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1.
Инвентарный номер: нет.
   
   E 43

   
    Electrochemical modeling of the dehydrogenation of heterocycles. Oxidation of 3,4-dihydro-2-quinoxalinone derivatives [Electronic resource] / I. M. Sosonkin, G. N. Strogov, V. N. Charushin, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1981. - Vol. 17, № 2. - P195-197. - Bibliogr. : p. 197 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DEHYDROGENATION -- HETEROCYCLES -- ELECTROCHEMICAL OXIDATION
Аннотация: A study of the electrochemical oxidation of 3,4-dihydro-2-quinoxalinone derivatives on a rotating platinum disk electrode with a ring showed that their reduction includes the successive detachment of two electrons and two protons

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1981, v.17, N 2, p.195.pdf
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2.
Инвентарный номер: нет.
   
   C 47

    Charushin, V. N.
    Ring transformations of 5-nitropyrimidine via inverse diels-alder reactions [Electronic resource] / V. N. Charushin, Y. C. Van der Plas // Tetrahedron Letters. - 1982. - Vol. 23, № 38. - P3965-3968. - Bibliogr. : p. 3968 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5-NITROPYRIMIDINES -- ENAMINES -- DIELS-ALDER REACTIONS
Аннотация: 5-Nitropyrimidine undergoes inverse Diels-Alder cycloadditions with ketene_N,N-, -O,O- acetals and enamines resulting in pyridine derivatives. The 1H NMR evidence for the 1-N,N-diethyl-aminopropyne cycloadduct formation is presented

\\\\expert2\\nbo\\Tetrahedron Letters\\1982, v 23, p.3965.pdf
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3.
Инвентарный номер: нет.
   
   C 47

    Charushin, V. N.
    Ring transformations in reactions of heterocyclic compounds with nucleophiles. The conversion of 5-nitropyrimidine into pyridine derivatives by CH-acitve nitriles [Electronic resource] / V. N. Charushin, H. C. Van der Plas // Recueil des Travaux Chimiques des Pays-Bas. - 1983. - Vol. 102, № 7-8. - P373-377. - Bibliogr. : p. 377 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5-NITROPYRIMIDINES -- CH-ACITVE NITRILES
Аннотация: Nitriles R–CH2CN where R is CN, SO2C6H5, C6H4-NO2-p, C6H4-CF3-m, are effective reagents for converting 5-nitropyrimidine (1) into 2-amino-5-nitro-3-R-pyridines (7). In reactions of 1 with cyanoacetic acid derivatives (methyl, ethyl, tert-butyl esters), 3-cyano-5-nitro–2(1H)-pyridone is formed in addition to 7. Ketonic nitriles, such as 3-oxobutyronitrile and 3-oxo–3-phenylpropionitrile, react with 1 to form 2-methyl- and 2-phenyl-5-nitro-3-cyanopyridine, respectively. Plausible mechanisms are discussed. The reaction of 1 with N-(cyanoacetyl)carbamate provides a facile synthetic route to 1,2,3,4-tetrahydro-6-nitropyrido[2,3-d]pyrimidine-2,4-dione.

\\\\expert2\\nbo\\Recueil des Travaux Chimiques des Pays-Bas\\1983. V. 102, N 7-8. P. 377.pdf
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4.
Инвентарный номер: нет.
   
   D 62

   
    Direct fusion of a triazine to a pyrazine ring. Synthesis of derivatives of [1,2,4]triazino[5,6-b]quinoxaline [Electronic resource] / V. N. Charushin, V. G. Baklykov, O. N. Chupakhin, L. M. Naumova // Chemistry of Heterocyclic Compounds. - 1984. - Vol. 20, № 9. - P1057-1058. - Bibliogr. : p. 1058 (2 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
TRIAZINES -- PYRAZINES

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1984, v.20, N 9, p. 1057.pdf
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5.
Инвентарный номер: нет.
   
   C 98

   
    Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 15. Isomerization of thiazolo[4,5-b]quinoxalines in the presence of acids [Electronic resource] / V. N. Charushin, V. G. Baklykov, O. N. Chupakhin, V. N. Drozd // Chemistry of Heterocyclic Compounds. - 1985. - Vol. 21, № 3. - С. 331-338. - Bibliogr. : p. 337-338 (21 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ISOMERIZATION -- CHLOROFORM -- QUINOXALINIUM CATION
Аннотация: 4-Alkyl-2-phenyl-3a,4,9,9a-tetrahydrothiazolo[4,5-b]quinoxalines undergo isomerization in chloroform in the presence of acids to the regioisomeric (with respect to them) 9-alkyl-substituted derivatives. Under the same conditions 2,4-dimethyl-3a,4-9,9a-tetrahydrothiazolo [4,5-b]quinoxaline undergoes isomerization to 4-methyl-1H-2,3,3a,4,9,9a-hexahydropyrrolo[2,3-b]quinoxaline-2-thione. It was demonstrated by means of deuterium labels that in both cases the isomerization proceeds through a step involving dissociation to a quinoxalinium cation and the corresponding thioamide

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1985, v.21, N 3, p. 331.pdf
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6.
Инвентарный номер: нет.
   
