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Showing 1-20 of 3,175 results
  1. Organocatalysis in 1,3-Dipolar Cycloaddition Reactions (A Review)

    Abstract

    One of the promising directions in 1,3-dipolar cycloaddition is the implementation of these reactions under organocatalysis conditions, which...

    Yu. A. Pronina, L. A. Teglyai, ... A. V. Stepakov in Russian Journal of General Chemistry
    Article 01 January 2024
  2. Arenes participate in 1,3-dipolar cycloaddition with in situ-generated diazoalkenes

    The venerable 1,3-dipolar cycloaddition has been widely used in organic synthesis for the construction of various heterocycles. However, in its...

    Shubhangi Aggarwal, Alexander Vu, ... Valery V. Fokin in Nature Chemistry
    Article 22 May 2023
  3. Copper-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides with β-trifluoromethyl-substituted alkenyl heteroarenes

    Copper-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides and β-trifluoromethyl-substituted alkenyl heteroarenes was developed for...

    **ang Cheng, **n Chang, ... Chun-Jiang Wang in Science China Chemistry
    Article 23 August 2023
  4. Synthesis of 5-ethynylisoxazoles based on 1,3-dipolar cycloaddition reactions of nitrile oxides with conjugated diynes

    New 5-ethynylisoxazoles were obtained via 1,3-dipolar cycloaddition reactions of nitrile oxides with buta-1,3-diynes. The cycloaddition proceeds...

    M. M. Efremova, A. M. Rumyantsev, ... A. I. Govdi in Russian Chemical Bulletin
    Article 01 July 2023
  5. 1,3-Dipolar Cycloaddition of Stable Azomethine Ylide Based on Ninhydrin and L-Proline to Phosphorylated Acetylenes

    Abstract

    The reaction of 1,3-dipolar cycloaddition of a stable azomethine ylide formed from ninhydrin and L-proline to activated acetylenic...

    A. A. Sokolov, D. M. Egorov, ... A. V. Stepakov in Russian Journal of General Chemistry
    Article 01 July 2023
  6. Synthesis of Benzothiazole-Fused meso-Tetrakis(pentafluorophenyl)chlorin Through 1,3-Dipolar Cycloaddition Reaction

    Abstract

    The 1,3-dipolar cycloaddition reaction of 2-nitro- meso -tetrakis(pentafluorophenyl)porphyrin and azomethine ylide, generated in situ by...

    Sha Li, Yuhuan Zhu, **aofang Li in Russian Journal of General Chemistry
    Article 01 May 2023
  7. Organocatalytic Diastereoselective Synthesis of Spiro[3-azabicyclo[3.1.0]hexanes] via 1,3-Dipolar Cycloaddition of Azomethine Ylides with Cyclopropenes

    Abstract

    A three-component organocatalytic reaction of 1,3-dipolar cycloaddition between the in situ generated azomethine ylides and 3-substituted...

    Yu. A. Pronina, N. B. Viktorov, ... A. V. Stepakov in Russian Journal of General Chemistry
    Article 01 April 2024
  8. Synthesis of Spiro[pyrrole-3,2'-pyrrolo[2,1-b]oxazoles] via 1,3-Dipolar Cycloaddition of 1H-Pyrrole-2,3-diones to Azomethine Ylides

    Abstract

    The 1,3-dipolar cycloaddition of 1 H -pyrrole-2,3-diones to azomethine ylides generated in situ by the condensation of L-proline and...

    A. A. Moroz, M. V. Dmitriev, A. N. Maslivets in Russian Journal of Organic Chemistry
    Article 01 November 2023
  9. Cyclopropenes and methylenecyclopropanes in 1,3-dipolar cycloaddition reactions

    The review considers the main results of the cycloaddition reactions involving cyclopropenes and methylenecyclopropanes, the compounds bearing...

    A. P. Molchanov, M. M. Efremova, M. A. Kuznetsov in Russian Chemical Bulletin
    Article 25 April 2022
  10. A 1,3-dipolar cycloaddition of azomethine ylides to imidazo[4,5-e]thiazolo[2,3-c][1,2,4]triazine oxindolylidene derivatives in the synthesis of novel spirooxindole derivatives

    The stereochemistry of the 1,3-dipolar cycloaddition reaction of azomethine ylides to oxindolylidene derivatives of imidazo[4,5- e ]-thiazolo[2,3- c ][1,2...

