1. In memory of Professor Valerii Dmitrievich Orlov (1941–2017)

   ANNIVERSARIES AND DATES 27 May 2019 Pages: 283 - 284

   

2. Aurones: Synthesis and Properties

   • Antonina V. Popova
   • Svitlana P. Bondarenko
   • Mykhaylo S. Frasinyuk

   REVIEWS 30 May 2019 Pages: 285 - 299

   

3. Aryl alkynoates in the radical synthesis of coumarins

   • Viktoriia S. Moskvina
   • Volodymir P. Khilya

   OriginalPaper 28 May 2019 Pages: 300 - 306

   

4. Synthesis and transformation features of 2-(2-oxo-2-arylethylidene)-2,3-dihydropyrimidin-4(1Н)-ones

   • Arkadii A. Yavolovskii
   • Lidiya V. Grishchuk
   • Gerbert L. Kamalov

   OriginalPaper 28 May 2019 Pages: 307 - 311

   

5. Contributions by Professor V. D. Orlov to the chemistry of nitrogen heterocycles

   • Nadezhda N. Kolos
   • Sergey A. Komykhov

   OriginalPaper 31 May 2019 Pages: 312 - 323

   

6. Recent progress in the synthesis of morpholines

   • Vitalii A. Palchykov
   • Valentyn A. Chebanov

   OriginalPaper 30 May 2019 Pages: 324 - 332

   

7. Conjugated 2,4,1- and 1,4,3-enynones as polycentricelectrophiles in synthesis of heterocyclic compounds

   • Alexander A. Golovanov
   • Dmitry M. Gusev
   • Simon S. Zlotskii

   OriginalPaper 30 May 2019 Pages: 333 - 348

   

8. Thiopyran-3-one 1,1-dioxides in the synthesis of heterocycles (microreview)

   • Eugene K. Kozirev
   • Vitalii A. Palchykov

   OriginalPaper 27 May 2019 Pages: 349 - 351

   

9. Catalyst-free three-component synthesis of new pyrrolidine derivatives via 1,3-dipolar cycloaddition

   • Yazmin Villarreal
   • Braulio Insuasty
   • Jairo Quiroga

   OriginalPaper 28 May 2019 Pages: 352 - 358

   

10. N-Difluoromethylation of monosubstituted polydentate azoles

    • Kirill I. Petko
    • Taras M. Sokolenko
    • Yurii L. Yagupolskii

    OriginalPaper 01 June 2019 Pages: 359 - 366

    

11. A new method for the construction of [1,2,4]triazolo[1,5-a]pyridine system

    • Volodymyr A. Kovtunenko
    • Lyudmila M. Potikha
    • Taras N. Tarasiuk

    OriginalPaper 01 June 2019 Pages: 367 - 373

    

12. Concurrent pathway and unexpected products in the CuAAC reaction of ethyl prop-2-ynyl methylphosphonate with aromatic azides

    • Nazariy T. Pokhodylo
    • Olga Ya. Shyyka
    • Mykola D. Obushak

    OriginalPaper 27 May 2019 Pages: 374 - 378

    

13. N-Boc-4-aminopyrazole-5-carbaldehydes in Friendländer synthesis of pyrazolo[4,3-b]pyridines

    • Georgiy G. Yakovenko
    • Oleh A. Lukianov
    • Mykhailo V. Vovk

    OriginalPaper 28 May 2019 Pages: 379 - 385

    

14. Synthesis of 7-arylimidazo[1,2-a]pyrazin-8(7H)-one derivatives

    • Svitlana S. Kovalenko
    • Oleksandr G. Drushlyak
    • Alexandre V. Ivachtchenko

    OriginalPaper 28 May 2019 Pages: 386 - 391

    

15. Acetic aldehyde in multicomponent synthesis of azolopyrimidine derivatives in water

    • Irina G. Tkachenko
    • Sergey A. Komykhov
    • Sergey M. Desenko

    OriginalPaper 01 June 2019 Pages: 392 - 396

    

16. Pyrrolo[2,3-d]pyrimidine derivatives in the synthesis of a novel heterocyclic system 2a,5a,7-triazaacenaphthylene

    • Lyubov V. Muzychka
    • Iryna O. Yaremchuk
    • Oleg B. Smolii

    OriginalPaper 25 May 2019 Pages: 397 - 400

    

