1. Search for biologically active substances among heteroaromatic compounds (review)

   • N. V. Subba Rao

   ReviewPaper Pages: 227 - 243

2. Synthesis and hydrolysis of 5-nitrofurandicarboxylic acid esters

   • V. A. Buevich
   • L. I. Deiko
   • V. V. Perekalin

   OriginalPaper Pages: 244 - 246

3. Nitration of 2- and 4-[2-(2-furyl)vinyl]thiazole derivatives

   • N. O. Saldabol
   • Yu. Yu. Popelis

   OriginalPaper Pages: 246 - 249

4. Electrochemical reduction of pyrylium salts in an aprotic medium

   • N. T. Berberova
   • G. N. Dorofeenko
   • O. Yu. Okhlobystin

   OriginalPaper Pages: 250 - 253

5. synthesis and some transformations of 4-oxo-2-(β-ethoxyvinyl)-4H-1,3-benzoxazinium salts

   • G. N. Dorofeenko
   • V. V. Mezheritskii
   • L. G. Minyaeva

   OriginalPaper Pages: 253 - 259

6. Condensation of 2-alkyl-4-oxo-1,3-benzoxazinium salts with carbonyl compounds and their heteroanalogs

   • V. V. Mezheritskii
   • L. G. Minyaeva
   • G. N. Dorofeenko

   OriginalPaper Pages: 260 - 264

7. 5-Alkoxy-2-vinyloxazolidines

   • V. P. Semenov
   • I. M. Stroiman
   • K. A. Ogloblin

   OriginalPaper Pages: 264 - 268

8. Action of alkali metals in liquid ammonia on substituted thiophenes

   • Ya. L. Gol'dfarb
   • E. P. Zakharov

   OriginalPaper Pages: 269 - 272

9. Thiazolocyanines

   • E. D. Sych
   • O. V. Moreiko
   • G. G. Dyadyusha

   OriginalPaper Pages: 273 - 277

10. structure of 4,4,6-trimethyl-2-mylamino-5,6-dihydro-4H-1,3-thiazines and -oxazines

    • E. M. Peresleni
    • A. P. Engoyan
    • B. V. Unkovskii

    OriginalPaper Pages: 278 - 284

11. Rearrangement of the semidine type in the indole series. Synthesis of 2-arylamino-3-acetamidoindoles

    • G. N. Kurilo
    • N. I. Rostova
    • A. N. Grinev

    OriginalPaper Pages: 284 - 287

12. Indole derivatives

    • V. N. Borisova
    • E. N. Gordeev
    • N. N. Suvorov

    OriginalPaper Pages: 288 - 290

13. Indole derivatives

    • V. S. Velezheva
    • V. P. Sevodin
    • N. N. Suvorov

    OriginalPaper Pages: 290 - 297

14. Pyrroloquinolines

    • A. P. Gryaznov
    • R. N. Akhvlediani
    • N. N. Suvorov

    OriginalPaper Pages: 298 - 304

15. 1-Acyl-3-arylazoindoles in the synthesis of indolo[1,2-c]quinazolines

    • V. I. Shvedov
    • G. N. Kurilo
    • A. N. Grinev

    OriginalPaper Pages: 305 - 306

16. Introduction of substituents in the pyridine proton of 7-azaindoline

    • D. M. Krasnokut-skaya
    • L. N. Yakhontov

    OriginalPaper Pages: 307 - 311

17. Diquinolyls

    • A. K. Sheinkman
    • V. N. Kalafat
    • N. A. Klyuev

    OriginalPaper Pages: 311 - 316

18. Polymethine dyes — Furo[3,2-f]quinol-7-yl and furo[3,2-f]quinol-9-yl derivatives

    • P. I. Abramenko
    • V. G. Zhiryakov

    OriginalPaper Pages: 316 - 319

19. Pyrimidine-pyrimidylidene tautomerism of some 4-pyrimidylmalonic acid derivatives

    • V. V. Lapachev
    • O. A. Zagulyaeva
    • V. P. Mamaev

    OriginalPaper Pages: 319 - 322

20. Derivatives of condensed pyrimidine, pyrazine, and pyridine systems

    • A. F. Keremov
    • E. M. Peresleni
    • T. S. Safonova

    OriginalPaper Pages: 322 - 325

21. Some properties of 1-oxo-4-hydroxypyridazino[4,5-b]quinoxaline

    • T. G. Koksharova
    • V. N. Konyukhov
    • N. S. Utyuganova

    OriginalPaper Pages: 326 - 329

22. Acylation of 1-oxo-4-hydroxypyridazino[4,5-b]quinoxaline

    • T. G. Koksharova
    • V. N. Konyukhov
    • N. S. Utyuganova

    OriginalPaper Pages: 330 - 333

23. Syntheses of bisheterocycles from 2-hydrazino-3-aminopyridine

    • G. A. Mokrushina
    • I. Ya. Postovskii
    • S. K. Kotovskaya

    OriginalPaper Pages: 334 - 336

24. Reaction of 2,2′,3,3′-tetrachloro-6,6′-diquinoxalyl with nucleophilic reagents

    • V. V. Titov
    • L. F. Kozhokina

    OriginalPaper Pages: 337 - 339

25. Reaction of 1,3,5-triphenylverdazyl with bromodicyanomethane

    • E. I. Tomilenko
    • V. I. Staninets
    • G. P. Vdovin

    Letters to the Editor Pages: 340 - 340

26. Ring-chain tautomerism of 2-alkylaminotetrahydropyrans and -furans

    • S. L. Zhdanov
    • A. A. Potekhin

    Letters to the Editor Pages: 341 - 341

27. Robert Burns Woodward (on his 60th birthday)

    • A. N. Kost
    • L. N. Yakhontov

    Jubilees and Dates Pages: 342 - 343