PLAs) and polycaprolactones (PCLs) are emerging to be polyesters of choice because they are biodegradable and biocompatible. The...

    W. A. Munzeiwa, Bernard Owaga Omondi, V. O. Nyamori in Polymer Bulletin
    Article Open access 18 February 2024
  14. NiZnFe2O4: an eco-compatible and magnetically separable catalyst for multicomponent synthesis of 2-amino-4H-chromenes

    The magnetically separable heterogeneous nickel–zinc ferrite (NiZnFe 2 O 4 ) catalyst was synthesized and used for the first time as an environmentally...

    Sandip P. Patil, Sachinkumar K. Shinde, ... Suresh S. Patil in Research on Chemical Intermediates
    Article 11 June 2023
  15. Efficient Fixation of CO2 to Cyclic Carbonates Under Mild Conditions Catalyzed by Deep Eutectic Solvent

    The fixation of CO 2 into valuable chemicals under mild conditions is of great importance. Here, we reported an efficient and mild method for the...

    Zehua Qian, Xueyu Shang, ... Shu Sun in Catalysis Letters
    Article 20 June 2023
  16. B(C6F5)3-based Lewis pair-catalyzed acrylate polymerization: Lewis base effects on pairing interactions

    Acrylate polymerizations catalyzed by Lewis pairs (LP) composed of B(C 6 F 5 ) 3 and various Lewis bases (phosphines, amines, and an N-heterocyclic...

    Yuka Naganawa, Kazumasa Mori, ... Masato Suzuki in Polymer Journal
    Article 04 January 2024
  17. The new phthalic acid-based deep eutectic solvent as a versatile catalyst for the synthesis of pyrimido[4,5-d]pyrimidines and pyrano[3,2-c]chromenes

    A new DES (MTPPBr-PHTH-DES) was prepared from a mixture of methyltriphenyl-phosphonium bromide (MTPPBr) and phthalic acid (PHTH). The eutectic point...

    Arezo Monem, Davood Habibi, ... Hadis Goudarzi in BMC Chemistry
    Article Open access 27 June 2024
  18. Continuous flow synthesis of HMF from glucose using gadolinium (III) trifluoromethanesulfonate in Brønsted acidic ionic liquid as a catalytic system

    The direct conversion of glucose to 5-(hydroxymethyl)furfural (HMF) has been considered a challenging process. In this study, we developed a new...

    Ha Bich Phan, Trinh Hao Nguyen, ... Phuong Hoang Tran in Journal of Flow Chemistry
    Article 29 November 2022
  19. A Simple, Green, and Efficient One-Pot Synthesis of Dihydro­pyrano[3,2-c]chromene Derivatives Using MgMnO3@ZrO2@CoO as a Core–Shell Nanocrystalline Catalyst

    Abstract

    A rapid, clean, and highly efficient method for the synthesis of dihydropyrano[3,2- c ]chromene deriv­a­tives by one-pot three-component...

    Y. R. Shelke, V. D. Bobade, ... A. V. Borhade in Russian Journal of Organic Chemistry
    Article 01 April 2023
  20. One-Pot Green Synthesis of 2-Amino-7,7-dimethyl-5-oxo-4-(1H-pyrazol-5-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitriles

    Abstract

    –The one-pot three-component combinatorial synthesis of pharmaceutically active 2-amino-7,7-dimethyl-5-oxo-4-(1 H -pyrazol-5-yl)-5,6,7,8-tetrahydro-4...

    Kalyan Maram, K. Anitha, ... R. Ramesh Raju in Russian Journal of Organic Chemistry
    Article 01 November 2023
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