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Showing 1-20 of 3,657 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. How do the carbon and nitrogen sources affect the synthesis of β-(1,3/1,6)-glucan, its structure and the susceptibility of Candida utilis yeast cells to immunolabelling with β-(1,3)-glucan monoclonal antibodies?

    Background

    The need to limit antibiotic therapy due to the spreading resistance of pathogenic microorganisms to these medicinal substances stimulates...

    Anna Bzducha-Wróbel, Pavol Farkaš, ... Marzena Sujkowska-Rybkowska in Microbial Cell Factories
    Article Open access 19 January 2024
  3. Ni-catalysed assembly of axially chiral alkenes from alkynyl tetracoordinate borons via 1,3-metallate shift

    Asymmetric synthesis based on a metallate shift of tetracoordinate borons is an intriguing and challenging topic. Despite the construction of central...

    **ngxing Ma, Mengwei Tan, ... Qiuling Song in Nature Chemistry
    Article 05 January 2024
  4. Selective determination of formaldehyde by high-performance liquid chromatography with porous graphitic carbon column using N,N′-bis(9-anthrylmethyl)propane-1,3-diamine as derivatizing reagent

    Aromatic compounds containing two secondary amino groups were designed and prepared as new derivatizing reagents for aldehydes. One of them, N,N′ -bis(...

    Takashi Yokoyama, Yoshiyuki Andoh, ... Michio Zenki in Analytical Sciences
    Article 23 December 2022
  5. Binuclear Vanadium(V) Complex with the Ligand Based on Isonicotinic Acid Hydrazide and 1-Phenyl-1,3-Butanedione: Synthesis and Crystal Structure

    Abstract

    A new molecular binuclear vanadium(V) complex [VO(L)(OCH 3 )] 2 ( I ) is synthesized in which ligand H 2 L is prepared by the reaction of...

    P. Bourosh, M. Cocu, ... I. Bulhac in Russian Journal of Coordination Chemistry
    Article 01 April 2023
  6. Simple and Facile Synthesis of 2-(Arylamino)-1,3-benzothiazoles Using Iodine–Alumina (I2-Al2O3) as Heterogenous Catalyst and Their Antimicrobial Activity

    Abstract

    The synthesis of 2-anilino-1,3-benzothiazoles was achieved by reacting N , N ′-diarylthioureas with iodine–alumina under solvent-free...

    L. Nahakpam, M. D. Thiyam, W. S. Laitonjam in Russian Journal of Organic Chemistry
    Article 01 January 2023
  7. Synthesis of 1,3-Bis(3-R-adamantan-1-yl)acetones

    Abstract

    Methods have been developed for the synthesis of symmetrical 1,3-bis(3-R-adamantan-1-yl)­acetones [R = OH, aryl, heteroaryl, R′C(O)NH, NH 2 C(S)...

    V. V. Kovalev, E. A. Shokova in Russian Journal of Organic Chemistry
    Article 01 January 2022
  8. 2-Substituted Allyl Bromides as Electrophilic and Nucleophilic Building Blocks for 1,3-Dicarbonyl Compounds and Their Use in the Synthesis of Heterocycles

    Abstract

    An efficient procedure has been developed for the synthesis of new heterocyclic compounds from 2-substituted functionalized allyl bromides as...

    Article 01 September 2022
  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. Mannich Reaction Involving 6-Amino-4-methyl-2-(thio)oxo-1,2-dihydropyridine-3,5-dicarbonitriles

    Abstract

    The reaction of (1-ethoxyethylidene)malononitrile with cyanoacetamide or cyanothioacetamide has yielded...

    A. O. Panaetov, V. D. Strelkov, ... N. Yu. Isupov in Russian Journal of General Chemistry
    Article 01 July 2023
  11. Bridged 1,3(1,5)-benzoxazocines and 1,3,5-benzoxadiazocines as products of the Hantzsch and Biginelli reactions

    The use of substituted salicylaldehyde, a dicarbonyl compound, and a nitrogen base as starting compounds in the Hantzsch and Biginelli reactions...

    Article 30 July 2022
  12. Novel Triazole-, Oxadiazole-, and Pyrazole-Nicotinonitrile Hybrids: Synthesis, DFT Study, Molecular Docking, and Antimicrobial Activity

    Abstract

    The present study is devoted to functionalization of ethyl 2-{[3-cyano-6-(4-cyanophenyl)-4-(2,4-dichlorophenyl)pyridin-2-yl]oxy}acetate ( 1 )...

    Hassan A. El-Sayed, Ahmed H. Moustafa, ... Emad M. Gad in Russian Journal of General Chemistry
    Article 01 April 2022
  13. Condensed azole-based organophosphorus heterocycles

    This review summarizes for the first time the literature data on the methods of constructing with covalent bonds condensed systems based on...

    Mykhailo Yu. Brusnakov, Olexandr V. Golovchenko, ... Volodymyr S. Brovarets in Chemistry of Heterocyclic Compounds
    Article 01 May 2023
  14. New diacetamides based on C-arylphosphorylated derivatives of 2,6-diaminopyridine and 1,3-diaminobenzene

    The reactions of C-arylphosphorylated derivatives of 2,6-diaminopyridine and 1,3-diaminobenzene with acetic anhydride afforded new acylated products....

    E. M. Gibadullina, T. T. Nguyen, ... M. A. Pudovik in Russian Chemical Bulletin
    Article 01 November 2020
  15. Synthesis and Antimicrobial Activity of 2-[5-(R-Benzyl)-4-oxo-1,3-thiazolidin-2-ylidene]-3-oxobutanenitrile and [2-(1-Cyano-2-oxopropylidene)-4-oxo-1,3-thiazolidin-5-ylidene]acetic Acid Derivatives

    Abstract

    The reactions of 2-cyano-3-oxobutanethioamide with ethyl 3-aryl-2-bromopropanoates and dialkyl acetylenedicarboxylates afforded a...

    V. Ya. Horishny, V. S. Matiichuk in Russian Journal of Organic Chemistry
    Article 01 September 2020
  16. Regulating photosalient behavior in dynamic metal-organic crystals

    Dynamic photoactuating crystals have become a sensation due to their potential applications in develo** smart medical devices, molecular machines,...

    Samim Khan, Basudeb Dutta, ... Mohammad Hedayetullah Mir in Communications Chemistry
    Article Open access 14 July 2023
  17. S-Heterocycle Synthesis

    The heterocyclic moieties are fundamental part of widespread diversity of biologically active natural products and synthetic compounds. The...
    Chapter 2022
  18. A new approach to pyrimidine-type heterocycles based on Petrenko–Kritschenko synthesis

    A new series of tetrahydropyrimidines were prepared by employing the Petrenko–Kritschenko reaction between 2-nitrobenzaldehyde and 1,3-dicarbonyl...

    Tung H. To, Dang B. Tran, ... Phong D. Tran in Chemistry of Heterocyclic Compounds
    Article 28 November 2022
  19. Design, synthesis and biological evaluation of some novel N'-(1,3-benzothiazol-2-yl)-arylamide derivatives as antibacterial agents

    In the present work, we carried out hydroxybenzotriazole (HOBT) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDCl)-mediated...

    Swarupa Rani Gurram, Mohammed Afzal Azam in Chemical Papers
    Article 14 June 2021
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