    Alexei N. Izmest’ev, Angelina N. Kravchenko, Galina A. Gazieva in Chemistry of Heterocyclic Compounds
    Article 01 August 2023
  11. 1,3-Dipolar Cycloaddition of Nitrones to Methyl {4-[(2E)-3-(4-Methoxyphenyl)prop-2-enoyl]phenyl}carbamate

    Abstract

    1,3-Dipolar cycloaddition of nitrones to methyl {4-[(2 E )-3-(4-methoxyphenyl)prop-2-enoyl]­phenyl}carbamate regioselectively afforded the...

    A. V. Velikorodov, E. N. Kutlalieva, ... A. S. Zukhairaeva in Russian Journal of Organic Chemistry
    Article 01 January 2022
  12. A metal-free approach for in situ regioselective synthesis of isoxazoles via 1,3 dipolar cycloaddition reaction of nitrile oxide with propargyl bromide

    Herein, we report a multi-component reaction (MCRs) to synthesise a range of 3-phenyl-5-(bromomethyl)isoxazoles analogues using DMF/water mixture as...

    Rajeshwar Reddy Aleti, Srinivasulu Cherukupalli, ... Rajshekhar Karpoormath in Chemical Papers
    Article 27 January 2022
  13. One-Step Three-Component Synthesis of Spiro Pyrrolidinones via 1,3-Dipolar Cycloaddition

    Abstract

    Three-component 1,3-dipolar cycloaddition reactions between isatin, benzylamine, and α,β-unsaturated ketones at room temperature afforded...

    I. G. Mamedov, Y. V. Mamedova in Russian Journal of Organic Chemistry
    Article 01 June 2021
  14. Synthesis and Biological Activities of Diosgenin-Triazole Conjugates with a 1,3-Dipolar Cycloaddition Reaction

    A novel series of diosgenin-triazole conjugates ( 10a–d , 11a–c , 12a–c , 13a–c ) was designed and synthesized as antifungal agents by using a 1,3-dipolar...

    Jun Liao, Guochao Liao, ... Qingjie Zhao in Chemistry of Natural Compounds
    Article 19 November 2021
  15. A robust three-component synthesis of dispiroheterocycles containing aurone scaffold via 1,3-dipolar cycloaddition reaction of azomethine ylides: regioselectivity and mechanistic overview using DFT calculations

    Highly regioselective synthesis of 12 new dispiroheterocycles containing aurone scaffold was reported via a three-component 1,3-dipolar cycloaddition...

    Zohreh Esmaeeli, Mohammad Reza Khodabakhshi, ... Hamid Saeidian in Structural Chemistry
    Article 06 September 2021
  16. Asymmetric catalytic 1,3-dipolar cycloaddition of α-diazoesters for synthesis of 1-pyrazoline-based spirochromanones and beyond

    A highly enantioselective 1,3-dipolar cycloaddition of α-substituted diazoesters with exocyclic enones was achieved with chiral scandium(III)/ N , N ’-dio...

    Peng Zhao, Zegong Li, ... **aoming Feng in Science China Chemistry
    Article 24 June 2021
  17. Synthesis of Dispiro[indeno[1,2-b]quinoxaline] Derivatives via 1,3-Dipolar Cycloaddition Reactions

    Abstract

    1,3-Dipolar cycloadditions of ( E )-7-(arylmethylidene)-6,7-dihydroindolizin-8(5 H )-one and ( E )-2-(arylmethylidene)-2,3-dihydro-1 H -pyrrolizin-1-...

    Sha Li, Jiaxi Tan, **aofang Li in Russian Journal of Organic Chemistry
    Article 01 October 2021
  18. Conjugation of 1-Aminoadamantanes and 5-Trifluoromethylhydantoins by 1,3-Dipolar Cycloaddition

    Abstract

    A synthetic approach was proposed for combining pharmacophore scaffolds, namely, 1-aminoadamantanes and 5-trifluoromethylhydantoins by the...

    V. B. Sokolov, A. Yu. Aksinenko, ... V. I. Shestov in Russian Journal of General Chemistry
    Article 01 October 2020
  19. Exploring the maximum Fukui function sites with the frontier-controlled soft-soft reactions using 1,3-dipolar cycloaddition reactions of nitrilium betaines

    According to P.K. Chattaraj. J Phys Chem A 2001, 105, 511-513 “ the maximum Fukui function site is the best for the frontier-controlled soft-soft...

    Alejandro Morales-Bayuelo, Jesús Sánchez-Márquez in Journal of Molecular Modeling
    Article 09 April 2022
  20. Heterocycles from Cycloaddition Reactions

    The synthesis of heterocyclic compounds via catalytic cycloaddition reactions of metallocarbenes is robust, atom-economic, and often allows access to...
    Kostiantyn O. Marichev in Heterocycles from Carbenes and Nitrenes
    Chapter 2023
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