51 - 100 out of 729Page size: 50
  1. 1984

  2. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 10. Isomeric thiazolo[4,5-b]quinoxalines in reactions of N-methylquinoxalinium ions with dithiocarbamates

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N., Petrova, G. M. & Sidorov, E. O., 1 May 1984, In: Chemistry of Heterocyclic Compounds. 20, 5, p. 549-554 6 p.

    Research output: Contribution to journal › Article › peer-review

  3. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 11. Reactions of quinoxalinium salts with thioamides - Simple method for the synthesis of hydrogenated thiazolo[4,5-b]quinoxalines

    Baklykov, V. G., Charushin, V. N., Chupakhin, O. N. & Drozd, V. N., 1 May 1984, In: Chemistry of Heterocyclic Compounds. 20, 5, p. 554-558 5 p.

    Research output: Contribution to journal › Article › peer-review

  4. Direct annelation of six-membered heterocycles with a quinoxaline ring

    Chupakhin, O. N., Charushin, V. N., Ponizovskii, M. G. & Naumova, L. M., 1 May 1984, In: Chemistry of Heterocyclic Compounds. 20, 5, p. 575-576 2 p.

    Research output: Contribution to journal › Letter › peer-review

  5. Direct fusion of a triazine to a pyrazine ring. Synthesis of derivatives of [1,2,4]triazino[5,6-b]quinoxaline

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N. & Naumova, L. M., 1 Sept 1984, In: Chemistry of Heterocyclic Compounds. 20, 9, p. 1057-1058 2 p.

    Research output: Contribution to journal › Letter › peer-review

  6. The reactions of azines on treatment with 1,3-bifunctional nucleophiles

    Charushin, V. N. & Chupakhin, O. N., 31 Oct 1984, In: Russian Chemical Reviews. 53, 10, p. 956-970 15 p.

    Research output: Contribution to journal › Article › peer-review

  7. 1985

  8. CYCLIZATION OF N-ALKYLAZINE CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .14. REACTION OF QUINOXALINE SALTS WITH MONO-DISUBSTITUTED AND N,N'-DISUBSTITUTED AMIDINES

    Naumova, L. M., Charushin, V. N., Chupakhin, O. N. & Izmailova, G. G., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 3, p. 390-395 6 p.

    Research output: Contribution to journal › Article › peer-review

  9. CYCLIZATION OF N-ALKYLAZINE CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .15. ISOMERIZATION OF THIAZOLO[4,5-B]QUINOXALINES IN THE PRESENCE OF ACIDS

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N. & Drozd, V. N., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 3, p. 396-403 8 p.

    Research output: Contribution to journal › Article › peer-review

  10. CYCLIZATION OF N-ALKYLAZINE CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .16. SIGMA-ADDUCTS OF QUINOXALINIUM SALTS WITH AMINES, ALCOHOLS AND ENOLATES AND THEIR PART IN CYCLIZATIONS BY BETA-DICARBONYLIC COMPOUNDS

    Charushin, V. N., Ponizovskii, M. G., Chupakhin, O. N., Sidorov, E. O. & Sosonkin, I. M., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 5, p. 669-677 9 p.

    Research output: Contribution to journal › Article › peer-review

  11. CYCLIZATION OF N-ALKYLAZINE CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .17. ANNELATION OF IMIDAZOLE AND 1,2,4-TRIAZOLE RINGS TO PYRAZINE IN THIOSEMICARBAZIDE INTERACTIONS WITH PYRAZINIUM SALTS

    Baklykov, V. G., Charushin, V. N., Chupakhin, O. N. & Sorokin, N. N., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 7, p. 960-966 7 p.

