1. Molecular design of heterocycles. 4. Utilization of computers in the chemistry of heterocycles (review)

   • D. E. Lushnikov
   • E. V. Babaev

   ReviewPaper Pages: 1111 - 1128

2. Pyrylocyanines. 31. Benzopyrylocarbocyanines with bridged groupings in the chromophore

   • M. A. Kudinova
   • E. I. Maiboroda
   • A. I. Tolmachev

   OriginalPaper Pages: 1129 - 1133

3. Catalytic synthesis of aziridine from 1,2-diaminoethane

   • A. A. Anderson
   • S. P. Simonyan
   • M. V. Shimanskaya

   OriginalPaper Pages: 1134 - 1141

4. X-ray emission spectroscopy and electronic structure of heterocyclic compounds 3. Pyrrole

   • V. D. Yumatov
   • N. P. Erchak
   • É. Lukevits

   OriginalPaper Pages: 1142 - 1146

5. Porphyrins 27. Synthesis of metal complexes of cis-1,2-bis(octaethyl-5-porphyrinyl)ethylene and their transformation into the trans isomers

   • G. V. Ponomarev

   OriginalPaper Pages: 1147 - 1151

6. Wolff-kishner reduction of 5-methyl- and 6,6-dimethyl-5-hydroxy-4-oxo-3-phenylpyrrolidino-[1,2-b]pyrazoles

   • N. M. Kuz'menok
   • A. M. Zvonok

   OriginalPaper Pages: 1152 - 1155

7. New reaction of benzocrown derivatives of 5-amino-4-imidazolecarboxamides leading to condensed tetracyclic systems

   • G. V. Fedorov
   • Yu. E. Shapiro
   • S. P. Krasnoshchekaya

   OriginalPaper Pages: 1156 - 1159

8. Imine-enamine tautomerization of dihydroazolopyrimidines 4. Synthesis and tautomerization of 5-(2-hydroxyphenyl)-dihydro-1,2,4-triazolo[1,5-a]pyrimidines

   • S. M. Desenko
   • V. D. Orlov
   • S. A. Komykhov

   OriginalPaper Pages: 1160 - 1162

9. Imine-enamine tautomerism of dihydroazolopyrimidines 5. Steric effects and the tautomeric equilibrium for dihydro-1,2,4-triazolo[1,5-a]pyrimidines

   • S. M. Desenko
   • V. D. Orlov
   • Yu. T. Struchkov

   OriginalPaper Pages: 1163 - 1168

10. Synthesis of benzotristriazole. 4-nitrobenzo[1,2-d:3,4-d′] bistriazole and 4,4′-dicarboxy-5,5′-1H-1,2,3-triazole

    • V. A. Samsonov
    • L. B. Volodarskii
    • G. Kh. Khisamutdinov

    OriginalPaper Pages: 1169 - 1171

11. Reaction of 2-chloroacetyl-1,3-cyclohexanediones with cyclic Schiffs bases. A new approach to 8-aza-D-homogone-1,3,5(10),9(11),13-pentaene-12,17A-dione

    • O. V. Gulyakevich
    • A. L. Mikhal'chuk
    • A. A. Akrem

    OriginalPaper Pages: 1172 - 1177

12. Synthesis and properties of enamines of the phenanthridine series

    • A. G. Mikhailovskii
    • V. S. Shklyaev
    • M. I. Vakhrin

    OriginalPaper Pages: 1178 - 1181

13. Reduction of 4-hydroxy(alkoxy)hexahydropyrimidine-2-thiones and 1,2,3,6-tetrahydropyrimidine-2-thiones by the NaBH₄-CF₃COOH system. Synthesis of hexahydropyrimidine-2-thiones

    • A. D. Shutalev
    • E. N. Komarova
    • L. A. Ignatova

    OriginalPaper Pages: 1182 - 1191

14. Reaction of α-(thio)amidoalkylation in the synthesis of α-cyano-substituted cyclic (thio)ureas and dithiocarbamates

    • A. D. Shutalev

    OriginalPaper Pages: 1192 - 1199

15. Synthesis and some conversions of 4-aryl-6-methyl-2-methoxy(phenyl)-5-nitro-1,4-dihydropyrimidines

    • G. Ya. Remennikov
    • I. V. Boldyrev
    • V. V. Pirozhenko

    OriginalPaper Pages: 1200 - 1205

16. Heteroadamantanes and their derivatives. 23. Reduction of nitroaryl derivatives of 3,6-diazahomoadamantane

    • A. I. Kuznetsov
    • U. Barri
    • K. I. Romanova

    OriginalPaper Pages: 1206 - 1209

17. Cyclocondensation of 4-hydroxy-5,6-diaminopyrimidine with α,β-dihalochalcones

    • N. N. Kolos
    • V. D. Orlov
    • E. V. Zhidkova

    OriginalPaper Pages: 1210 - 1214

18. Derivatives of heterocyclic α-iminocarboxylic acids 2. Conversion of hydrazides of heterocyclic α-iminocarboxylic acids into condensed bicyclic systems

    • R. Nurdinov
    • É. É. Liepin'sh
    • I. Ya. Kalvin'sh

    OriginalPaper Pages: 1215 - 1221

19. Synthesis and properties of certain n-propargylphenothiazines and their cation radicals

    • E. P. Konovalova
    • O. B. Tomilin
    • É. P. Sanaeva

    OriginalPaper Pages: 1222 - 1225

20. Synthesis and properties of anhydride of benzo[k,l]selenoxanthene-3,4-dicarboxylic acid

    • A. V. Guttsait
    • K. A. Balodis
    • I. A. Meirovits

    OriginalPaper Pages: 1226 - 1229

21. A new method of synthesis of 1,2-bis(porphyrinyl-5)ethanes

    • G. V. Ponomarev

    Letters to the Editor Pages: 1230 - 1231

22. Reaction of o-aminophenyldiphenylmethanol with α-acetylenic ketone

    • T. P. Kosulina
    • E. V. Gromachevskaya
    • V. G. Kul'nevich

    Letters to the Editor Pages: 1232 - 1233

23. Derivatives of a new heterocyclic system — 4,11-dihydro-10H-1,2,4-triazolo[1,5-a]pyrimido[6,5-c]benzo[b]pyrans

    • V. D. Orlov
    • N. V. Getmanskii
    • S. A. Komykhov

    Letters to the Editor Pages: 1234 - 1235

24. New synthesis of 7,8-dihydrothiazolo[2,3-i]purine derivatives

    • E. V. Aleksandrova
    • E. V. Rusinova

    Letters to the Editor Pages: 1236 - 1237

25. Synthesis of derivatives of a new thiazolo[2,3-i]purine heteroaromatic system

    • P. M. Kochergin
    • E. V. Aleksandrova
    • M. Yu. Gromov

    Letters to the Editor Pages: 1238 - 1239