1. Dimerization of Phthalate Ion in Non-Aqueous Solvents

   • V. G. Nosov
   • K. A. Podryadrova
   • A. S. Mereshchenko

   OriginalPaper 17 June 2021 Pages: 753 - 757

   

2. Pseudo-Five-Component Stereoselective Synthesis of Highly Functionalized 3-Azabicyclo[3.3.1]nona-2,7-dienes

   • A. I. Ismiyev
   • V. V. Dotsenko
   • A. M. Magarramov

   OriginalPaper 17 June 2021 Pages: 758 - 767

   

3. 2-(1,2,4-Oxadiazol-5-yl)anilines Based on Amidoximes and Isatoic Anhydrides: Synthesis and Structure Features

   • M. V. Tarasenko
   • V. D. Kotlyarova
   • A. A. Shetnev

   OriginalPaper 17 June 2021 Pages: 768 - 778

   

4. Combination of the S_N^H/aza-Diels–Alder Reactions as Effective Synthetic Approach to 8-Hydroxy(methoxy)-Substituted 2-[6-(1-Methylindol-3-yl)pyridin-2-yl]quinoline Ligands/Fluorophores

   • М. I. Savchuk
   • D. S. Kopchuk
   • О. N. Chupakhin

   OriginalPaper 17 June 2021 Pages: 779 - 784

5. Synthesis, Structure, and Conformational Analysis of N-(2,4-Dichlorophenyl)-2-[6-methyl-2,4-dioxo-3-(thietan-3-yl)-1,2,3,4-tetrahydropyrimidine-1-yl]acetamide

   • V. A. Kataev
   • S. A. Mesheryakova
   • V. V. Kuznetsov

   OriginalPaper 17 June 2021 Pages: 785 - 791

   

6. New Azepine-Furan Spirocyclic Structures in the Reaction of 4-Aroyl-1,2-dihydrobenzo[d]azepines and 2-Aroyl-4,5-dihydrophenanthreno[1,2-d]azepine with Formaldehyde

   • A. A. Zubenko
   • A. S. Morkovnik
   • A. I. Klimenko

   OriginalPaper 17 June 2021 Pages: 792 - 798

   

7. Synthesis and Acid-Base Properties of Tetraphenylporphine Derivatives with Amino Acid “Anchor” Groups

   • Yu. B. Ivanova
   • S. G. Pukhovskaya
   • S. A. Syrbu

   OriginalPaper 17 June 2021 Pages: 799 - 806

   

8. Conformational Analysis and Study of Hydrogen Bonding of Iodobicycloheptanyl-N′-(trifluoromethanesulfonyl) Acetimidamides

   • I. V. Sterkhova
   • T. E. Fedorova
   • M. Yu. Moskalik

   OriginalPaper 17 June 2021 Pages: 807 - 813

   

9. 1,4-Dichalcogenins: Synthesis from Dichloroethenes and Elemental Chalcogens in a Hydrazine Hydrate–Potassium Hydroxide System

   • V. S. Nikonova
   • V. A. Grabelnykh
   • N. A. Korchevin

   OriginalPaper 17 June 2021 Pages: 814 - 819

10. Unusual Behavior of Nitrogen-Containing Organosilicon Compounds in the Reactions with Isocyanates

    • L. O. Belova
    • N. A. Golub
    • A. D. Kirilin

    OriginalPaper 17 June 2021 Pages: 820 - 827

11. exo- and endo-Complexes of Fe(0) with Carbon Allotropic Modifications on the Example of Fullerene С₆₀: a Density Function Theory Study

    • K. V. Zaitsev
    • A. Yu. Oprunenko
    • A. E. Kuznetsov

    OriginalPaper 17 June 2021 Pages: 828 - 834

    

12. Tris(3-fluorophenyl)antimony Dihalides: Synthesis and Structure

    • V. V. Sharutin
    • O. K. Sharutina

    OriginalPaper 17 June 2021 Pages: 835 - 839

    

13. Synthesis and Structure of Triphenylbismuth Dicarboxylates Ph₃Bi[OC(O)R]₂ (R = CH₂C₆H₄F-3, C₆H₃F₂-2,3, C₆HF₄-2,3,4,5)

    • V. V. Sharutin
    • O. K. Sharutina
    • L. V. Koscheeva

    OriginalPaper 17 June 2021 Pages: 840 - 843

    