17. 8-(Methyl(phenyl)sulfonyl)-2,6-dihydroimidazo[1,2-c]- pyrimidin-5(3Н)-ones and 9-(methyl(phenyl)sulfonyl)- 2,3,4,7-dihydro-6H-pyrimido[1,6-a]pyrimidin-6-ones: synthesis and antiviral activity

    • Roman N. Solomyannyi
    • Olga V. Shablykina
    • Vladimir S. Brovarets

    OriginalPaper 29 May 2019 Pages: 401 - 407

    

18. Amides of substituted 3-(pteridin-6-yl)propanoic acids: synthesis, spectral characteristics, and cytotoxic activity

    • Maxim S. Kazunin
    • Oleksii Yu. Voskoboynik
    • Sergiy I. Kovalenko

    OriginalPaper 29 May 2019 Pages: 408 - 415

    

19. Cationic ring contraction of seven-membered cycle of 3,4-dihydro-2H-1,5-benzoxathiepine derivatives

    • Taras M. Tarasiuk
    • Olena O. Shyshkina
    • Yulian M. Volovenko

    OriginalPaper 01 June 2019 Pages: 416 - 420

    

20. Expanding the chemical space of sp³-enriched 4,5-disubstituted oxazoles via synthesis of novel building blocks

    • Evgeniy Y. Slobodyanyuk
    • Andrii A. Andriienko
    • Oleksandr O. Grygorenko

    OriginalPaper 28 May 2019 Pages: 421 - 434

    

21. Synthesis of thieno[2,3-b]pyrrole-2(4)-carboxylic and 2,4-dicarboxylic acids

    • Alina N. Grozav
    • Mariana Z. Fedoriv
    • Mykhailo V. Vovk

    OriginalPaper 27 May 2019 Pages: 435 - 441

    

22. Multicomponent synthesis and molecular structure of 3-amino-2-aroyl(alkoxycarbonyl, arylcarbamoyl)-4-aryl(hetaryl)-5-arylcarbamoyl-6-methylthieno[2,3-b]pyridines

    • Ivan V. Dyachenko
    • Vladimir D. Dyachenko
    • Valentine G. Nenajdenko

    OriginalPaper 29 May 2019 Pages: 442 - 447

    

23. Estimation of biological affinity of nitrogen-containing conjugated heterocyclic pharmacophores

    • Marina V. Kachaeva
    • Nataliya V. Obernikhina
    • Volodymyr S. Brovarets

    OriginalPaper 29 May 2019 Pages: 448 - 454

    

24. The effect of the structure of derivatives of nitrogen-containing heterocycles on their anti-influenza activity

    • Tatyana L. Gridina
    • Alla S. Fedchuk
    • Victor E. Kuz’min

    OriginalPaper 29 May 2019 Pages: 455 - 462

    

25. Peculiarities of cyclization of 2-(2-oxo-2-phenylethylidene)-2,3-dihydropyrimidin-4(1Н)-one with ethyl cyanoacetate

    • Arkadii А. Yavolovskii
    • Lidiya V. Grishchuk
    • Gerbert L. Kamalov

    SHORT COMMUNICATIONS 27 May 2019 Pages: 463 - 464

    

26. Synthesis of chromeno[2,3-c]pyrrol-9(2H)-ones by domino reactions of amino acids with ynones

    • Mariia Miliutina
    • Yevhen Ivon
    • Peter Langer

    OriginalPaper 25 May 2019 Pages: 465 - 468

    

27. An efficient synthesis of novel 11H-chromeno[3',2':3,4]pyrrolo-[2,1-b][1,3]thiazol-11-one heterocyclic system

    • Tetiana V. Shokol
    • Natalia V. Gorbulenko
    • Volodymir P. Khilya

    OriginalPaper 25 May 2019 Pages: 469 - 472

    

28. Synthesis and halocyclization of 2-mercaptonicotinic acid propargyl derivatives

    • Elena V. Kalita
    • Dmitry G. Kim
    • Irina V. Mukhametgaleeva

    OriginalPaper 25 May 2019 Pages: 473 - 477

    

29. Peculiarities of 4-methallyl-5-methallylamino-1,2,4-triazole-3-thione halogenation

    • Maksym M. Fizer
    • Mikhailo V. Slivka
    • Vasil G. Lendel

    OriginalPaper 25 May 2019 Pages: 478 - 480