    Research output: Contribution to journal › Article › peer-review

  12. CYCLIZATION OF N-ALKYLAZINIUM CATIONS BY BIFUNCTIONAL NUCLEOPHILES .18. SYNTHESIS AND STRUCTURE OF HETEROPOLYCYCLIC SYSTEMS ON QUINOXALINE BASIS

    Charushin, V. N., Ponizovskii, M. G., Chupakhin, O. N., Chernyshev, A. I., Malinovskii, T. I., Kravtsov, V. K. & Biyushkin, V. N., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 8, p. 1116-1124 9 p.

    Research output: Contribution to journal › Article › peer-review

  13. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHILS .19. CRYSTAL-STRUCTURE FOR KINETIC REACTION-PRODUCT OF N-METHYLQUINOXALINIUM IODIDE AND THIOACETAMIDE

    Yufit, D. S., Struchkov, Y. T., Drozd, V. N., Baklykov, V. G., Charushin, V. N. & Chupakhin, O. N., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 10, p. 1417-1421 5 p.

    Research output: Contribution to journal › Article › peer-review

  14. CYCLIZATIONS OF AZINES WITH BIFUNCTIONAL NUCLEOPHILES - ONE-STEP APPROACH TO CONDENSED HETEROCYCLES

    Charushin, V. N., Ponizovskii, M. G. & Chupakhin, O. N., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 8, p. 1011-1026 16 p.

    Research output: Contribution to journal › Article › peer-review

  15. HYDRAZONES OF ACETOACETIC ETHER - NOVEL TYPE OF 1,4-DINUCLEOPHILES FOR PYRIDAZINE RING ANNELATIONS

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N. & Pushkareva, T. Y., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 5, p. 707-708 2 p.

    Research output: Contribution to journal › Letter › peer-review

  16. REACTIONS OF N-ALKYLAZINIUM CATIONS .3. PTERIDINIUM SALTS - SYNTHESIS, STRUCTURE AND INTERACTION WITH SIMPLE NUCLEOPHILES

    Kazantseva, A. A., Charushin, V. N., Chupakhin, O. N., Chernyshev, A. I. & Esipov, S. E., 1985, In: Khimiya geterotsiklicheskikh soedinenii. 9, p. 1257-1264 8 p.

    Research output: Contribution to journal › Article › peer-review

  17. A novel heteropolycyclic system from n-methylquinoxalinium iodide and nitroethane

    Chupakhin, O. N., Charushin, V. N., Petrova, G. M. & Alexandrov, G. G., 1 Jan 1985, In: Tetrahedron Letters. 26, 4, p. 515-518 4 p.

    Research output: Contribution to journal › Article › peer-review

  18. Quaternization of pyrido[2,3‐b]pyrazines: ¹H and ¹³C NMR Study

    Chupakhin, O. N., Charushin, V. N., Chernyshev, A. I. & Esipov, S. E., 1 Jan 1985, In: Magnetic Resonance in Chemistry. 23, 6, p. 437-441 5 p.

    Research output: Contribution to journal › Article › peer-review

  19. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 14. Reaction of quinoxalinium salts with mono- and N,N′-disubstituted amidines

    Charushin, V. N., Chupakhin, O. N., Naumova, L. M. & Izmailova, G. G., 1 Mar 1985, In: Chemistry of Heterocyclic Compounds. 21, 3, p. 326-331 6 p.

    Research output: Contribution to journal › Article › peer-review

  20. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 15. Isomerization of thiazolo[4,5-b]quinoxalines in the presence of acids

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N. & Drozd, V. N., 1 Mar 1985, In: Chemistry of Heterocyclic Compounds. 21, 3, p. 331-338 8 p.

    Research output: Contribution to journal › Article › peer-review

  21. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 16. σ-adducts of quinoxalinium salts with amines, alcohols, and enolates and their role in cyclizations with β-dicarbonyl compounds

    Charushin, V. N., Ponizovskii, M. G., Chupakhin, O. N., Sidorov, E. O. & Sosonkin, I. M., 1 May 1985, In: Chemistry of Heterocyclic Compounds. 21, 5, p. 564-572 9 p.

