1. Gala occasion for Soviet scientists

   Announcement Pages: 379 - 380

2. Photochemistry of quaternary salts of aromatic heterocycles and some of their mesoionic derivatives (Review)

   • A. V. El'tsov
   • V. M. Grebenkina
   • V. S. Kuznetsov

   ReviewPaper Pages: 381 - 392

3. Effect of structural factors on the disintegration of the molecular ions of nitrophenylisoxazoles during electron impact

   • K. K. Zhigulev
   • R. A. Khmel'nitskii
   • N. M. Przheval'skii

   OriginalPaper Pages: 393 - 396

4. Thermal isomerization of the isoxazole ring and rearrangement processes in the mass spectra of 3-aryl-5-methylisoxazole-4-carboxylic acids

   • K. K. Zhigulev
   • R. A. Khmel'nitskii
   • M. A. Panina

   OriginalPaper Pages: 397 - 399

5. Synthesis and study of the luminescence properties of anhydrides and n-phenylimides of 4-(2-aryl-1,3,4-oxadiazol-5-yl)naphthalic acids

   • S. E. Kovalev
   • B. M. Krasovitskii
   • N. A. Popova

   OriginalPaper Pages: 400 - 402

6. Research on the chemistry of phenoxazines

   • I. Ya. Postovskii
   • K. I. Pashkevich
   • G. B. Afanas'eva

   OriginalPaper Pages: 403 - 405

7. Reaction of sulfolenes and their derivatives with some sulfur-containing nucleophiles

   • T. é. Bezmenova
   • T. N. Varshavets
   • A. Ya. Bezmenov

   OriginalPaper Pages: 406 - 408

8. Fluorosulfonyl-containing heterocyclic compounds

   • G. A. Sokol'skii
   • V. M. Pavlov
   • I. L. Knunyants

   OriginalPaper Pages: 409 - 412

9. Spectroscopic study of organosilicon derivatives of thiophene

   • S. Ya. Khorshev
   • N. S. Vyazankin
   • V. Z. Anisimova

   OriginalPaper Pages: 413 - 417

   

10. Investigation of h complexes of 2-thienyl phenyl ketones by IR spectroscopy

    • N. F. Pedchenko
    • N. D. Trusevich
    • V. F. Lavrushin

    OriginalPaper Pages: 418 - 420

11. Cyclization of some substituted 2-(n-acylthioureido)-3-carbethoxythiophenes

    • A. A. Dobosh
    • S. M. Khripak
    • I. V. Smolanka

    OriginalPaper Pages: 421 - 423

12. 5,6-Trimethylenethiapyrylium and 5,6,7,8-tetrahydrothiochromylium salts

    • V. G. Kharchenko
    • S. K. Klimenko
    • M. N. Berezhnaya

    OriginalPaper Pages: 424 - 427

13. Benzazoles and naphthazoles

    • G. N. Lipunova
    • N. N. Gulemina
    • N. P. Bednyagina

    OriginalPaper Pages: 428 - 433

14. Cyclization of benzoylcyanothioacetic acid arylamides

    • R. G. Dubenko
    • E. F. Gorbenko

    OriginalPaper Pages: 434 - 436

15. Semicarbazones and thiosemicarbazones of the heterocyclic series

    • A. B. Tomchin
    • I. S. Ioffe
    • Yu. V. Lepp

    OriginalPaper Pages: 437 - 442

16. Reactions of N-acylated ethyleneimines with thioacetic acid and hydrogen sulfide

    • A. A. Yamontaite
    • G. K. Krasil'nikova
    • O. V. Kil'disheva

    OriginalPaper Pages: 443 - 446

17. Indole derivatives

    • N. N. Suvorov
    • V. S. Velezheva
    • E. N. Gordeev

    OriginalPaper Pages: 447 - 449

18. Electronic spectra of the ionic forms ofα,Β-unsaturated ketones — Indole derivatives

    • S. V. Tsukerman
    • A. I. Bugai
    • V. F. Lavrushin

    OriginalPaper Pages: 450 - 454

19. Hydrogenation of vinylpyridines and styrene in the presence of the palladium chlorodimethylsulfoxide complex

    • N. M. Nazarova
    • L. Kh. Freidlin
    • Yu. A. Kopyttsev

    OriginalPaper Pages: 455 - 456

20. 4-Azaindane-1,3-dione derivatives i. study of the tautomeric and prototropic equilibria of some analogs of 4-azaindane-1,3-diones