   A 32

    Alekseev, S. G.
    New type of transformation of a 1,2,4-triazine ring to pyrazine derivatives (Letter) [Electronic resource] / S. G. Alekseev, V. N. Charushin, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 2. - С. 238-239. - Bibliogr. : p. 239 (6 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRAZINE DERIVATIVES -- 1,2,4-TRIAZINES

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 2, p. 238.pdf
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7.
Инвентарный номер: нет.
   
   N 30

    Naumova, L. M.
    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 [Electronic resource] / L. M. Naumova, V. N. Charushin, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 8. - С. 895-899. - Bibliogr. : p. 898-899 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CYCLIZATION -- QUINOXALINUM SALTS -- AMIDHYDRAZONES
Аннотация: Cyclization of quinoxalinium salts with amidoximes and amidhydrazones yields partially hydrogenated derivatives of new 1,2,4-oxadiazino- and 1,2,4-triazino[5,6-b]quinoxaline heterocyclic systems.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 8, p. 895.pdf
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8.
Инвентарный номер: нет.
   
   I-55

   
    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 [Electronic resource] / V. N. Charushin, G. M. Petrova, G. G. Aleksandrov, L. G. Egorova, A. I. Chernyshev, E. O. Sidorov, N. A. Klyuev, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 4. - С. 426-435. - Bibliogr. : p. 435 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBON ATOM -- ALCOHOLS -- THIOLS
Аннотация: Dibenzo[d,k]-1,3,6,10-tetraazatetracyclo[7.3.1.02,7.06,13]trideca-4,11-dienes undergo addition reactions at the C(2) carbon atom with alcohols and thiols, accompanied by cleavage of the C-N bond of the imidazoline ring, to generate diquinoxalino[1,2-a∶2′,3′-d]pyrrole derivatives.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 4, p. 426.pdf
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9.
Инвентарный номер: нет.
   
   C 47

    Charushin, V. N.
    Reactions of Azines with Bifunctional Nucleophiles: Cyclizations and Ring Transformations [Electronic resource] / V. N. Charushin, O. N. Chupakhin, H. C. Van der Plas // Advances in Heterocyclic Chemistry. - 1988. - Vol. 43 (C). - С. 301-353. - Bibliogr. : p. 347-353 (200 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AZINES -- BIFUNCTIONAL REAGENTS -- CYCLOADDUCTS
Аннотация: Reactions of azines with bifunctional nucleophiles can give rise to several cycloadducts, the structure depending on the nature of reagents, the structure of the azine substrate, and the reaction conditions. Three types of cycloadducts are proposed to be formed in reactions of azines with such 1,3-N,C-dinucleophiles as acetamidines and acetimino esters. Ortho-cyclization products can usually be isolated, while meta- and para-bridged cycloadducts are unstable and are often transformed into other heterocyclic systems. Their presence as intermediates can, however, often is rationalized by spectroscopic methods or 15N-labeling studies. Many of the reactions discussed provide a very convenient synthetic route to a great variety of azine derivatives. It seems to be a very interesting and promising area of heterocyclic chemistry and there is no doubt that further investigations into this field also allow new syntheses of useful compounds to be developed

\\\\expert2\\nbo\\Advances in Heterocyclic Chemistry\\1988. V. 43 (C). P. 301-353.pdf
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10.
Инвентарный номер: нет.
   
   C 98

   
    Cyclization of azinium cations with bifunctional nucleophiles. 27. Actoacetamides in synthesis of derivatives of a new heterocyclic system of pyrrolo[3,2-E]-1,2,4-triazine [Electronic resource] / S. G. Alekseev, V. N. Charushin, O. N. Chupakhin, G. G. Aleksandrov, S. V. Shorshnev, A. I. Chernyshev // Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. - 1989. - Vol. 38, № 7. - С. 1501-1507. - Bibliogr. : p. 1507 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRROLO-1,2,4-TRIAZINES -- NUCLEOPHILIC DIADDITION -- ACETOACETOAMIDES
Аннотация: A new approach to the synthesis of condensed pyrrolo-1,2,4-triazines was carried out, based on the nucleophilic diaddition of acetoacetoamides to 1,2,4-triazine derivatives

\\\\expert2\\nbo\\Russian Chemical Bulletin\\1989. V. 38, N 7. P. 1501.pdf
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11.
Инвентарный номер: нет.
   
