1. One-Electron Transfer in Reactions of Stable Organic Radicals with Oxygen

   • O. B. Tomilin
   • O. V. Boyarkina
   • B. S. Tanaseichuk

   OriginalPaper 03 February 2021 Pages: 2049 - 2056

   

2. Synthesis and Properties of N,N′-Disubstituted Ureas and Their Isosteric Analogs Containing Polycyclic Fragments: VI. N-[Fluoro(chloro)phenyl]-N′-(4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptan-1-yl)ureas

   • D. A. Pitushkin
   • V. V. Burmistrov
   • G. M. Butov

   OriginalPaper 03 February 2021 Pages: 2057 - 2066

   

3. New Synthesis of 2,4,6,8-Tetramethyl-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione Using Etidronic Acid as a “Green” Catalyst

   • S. Yu. Panshina
   • O. V. Ponomarenko
   • V. S. Malkov

   OriginalPaper 03 February 2021 Pages: 2067 - 2073

   

4. Reformatsky Reaction of 1-Aryl-3-(2-hydroxyphenyl)prop-2-en-1-ones with Methyl 1-Bromocyclohexanecarboxylate

   • E. A. Nikiforova
   • D. V. Baibarodskikh
   • D. P. Zverev

   OriginalPaper 03 February 2021 Pages: 2074 - 2078

   

5. N-Alkylation of Imidazoles with Dialkyl and Alkylene Carbonates

   • I. S. Gabov
   • L. A. Khamidullina
   • A. V. Pestov

   OriginalPaper 03 February 2021 Pages: 2079 - 2086

   

6. Intramolecular Cycloaddition of [3-(Naphthalen-1-yl)prop-2-yn-1-yl](3-phenylprop-2-en-1-yl)ammonium Bromides and Cleavage of Some of the Obtained Cyclic Salts in Aqueous Alkali

   • E. O. Chukhajian
   • L. V. Ayrapetyan
   • H. A. Panosyan

   OriginalPaper 03 February 2021 Pages: 2087 - 2091

7. Synthesis of 4,4′-Oxydibenzoic Acid Amides and Sulfonamides Containing 2-Arylaminopyrimidine Moieties

   • Zh. V. Ignatovich
   • A. L. Ermolinskaya
   • E. V. Koroleva

   OriginalPaper 03 February 2021 Pages: 2092 - 2097

8. Experimental and Theoretical Conformational Analysis of Tris(4-methylphenyl)phosphine and Its Chalcogenides

   • A. A. Kuznetsova
   • R. R. Ismagilova
   • Ya. A. Vereshchagina

   OriginalPaper 03 February 2021 Pages: 2098 - 2103

   

9. Synthesis and Some Reactions of 6H-Indolo[2,3-b]quinoxalines

   • S. I. Shulga
   • O. S. Shulga

   OriginalPaper 03 February 2021 Pages: 2104 - 2108

10. Amidation of Diamantane with Carboxylic Acid Amides and Carbon Tetrachloride in the Presence of Binder-Free Ni-HY Zeolite

    • R. I. Khusnutdinov
    • N. A. Shchadneva
    • A. N. Khazipova

    OriginalPaper 03 February 2021 Pages: 2109 - 2113

11. Synthesis of Quinolinyl-Substituted Five-Membered Heterocycles and Schiff Bases from 2-(4-Hydroxy-2-methylquinolin-3-yl)acetohydrazide

    • I. L. Aleksanyan
    • L. P. Hambardzumyan

    OriginalPaper 03 February 2021 Pages: 2114 - 2118

12. 1-Carbamoylhydantoins. New Aspects of Reactivity

    • M. A. Kavina
    • V. V. Sizov

    OriginalPaper 03 February 2021 Pages: 2119 - 2131

    

13. Halogenation of Fluoro-Substituted Zinc(II) Tetraphenylporphyrins at the β-Position

    • N. V. Chizhova
    • A. I. Rusanov
    • N. Zh. Mamardashvili

    OriginalPaper 03 February 2021 Pages: 2132 - 2136

14. 1,2,4-Triazole-Based Hybrid Heterocyclic Carbaldehyde Hydrazones and Their Effect on DNA Methylation Level

    • T. R. Hovsepyan
    • M. R. Hakobyan
    • A. A. Harutyunyan

    OriginalPaper 03 February 2021 Pages: 2137 - 2142

15. One-Pot Green Synthesis of 2-Hydroxybenzoyl(cinnamoyl)methanes and 2-Styrylchromones Using Dual-Frequency Ultrasonication

    • N. Vashisth
    • S. P. Sharma
    • Aruna

    OriginalPaper 03 February 2021 Pages: 2143 - 2147

16. Design, Synthesis, and Antifungal Activity of Some New Thiazolo[4,5-d]pyrimidine-5-thione Derivatives

    • A. A. Ghoneim
    • H. Bilel
    • S. M. N. Moustafa

    OriginalPaper 03 February 2021 Pages: 2148 - 2152

    

17. Synthesis and Characterization of Some New Indoline-Based 1,2,4-Triazole Derivatives

    • N. Afshar
    • F. Hatamjafari
    • A. R. Oliaey

    OriginalPaper 03 February 2021 Pages: 2153 - 2158

    

18. Synthesis of the Neurokinin 1 Receptor Antagonist (+)-L-733,060 by Jacobsen’s Hydrolytic Kinetic Resolution

    • D. N. Bhangare
    • V. B. Mahale
    • M. N. Lokhande

    OriginalPaper 03 February 2021 Pages: 2159 - 2164

    