    Research output: Contribution to journal › Article › peer-review

  22. Hydrazones of acetoacetic ester - A new type of 1,4-dinucleophiles for the annelation of a pyridazine ring

    Charushin, V. N., Baklykov, V. G., Chupakhin, O. N. & Pushkareva, T. Y., 1 May 1985, In: Chemistry of Heterocyclic Compounds. 21, 5, p. 600-601 2 p.

    Research output: Contribution to journal › Letter › peer-review

  23. Cyclization of N-alkylammonium cations with bifunctional nucleophiles. 17. Annelation of imidazole and 1,2,4-triazine rings with pyrazines via the reactions of thiosemicarbazides with pyrazinium salts

    Baklikov, V. G., Charushin, V. N., Chupakhin, O. N. & Sorokin, N. N., 1 Jul 1985, In: Chemistry of Heterocyclic Compounds. 21, 7, p. 798-804 7 p.

    Research output: Contribution to journal › Article › peer-review

  24. Cyclization of azines with bifunctional nucleophiles - a one-step route to condensed heterocycles (review)

    Charushin, V. N., Ponizovskii, M. G. & Chupakhin, O. N., 1 Aug 1985, In: Chemistry of Heterocyclic Compounds. 21, 8, p. 839-853 15 p.

    Research output: Contribution to journal › Review article › peer-review

  25. Cyclizations of N-alkylazinium cations with bifunctional nucleophiles. 18. Synthesis and structure of heterocyclic systems based on quinoxaline

    Charushin, V. N., Ponizovskii, M. G., Chupakhin, O. N., Chernyshev, A. I., Klyuev, N. A., Malinovskii, T. I., Kravtsov, V. K. & Biyushkin, V. N., 1 Aug 1985, In: Chemistry of Heterocyclic Compounds. 21, 8, p. 933-941 9 p.

    Research output: Contribution to journal › Article › peer-review

  26. Reactions of N-alkylazinium cations. 3. Quaternary pteridinium salts. Synthesis, structure, and reactions with simple nucleophiles

    Kazantseva, I. V., Charushin, V. N., Esipov, S. E., Chuapkhin, O. N. & Chernyshov, A. I., 1 Sept 1985, In: Chemistry of Heterocyclic Compounds. 21, 9, p. 1048-1055 8 p.

    Research output: Contribution to journal › Article › peer-review

  27. Cyclizations of N-alkylazinium cations with bifunctional nucleophiles. 19. Crystal structure of the kinetic product of the reaction of N-methylquinoxalinium iodide with thioacetamide

    Yufit, D. S., Struchkov, Y. T., Drozd, V. N., Baklykov, V. G., Charushin, V. N. & Chupakhin, O. N., 1 Oct 1985, In: Chemistry of Heterocyclic Compounds. 21, 10, p. 1168-1171 4 p.

    Research output: Contribution to journal › Article › peer-review

  28. 1986

  29. 1H and 13C NMR spectra of tetrahydroquinoxalines condensed with six‐membered heterocycles

    Charushin, V. N., Sorokin, N. N., Chernyshev, A. I., Baklykov, V. G., Ponizovskii, M. G. & Chupakhin, O. N., 1 Jan 1986, In: Magnetic Resonance in Chemistry. 24, 9, p. 777-782 6 p.

    Research output: Contribution to journal › Article › peer-review

  30. REACTIONS OF AZINIUM CATIONS .4. REACTIONS OF QUINOXALINIUM SALTS WITH NITROALKANES - ONE-STEP APPROACH TO TETRAAZAHETEROCYCLES WITH BRIDGEHEAD AND SKELETON STRUCTURE

    Charushin, V. N., Petrova, G. M., Chupakhin, O. N., Sidorov, E. O., Aleksandrov, G. G., Chernyshev, A. I., Klyuev, N. A. & Sorokin, N. N., Mar 1986, In: Khimiya geterotsiklicheskikh soedinenii. 3, p. 389-399 11 p.