    • O. Ya. Neiland
    • S. V. Kalnin'
    • A. Ya. Ozola

    OriginalPaper Pages: 457 - 459

21. Investigation of lactams

    • V. G. Smirnova
    • A. B. Grigor'ev
    • R. G. Glushkov

    OriginalPaper Pages: 460 - 462

22. Lactam acetals

    • V. G. Granik
    • A. M. Zhidkova
    • Yu. N. Sheinker

    OriginalPaper Pages: 463 - 465

23. Reactions of cyclammonium cations

    • A. K. Sheinkman
    • M. M. Mestechkin
    • Yu. B. Vysotskii

    OriginalPaper Pages: 466 - 470

24. Vibrational spectra of pyrazole in various aggregate states and their interpretation

    • V. S. Troitskaya
    • N. D. Konevskaya
    • V. I. Tyulin

    OriginalPaper Pages: 471 - 476

25. Transformations of substituted tetrahydro-8h-indeno[1,2-d]imidazoles in concentrated sulfuric acid

    • A. K. Aren
    • F. A. Grunsberg
    • I. K. Yurgevitsa

    OriginalPaper Pages: 477 - 479

26. 5-Fluoro-4-alkyl(aryl)barbituric acids

    • I. V. Vigalok
    • Yu. A. Fedotov
    • L. S. Afonskaya

    OriginalPaper Pages: 480 - 481

27. Study of the nucleophilic substitution reactions of 2,4,10-trichloropyrimido[5,4-b]quinoline

    • N. E. Britikova
    • L. A. Belova
    • A. S. Elina

    OriginalPaper Pages: 482 - 484

28. Heterocyclic analogs of pleiadiene

    • V. I. Sokolov
    • A. F. Pozharskii
    • B. I. Ardashev‡

    OriginalPaper Pages: 485 - 488

29. Synthesis of triazolones and C-aminotriazoles by thermal condensation of carbamidoamidrazones

    • G. S. Gol'din
    • V. G. Poddubnyi
    • E. S. Smirnova

    OriginalPaper Pages: 489 - 490

30. Condensation of protic salts of N-alkyl-substituted C-amino-sym-trlazoles withΒ-diketones andΒ-chlorovinyl ketones

    • G. M. Golubushina
    • G. N. Poshtaruk
    • V. A. Chuiguk

    OriginalPaper Pages: 491 - 494

31. Reactions of 2- and 4-(Β-ethoxyvinyl) pyrylium salts with nucleophiles

    • G. N. Dorofeenko
    • V. V. Mezheritskii
    • A. L. Vasserman

    Letters to the Editor Pages: 495 - 495

32. Debenzylation of N-benzylazoles

    • B. A. Tertov
    • V. V. Bessonov
    • A. S. Morkovnik

    Letters to the Editor Pages: 496 - 496

33. Cyclization of 4,4-dinitrobutenoic acid esters to 3-nitroisoxazoline N-oxides

    • A. L. Fridman
    • F. A. Gabitov
    • V. S. Zalesov

    Letters to the Editor Pages: 497 - 497

34. Synthesis of 1,3-dihydro-5-alkyl-2H-1,4-benzodiazepin-2-ones

    • Yu. S. Shabarov
    • T. P. Surikova
    • S. S. Mochalov

    Letters to the Editor Pages: 498 - 499