19. Design, Synthesis, and Antimicrobial Evaluation of Novel [1,2,4]Triazolo[3,4-b][1,3,4]thiadiazepine Derivatives

    • A. N. Ayyash

    OriginalPaper 03 February 2021 Pages: 2165 - 2170

20. Stereoselective Cyclopropanation of Arylmethylidenemalononitriles by 2,6-Dimethylquinoline: A Molecular Electron Density Theory Study

    • S. J. Hosseini
    • S. Emamian
    • N. D. Hamzehzadeh

    OriginalPaper 03 February 2021 Pages: 2171 - 2178

    

21. Novel Etodolac-Based 1,2,4-Triazole Derivatives as Antimicrobial Agents: Synthesis, Biological Evaluation, and Molecular Docking Study

    • A. Shaik
    • A. T. Rao
    • P. V. V. N. Kishore

    OriginalPaper 03 February 2021 Pages: 2179 - 2187

    

22. New Synthetic Route to Cinnoline Derivatives and Their Microbiological Activity

    • H. Lettreuch
    • M. Khodja
    • H. Boutoumi

    OriginalPaper 03 February 2021 Pages: 2188 - 2193

23. New Fluorescent Nickel(II) Complexes as a Catalyst for Biodiesel Formation: Synthesis, Structure, Spectral Properties, and DFT Calculations

    • Z. S. Rad
    • M. Pordel
    • A. Davoodnia

    OriginalPaper 03 February 2021 Pages: 2194 - 2200

    

24. Synthesis of [(3S,5R)-3-Hydroxy-5-methylpiperidin-1-yl](2-methylpyridin-3-yl)methanone

    • Qun-Zheng Zhang
    • Zhi-Yuan Li
    • Xun-Li Zhang

    OriginalPaper 03 February 2021 Pages: 2201 - 2206

    

25. A Convenient One-Pot Synthesis of Chalcones and Their Derivatives and Their Antimicrobial Activity

    • R. Salotra
    • D. Utreja
    • P. Sharma

    OriginalPaper 03 February 2021 Pages: 2207 - 2211

26. Bioactive Small Molecules Having a Fatty Residue. Part VI: Synthesis, Cytotoxicity Evaluation, and Molecular Docking Studies of New Pyrimidine Derivatives as Antitumor Agents

    • El-Sayed M. A. Yakout
    • Hayam A. Abd El Salam
    • Galal A. M. Nawwar

    OriginalPaper 03 February 2021 Pages: 2212 - 2221

    

27. Synthesis and Fluoride Detection Properties of a Coumarin Derivative

    • Zhilian Liu
    • Qiang Zhang
    • Shuxiang Zhang

    OriginalPaper 03 February 2021 Pages: 2222 - 2227

    

28. Phosphine-Catalyzed Sequential Michael Addition between α-Aminonitriles and Methyl Acrylate for Cyclization: Synthesis of N-Aryl-Substituted Pyrrolidines

    • H. C. Jang
    • K. R. Sin
    • S. H. Jong

    OriginalPaper 03 February 2021 Pages: 2228 - 2235

29. Synthesis of Macroheterocycles Containing Pyridine-2,6-dicarboxylic and Adipic Acid Ester and Hydrazide Fragments Starting from Tetrahydropyran

    • V. A. Vydrina
    • K. S. Denisova
    • G. Yu. Ishmuratov

    BriefCommunication 03 February 2021 Pages: 2236 - 2239

30. Reaction of Carboxylic Acid Hydrazides with 2,2′-(Carbonothioyldisulfanediyl)diacetic acid in Water as a “Green” Synthesis of N-(4-Oxo-2-sulfanylidene-1,3-thiazolidin-3-yl) Carboxamides

    • V. Ya. Horishny
    • V. S. Matiychuk

    BriefCommunication 03 February 2021 Pages: 2240 - 2243

31. New Reactions of Tropylium Salts with 4-Nitrobenzohydrazide, Semicarbazide, Thiosemicarbazide, and N-Benzylurea

    • L. P. Yunnikova
    • T. A. Akentʼeva
    • Yu. E. Likhareva

    BriefCommunication 03 February 2021 Pages: 2244 - 2247

    

32. Sterically Crowded Quinoxalinophenoxazines Containing a Crown Ether Fragment

    • E. P. Ivakhnenko
    • A. A. Kovalenko
    • V. I. Minkin

    BriefCommunication 03 February 2021 Pages: 2248 - 2250

    

33. Catalytic Synthesis of N-Aryladamantane-1-carboxamides Using Phosphorus Trichloride

    • E. V. Shishkin
    • T. L. Q. Vo
    • N. K. Sokolov

    BriefCommunication 03 February 2021 Pages: 2251 - 2253

34. 3-Methyl-4,5-dihydro-1H-pyrazol-5-one Adduct with 1,4-Diphenylbut-2-ene-1,4-dione in Reactions with Primary Amines

    • A. N. Andin

    BriefCommunication 03 February 2021 Pages: 2254 - 2257

35. Synthesis of Functional Dihydro-1,4-benzoxaselenines from Carvacrol Allyl Ether and Selenium Dihalides

    • M. V. Musalov
    • V. A. Yakimov
    • S. V. Amosova

    BriefCommunication 03 February 2021 Pages: 2258 - 2262