    Research output: Contribution to journal › Article › peer-review

  31. SYNTHESIS OF CONDENSED TETRAHYDROPTERIDINES BY CYCLIZATION OF 8-ETHYLPTERIDINIUM CATION WITH DINUCLEOPHILES

    Kazantseva, A. A., Baklykov, V. G., Charushin, V. N. & Chupakhin, O. N., Mar 1986, In: Khimiya geterotsiklicheskikh soedinenii. 3, p. 420-421 2 p.

    Research output: Contribution to journal › Letter › peer-review

  32. Reactions of azinium ions. 4. Reactions of quinoxalinium salts with nitroalkanes - Single-stage path to tetraazaheterocycles with bridged and framework structures

    Charushin, V. N., Chupakhin, O. N., Sidorov, E. O., Aleksandrov, G. G., Chernyshev, A. I., Klyuev, N. A. & Sorokin, N. N., 1 Mar 1986, In: Chemistry of Heterocyclic Compounds. 22, 3, p. 318-328 11 p.

    Research output: Contribution to journal › Article › peer-review

  33. Synthesis of condensed tetrahydropteridines by the cyclization of the 8-ethylpteridinium cation with dinucleophiles

    Kazantseva, I. V., Baklykov, V. G., Charushin, V. N. & Chupakhin, O. N., 1 Mar 1986, In: Chemistry of Heterocyclic Compounds. 22, 3, p. 348-349 2 p.

    Research output: Contribution to journal › Letter › peer-review

  34. REACTIONS OF AZINIUM CATIONS .5. ADDITION OF WATER AND METHANOL TO 1,4-DIAZINIUM CATIONS IN THE PRESENCE OF BASES - EQUILIBRIUM-CONSTANTS AND PMR SPECTRA AT MONO-ADDUCTS AND BIS-ADDUCTS

    Charushin, V. N., Kazantseva, A. A., Ponizovskii, M. G., Egorova, L. G., Sidorov, E. O. & Chupakhin, O. N., Oct 1986, In: Khimiya geterotsiklicheskikh soedinenii. 10, p. 1380-1388 9 p.

    Research output: Contribution to journal › Article › peer-review

  35. Reaction of azinium cations. 5. Addition of water and methanol to 1,4-diazinium cations in the presence of bases. equilibrium constants and PMR spectra of the mono- and diadducts

    Charushin, V. N., Kazantseva, I. V., Ponizovskii, M. G., Egorova, L. G., Sidorov, E. O. & Chupakhin, O. N., 1 Oct 1986, In: Chemistry of Heterocyclic Compounds. 22, 10, p. 1118-1125 8 p.

    Research output: Contribution to journal › Article › peer-review

  36. REACTIONS OF ATZINIUMCATIONS .6. N(1)-ALKYLATED 1,2,4-TRIAZINIUM SALTS - REACTIONS WITH INDOLES - THE 1ST OCCASION OF DOUBLE ADDITION OF NUCLEOPHYLES TO THE TRIAZINE RING

    Alexeev, S. G., Charushin, V. N., Chupakhin, O. N., Shorshnev, S. V., Chernyshev, A. I. & Klyuev, N. A., Nov 1986, In: Khimiya geterotsiklicheskikh soedinenii. 11, p. 1535-1543 9 p.

    Research output: Contribution to journal › Article › peer-review

  37. Reactions of azinium cations. 6. N(1)-alkyl-1,2,4-triazinium salts. Reactions with indoles - The first case of the double addition of nucleophiles to a triazine ring

    Alekseev, S. G., Charushin, V. N., Chupakhin, O. N., Shorshnev, S. V., Chernyshev, A. I. & Klyuev, N. A., 1 Nov 1986, In: Chemistry of Heterocyclic Compounds. 22, 11, p. 1242-1249 8 p.