   B 39

   
    Behavior of Monocyclic 1,2,4-Triazines in Reactions with C-, N-, O-, and S-Nucleophiles [Electronic resource] / V. N. Charushin, S. G. Alexeev, O. N. Chupakhin, H. C. Van der Plas // Advances in Heterocyclic Chemistry. - 1989. - Vol. 46 (C). - С. 73-142. - Bibliogr. : p. 135-142 (200 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRIAZINES -- NITROGEN-CONTAINING HETEROCYCLES
Аннотация: Among the six-membered nitrogen-containing heterocycles the 1,2,4-triazines have attracted the attention of chemists for a long time. This is due to the fact that many 1,2,4-triazine derivatives are biologically active and are used in medicine and agriculture. Moreover, 1,2,4-triazines are of chemical interest. They proved to be very susceptible to attack by all kinds of nucleophiles, leading to the addition, and subsequently either substitution or cyclization, and ring transformation. This continuing and lively interest in this area of heterocyclic chemistry has produced a great number of publications and patent applications. This chapter concentrates on the behavior of monocyclic 1,2,4-triazines in reactions with C-, N-, 0-, and S-nucleophiles, because the important features of general character established for simple 1,2,4-triazines can evidently be applied to other derivatives including condensed 1,2,4-triazines.

\\\\expert2\\nbo\\Advances in Heterocyclic Chemistry\\1988. V. 46 (C). P. 73-142.pdf
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12.
Инвентарный номер: нет.
   
   C 98

   
    Cyclizations of N-alkyl-substituted azinium cations with bifunctional nucleophiles. 28. Orientation of the nucleophile in the reaction of quinoxalinium salts with indan-1,3-dione [Electronic resource] / G. M. Petrova, M. G. Ponizovskii, V. N. Charushin, G. G. Aleksandrov, E. O. Sidorov, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1990. - Vol. 26, № 5. - С. 565-572. - Bibliogr. : p. 572 (12 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
QUINOXALINUM SALTS -- C-NUCLEOPHILES -- AZINIUM CATIONS
Аннотация: In reactions with quinoxalinium salts in alcoholic-base media indan-1,3-dione acts as a C nucleophile, adding at the 2 or 3 position of the heterocycle to give the corresponding ylidene derivatives; attack by the nucleophile at the C(3) atom (the Β position relative to the quaternary nitrogen atom) is preceded by addition of alcohol at the a position. Dissociative substitution at the C(2) atom in 2-alkoxy-3-(1,3-dioxoindan-2-ylidene)-1,2,3,4-tetrahydroquinoxalines by another nucleophile makes it possible to regard lyate complexes as probable intermediates in cyclizations of 1,4-diazinium salts with dinucleophiles.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1990, v.26, N 5, p.565.pdf
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13.
Инвентарный номер: нет.
   
   C 98

   
    Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 29. Synthesis of a novel 1,3,4-thiadiazolo-[2,3-a]quinoxalino[2,3-d]pyrrole heterocyclic system [Electronic resource] / V. G. Baklykov, V. N. Charushin, O. N. Chupakhin, G. G. Aleksandrov // Chemistry of Heterocyclic Compounds. - 1990. - Vol. 26, № 5. - С. 592-597. - Bibliogr. : p. 597 (10 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ACETYLACETONE -- ACETOACETATE ESTERS
Аннотация: 1,4,4a,5,10,10a-Hexahydro-1,3,4-thiadiazino[5,6-b]quinoxalines react with acetylacetone and acetoacetate esters upon heating in ethanol to give derivatives of a novel heterocyclic system, hexahydro-1,3,4-thiadiazolo[2,3-a]quinoxalino[2,3-d]pyrrole

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1990, v.26, N 5, p.592.pdf
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14.
Инвентарный номер: нет.
   
   B 43

   
    Benzimidazo[l,2-a]pyrazolo[l,5-c]quinazoline: a novel heterocyclic system [Electronic resource] / G. N. Lipunova, G. A. Mokrushina, E. B. Granovskaya, O. M. Chasovskikh, V. N. Charushin // Mendeleev Communications. - 1996. - Vol. 6, № 1. - P15-17
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Heating of ethyl 3-[beta-(benzimidazol-2-yl)hydrazine]-2-(polyfluorobenzoyl)acrylates in acetonitrile with potassium fluoride or triethylbenzyl ammonium chloride leads to derivatives of novel heterocyclic systems of benzimidazo[l,2-a]pyrazolo- [1,5-c]quinazoline

\\\\expert2\\nbo\\Mendeleev Communications\\1996, v.6, N 1. p.15.pdf
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15.
Инвентарный номер: нет.
   