14. Microcrystalline Anti-Stokes Luminophores NaYF₄ Doped with Ytterbium, Erbium, and Lutetium Ions

    • A. A. Vidyakina
    • D. A. Zheglov
    • A. S. Mereshchenko

    OriginalPaper 17 June 2021 Pages: 844 - 849

    

15. Effect of Phosphonium Ionic Liquids on the Extraction of Rare-Earth Elements(III) with 2,2′-Oxybis(N,N-dioctylacetamide) from Nitric Acid Solutions

    • A. N. Turanov
    • V. K. Karandashev
    • D. V. Baulin

    OriginalPaper 17 June 2021 Pages: 850 - 856

    

16. Synthesis of Copper Nanoplates by Reduction of Cu(II) in the Presence of an Alkoxycarboxylic Acid

    • O. A. Logutenko
    • A. I. Titkov
    • A. M. Vorobyov

    OriginalPaper 17 June 2021 Pages: 857 - 863

    

17. Some Properties of Polycaprolactone Composites with Cellulose Nanocrystals

    • O. V. Surov
    • E. O. Lebedeva
    • A. G. Zakharov

    OriginalPaper 17 June 2021 Pages: 864 - 869

    

18. Chemically Modified Silica in Sorption-Instrumental Analytical Methods

    • G. V. Lisichkin
    • A. Yu. Olenin

    ReviewPaper 17 June 2021 Pages: 870 - 889

19. New Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Zn(II), Cd(II), and Hg(II) Gibberellate Complexes: Synthesis, Structure, and Inhibitory Activity Against COVID-19 Protease

    • Moamen S. Refat
    • T. Altalhi
    • Kehkashan Alam

    OriginalPaper 17 June 2021 Pages: 890 - 896

    

20. Syntheses, Characterization, and Luminescence Properties of Three Coordination Complexes with Sulfonate-Phenol Anions and Trivalent Metal Ions

    • Pengpeng Yin
    • Chang Liu
    • Hongzhe Jin

    OriginalPaper 17 June 2021 Pages: 897 - 903

    

21. Functionalization of 2-Amino-6-thioxouracil as a Precursor for the Synthesis of Some Novel Pyrimidine Heterocycles

    • A. M. Abdel Hamid
    • M. G. Assy
    • M. H. M. Abd El-Azim

    OriginalPaper 17 June 2021 Pages: 904 - 909

22. Synthesis and Properties of Dimercury(I) Crystal Network Constructed with Functionalized Pyrazine Sulfonate and Nitrate Linkers

    • H. Hu
    • J. Quan
    • J.-X. Li

    OriginalPaper 17 June 2021 Pages: 910 - 914

    

23. Synthesis and Antiproliferative Activity of Novel Hydrazono Thiazolidene and Thiazole Derivatives Bearing Rhodanine Moiety

    • M. E. A. Elasasy
    • D. H. Elnaggar
    • A. M. Mohamed

    OriginalPaper 17 June 2021 Pages: 915 - 925

    

24. Synthesis and Pharmacological Activity of Some Novel Macrocyclic Pentapeptidopyridine and 3,5-Bis(tripeptidohydrazone)pyridine Schiff Bases

    • A. E. Amr
    • E. A. Elsayed
    • A. I. Al-Sayady

    OriginalPaper 17 June 2021 Pages: 926 - 931

25. An Improved Process for the Enantioselective Synthesis of HCV NS5A Inhibitor Elbasvir (MK-8742) Chiral Amine Intermediate

    • Vijaya Lakshmi Chapala
    • Naresh Kumar Katari
    • Vishnu Murthy Marisetti

    OriginalPaper 17 June 2021 Pages: 932 - 938

    

26. Crystal Structure of 5ʹ-Oxospiro-(fluorene-9,4ʹ-imidazolidine)-2ʹ-thione and Biological Activity of Its Derivatives

    • P. Marinova
    • M. Marinov
    • N. Stoyanov

    OriginalPaper 17 June 2021 Pages: 939 - 946

    

27. Synthesis of 4-Aryl-6-oxo-5-cyano-1,6-dihydropyridine-2-carboxylic Acids and Their Methyl Esters by Reacting Methyl Acylpyruvates with Malononitrile and Cyanoacetamide

    • M. A. Maryasov
    • N. P. Romashov
    • M. P. Osipova

    BriefCommunication 17 June 2021 Pages: 947 - 950