    Research output: Contribution to journal › Article › peer-review

  38. 1987

  39. NOVEL TRANSFORMATION OF 1,2,4-TRIAZINE RING INTO PYRAZINE DERIVATIVES

    Alekseev, S. G., Charushin, V. N. & Chupakhin, O. N., Feb 1987, In: Khimiya geterotsiklicheskikh soedinenii. 2, p. 280-281 2 p.

    Research output: Contribution to journal › Letter › peer-review

  40. New type of transformation of a 1,2,4-triazine ring to pyrazine derivatives

    Alekseev, S. G., Charushin, V. N. & Chupakhin, O. N., 1 Feb 1987, In: Chemistry of Heterocyclic Compounds. 23, 2, p. 238-239 2 p.

    Research output: Contribution to journal › Letter › peer-review

  41. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHYLES .21. REGIOISOMERIC 1,3,4-THIADIAZINO[5,6-B]QUINOXALINES

    Baklykov, V. G., Charushin, V. N., Chupakhin, O. N. & Drozd, V. N., Apr 1987, In: Khimiya geterotsiklicheskikh soedinenii. 4, p. 557-561 5 p.

    Research output: Contribution to journal › Article › peer-review

  42. OPENING OF IMIDAZOLINE RING IN 1,3,6,10-TETRAAZATETRACYCLO[7.3.02,706,13]TRIDEKA-4,11-DIENES, RESULTING IN DIQUINOXALINO[1,2-A - 2',3'-D]PYRROLES

    Charushin, V. N., Petrova, G. M., Aleksandrov, G. G., Egorova, L. G., Chernyshev, A. I., Sidorov, E. O., Klyuev, N. A. & Chupakhin, O. N., Apr 1987, In: Khimiya geterotsiklicheskikh soedinenii. 4, p. 513-522 10 p.

    Research output: Contribution to journal › Article › peer-review

  43. Cyclization of N-alkyl azinium cations with bifunctional nucleophiles. 21. Regioisomeric 1,3,4-thiadiazino[5,6-b]quinoxalines

    Baklykov, V. G., Charushin, V. N., Chupakhin, O. N. & Drozd, V. N., 1 Apr 1987, In: Chemistry of Heterocyclic Compounds. 23, 4, p. 465-469 5 p.

    Research output: Contribution to journal › Article › peer-review

  44. Imidazoline ring cleavage in 1,3,6,10-tetraazatetracyclo-[7.3.1.02,7.06,13]trideca-4, 11-dienes, leading to the formation of diquinoxalino[1,2-a:2′,3′-d]pyrrole derivatives

    Charushin, V. N., Petrova, G. M., Aleksandrov, G. G., Egorova, L. G., Chernyshev, A. I., Sidorov, E. O., Klyuev, N. A. & Chupakhin, O. N., 1 Apr 1987, In: Chemistry of Heterocyclic Compounds. 23, 4, p. 426-435 10 p.

    Research output: Contribution to journal › Article › peer-review

  45. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .22. CRYSTAL AND MOLECULAR-STRUCTURE OF COMPOUND, CONTAINING CONDENSED TETRAHYDROQUINOXALINE AND 1,3,4-THIADIAZINE RINGS

    Yufit, D. S., Struchkov, Y. T., Drozd, V. N., Charushin, V. N., Baklykov, V. G. & Chupakhin, O. N., May 1987, In: Khimiya geterotsiklicheskikh soedinenii. 5, p. 701-706 6 p.

    Research output: Contribution to journal › Article › peer-review

  46. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 22. Crystal and molecular structure of tetrahydroquinoxaline condensed with the six-membered 1,3,4-thiadiazine ring

    Yufit, D. S., Struchkov, Y. T., Drozd, V. N., Charushin, V. N., Baklykov, V. G. & Chupakhin, O. N., 1 May 1987, In: Chemistry of Heterocyclic Compounds. 23, 5, p. 583-587 5 p.