   N 89

   
    Novel pentacyclic fluoroquinolones [Electronic resource] / G. N. Lipunova, G. A. Mokrushina, E. V. Nosova, L. I. Rusinova, V. N. Charushin // Mendeleev Communications. - 1997. - Vol. 7, № 3. - P109-110
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Heating of ethyl 3-[betaX-(benzazol-2-yl)hydrazino]-2-(polyfluorobenzoyl)acrylates in acetonitrile with DBU yields derivatives of 4-oxo-4H-benzazolo[2’,3’:3,4][1,2,4]triazino[5,6,1-i,j]quinoline-5-carboxylic acids, representing a novel heterocyclic systems

\\\\expert2\\nbo\\Mendeleev Communications\\1997, v.7, N 3. p.109.pdf
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16.
Инвентарный номер: нет.
   

   
    1,3,4-Oxa(thia)diazino [i,j]-annelated quinolines: a new type of key intermediate in the synthesis of tricyclic fluoroquinolones [Electronic resource] / G. N. Lipunova, E. V. Nosova, V. N. Charushin, L. P. Sidorova, O. M. Chasovskikh // Mendeleev Communications. - 1998. - Vol. 8, № 4. - P131-132
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The synthesis of new derivatives of 1,3,4-oxa(thia)diazino[6,5,4-i,j]quinolines, which have a structure that is very similar to the ofloxacin skeleton, by intramolecular cyclizations of ethyl 3-(R-carbonylhydrazino)- and 3-(R-thiocarbonylhydrazino)-substituted 2-polyfluorobenzoyl acrylates, is described??????

\\\\expert2\\nbo\\Mendeleev Communications\\1998, v.8, N 4. p.131.pdf
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17.
Инвентарный номер: нет.
   
   N 89

   
    Novel 1-trifluoromethyl substituted 1,2-ethylenediamines and their use for the synthesis of fluoroquinolones [Text] / A. Y. Aizikovich, M. V. Nikonov, M. I. Kodess, V. Yu. Korotaev, V. N. Charushin, O. N. Chupakhin // Tetrahedron. - 2000. - Vol. 56, N 13. - P1923-1927
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A common approach to the synthesis of 1-trifluoromethyl-1,2-ethylenediamines was deweloped. Based on these original building blocks the new derivatives of N-substituted fluoroquinolones bearing the trifluoromethyl group were obtined

\\\\expert2\\nbo\\Tetrahedron\\2000, v.56, p. 1923-1927, . Aizikovich.pdf
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18.
Инвентарный номер: нет.
   
   F 70

   
    Fluoro-containing Heterocycles: VI. New Derivatives of 1,3,4-Thiadiazino[6,5,4-i,j]quinoline [Electronic resource] / E. V. Nosova, G. N. Lipunova, L. P. Sidorova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 8. - P1169-1176
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of new tricyclic fluoroquinolones was prepared by replacing fluorine atoms in derivatives of 2-R-8-Y-7-oxo-9,10-difluoro-7H-1,3,4-thiadiazino[6,5,4-i,j]quinoline-6-carboxylic acids. In acids and esters containing a hydrogen atom in position 8 occurred replacement of F10 by amine rests, and in compounds with a fluorine in position 8 was substituted either F8or F10 and F8depending on the amine character

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (8), 1169.pdf
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19.
Инвентарный номер: нет.
   
   F 70

   
    Fluoro-containing Heterocycles. IV. Synthesis of Benzimidazole Derivatives [Electronic resource] / S. K. Kotovskaya, N. M. Perova, Z. M. Baskakova, S. A. Romanova, V. N. Charushin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 4. - P564-569
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 2-Mercapto-5,6-difluorobenzimidazole reacts with aliphatic and alicyclic ketones in acetic acid in the presence of catalytic amount of sulfuric acid to afford fluorinated derivatives of 2,3-disubstituted benz[4,5]imidazo[2,1-b][1,3]thiazoles. Reaction with aromatic -haloketones occurs in another way: to furnish 2-phenylacylthio-5,6-difluorobenzimidazoles that in the system acetic anhydride-pyridine undergo cyclization into the corresponding fluorinated derivatives of benz[4,5]imidazo[2,1-b][1,3]thiazoles

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (4), 564.pdf
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20.
Инвентарный номер: нет.
   
   F 70

   
    Fluoro-containing Heterocycles: V. Cyclization of 3-Azolylamino-2-polyfluorobenzoylacrylates [Electronic resource] / G. N. Lipunova, E. V. Nosova, M. I. Kodess, V. N. Charushin, Yu. A. Rozin, O. M. Chasovskikh // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 4. - P570-576
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The heating of ethyl 3-azolylamino-2-polyfluorobenzoylacrylates in acetonitrile in the presence of KF gave rise to derivatives of 1-azolyl-substituted quinolones or azolo[1,5-a]pyrimidines??

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (4), 570.pdf
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