    Research output: Contribution to journal › Article › peer-review

  47. ANTIMYCOTIC ACTIVITY OF THIAZOLO[4,5-B]QUINOXALINE-2-THIONE

    Petrova, G. M., Charushin, V. N., Shcherbakova, N. G., Golod, M. S. & Chupakhin, O. N., Jul 1987, In: Химико-фармацевтический журнал. 21, 7, p. 842-845 4 p.

    Research output: Contribution to journal › Article › peer-review

  48. Antifungal activity of thiazolo[4,5-b]quinoxaline-2-thiones

    Petrova, G. M., Charushin, V. N., Shcherbakova, N. G., Golod, M. S. & Chupakhin, O. N., 1 Jul 1987, In: Pharmaceutical Chemistry Journal. 21, 7, p. 518-520 3 p.

    Research output: Contribution to journal › Article › peer-review

  49. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHYLES .23. ELECTROCHEMICAL CRITERIA OF ELECTROPHYLIC PROPERTIES OF 1,4-DIAZINIUM CATIONS AND THEIR PARTICIPATION IN CYCLIZATION WITH ACETOACETAMIDE

    Sosonkin, I. M., Kalb, G. L., Kazantseva, A. A., Ponizovskii, M. G., Charushin, V. N. & Chupakhin, O. N., Aug 1987, In: Khimiya geterotsiklicheskikh soedinenii. 8, p. 1110-1117 8 p.

    Research output: Contribution to journal › Article › peer-review

  50. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHYLES .24. SYNTHESIS OF CONDENSED SYSTEMS OF 1,2,4-TRIAZINO[5,6-B]QUINOXALINE AND 1,2,4-OXADIAZINO[5,6-B]QUINOXALINE

    Naumova, L. M., Charushin, V. N. & Chupakhin, O. N., Aug 1987, In: Khimiya geterotsiklicheskikh soedinenii. 8, p. 1118-1121 4 p.

    Research output: Contribution to journal › Article › peer-review

  51. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 23. Electrochemical criteria for electrophilicity in 1,4-diazinium cations and their participation in cyclizations with acetoacetamide

    Sosonkin, I. M., Kalb, G. L., Kazantseva, I. V., Ponizovskii, M. G., Charushin, V. N. & Chupakhin, O. N., 1 Aug 1987, In: Chemistry of Heterocyclic Compounds. 23, 8, p. 888-895 8 p.

    Research output: Contribution to journal › Article › peer-review

  52. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 24. Synthesis of condensed 1,2,4-triazino- and 1,2,4-oxadiazino[5,6-b]quinoxaline systems

    Naumova, L. M., Charushin, V. N. & Chupakhin, O. N., 1 Aug 1987, In: Chemistry of Heterocyclic Compounds. 23, 8, p. 895-899 5 p.

    Research output: Contribution to journal › Article › peer-review

  53. CYCLIZATION OF N-ALKYLAZINIUM CATIONS WITH BIFUNCTIONAL NUCLEOPHILES .25. OXIDATION OF TETRAHYDROQUINOXALINES, CONDENSED WITH 6-MEMBERED HETEROCYCLES

    Charushin, V. N., Naumova, L. M., Ponizovskii, M. G., Baklykov, V. G. & Chupakhin, O. N., Sept 1987, In: Khimiya geterotsiklicheskikh soedinenii. 9, p. 1260-1263 4 p.

    Research output: Contribution to journal › Article › peer-review

  54. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 25. Oxidation of tetrahydroquinoxalines condensed with six-membered ring heterocycles

    Charushin, V. N., Naumova, L. M., Ponizovskii, M. G., Baklykov, V. G. & Chupakhin, O. N., 1 Sept 1987, In: Chemistry of Heterocyclic Compounds. 23, 9, p. 1010-1013 4 p.

    Research output: Contribution to journal › Article › peer-review

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