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1

Synthesis of thermotropic aromatic polyesters having a heterocycle in the macromolecular chain

M. A. Guseva, A. B. Raskina, A. V. Volokhina, G. I. Kudryavtsev, I. Ya. Kvitko, L. I. Rudaya

Journal:

Fibre Chemistry

Year:

1986

Language:

english

File:

PDF, 266 KB

english, 1986

2

Influence of the nature of the heteroatoms on the structure of the H- and Zn-chelate rings in various derivatives of five-membered heterocyclic compounds.1H and13C NMR

L. N. Kurkovskaya, N. N. Shapet'ko, I. Ya. Kvitko, L. V. Alam, E. A. Panfilova, A. V. El'tsov

Journal:

Journal of Structural Chemistry

Year:

1978

Language:

english

File:

PDF, 497 KB

english, 1978

3

C-Acylation of rhodanine derivatives

I. Ya. Kvitko, S. V. Bolkhovets, A. M. Kokurina

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 340 KB

english, 1972

4

Synthesis of derivatives of thieno[2,3-c]pyrazole and thieno[2,3-d]thiazoline

Journal:

Chemistry of Heterocyclic Compounds

Year:

1969

Language:

english

File:

PDF, 72 KB

english, 1969

5

ChemInform Abstract: Synthesis and Structure of Tridentate Ligands on the Basis of Nitrogen Derivatives of Formylpyrazolones and Their Copper Complexes.

I. YA. KVITKO, L. V. ALAM, M. N. BOBROVNIKOV, G. B. AVETIKYAN, S. L. PANASYUK

Journal:

Year:

1995

File:

PDF, 28 KB

1995

6

Sulfur- and selenium-containing merocyanine dyes

I. Ya. Kvitko, V. P. Martynova, R. P. Ponomareva, N. S. Fedorova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1975

Language:

english

File:

PDF, 192 KB

english, 1975

7

Chloroformylation of N-succinimide and synthesis of enamines — pyrrolone derivatives

I. Ya. Kvitko, E. A. Panfilova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1973

Language:

english

File:

PDF, 322 KB

english, 1973

8

Enamines of formyl derivatives of thio- and selenopyrrolone and synthesis of thieno- and selenopheno [2,3-b]pyrroles

I. Ya. Kvitko, N. B. Sokolova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1973

Language:

english

File:

PDF, 116 KB

english, 1973

9

Heterocyclic analogs of xanthone

A. S. Vitvitskaya, M. P. Noskova, I. Ya. Kvitko, L. S. Éfros

Journal:

Chemistry of Heterocyclic Compounds

Year:

1973

Language:

english

File:

PDF, 208 KB

english, 1973

10

Cycloaddition to aminomethylene derivatives of 1-phenyl-3-methylpyrazole-5-thione and 1-phenyl-3-methylpyrazole-5-selenone

G. K. Lebedeva, I. Ya. Kvitko, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1979

Language:

english

File:

PDF, 316 KB

english, 1979

11

Synthesis of 2-phenylthieno[3,2-d]oxazole and 2-phenylthieno[3,2-d]thiazole

N. Ya. Kvitko, R. V. Khozeeva, N. S. Fedorova, V. A. Smirnova, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1979

Language:

english

File:

PDF, 257 KB

english, 1979

12

Method for the preparation of isothiazole-containing two-ring systems

L. V. Alam, I. Ya. Kvitko

Journal:

Chemistry of Heterocyclic Compounds

Year:

1978

Language:

english

File:

PDF, 53 KB

english, 1978

13

Research on aminomethylene derivatives of azoles

I. Ya. Kvitko, V. A. Smirnova, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1980

Language:

english

File:

PDF, 368 KB

english, 1980

14

Synthesis of thieno[2,3-b]- and selenopheno[2,3-b] furan

I. Ya. Kvitko, N. B. Sokolova, L. S. Éfros

Journal:

Chemistry of Heterocyclic Compounds

Year:

1973

Language:

english

File:

PDF, 111 KB

english, 1973

15

Aminomethylene derivatives of azoles

I. Ya. Kvitko, L. N. Kurkovskaya, R. V. Khozeeva, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1978

Language:

english

File:

PDF, 236 KB

english, 1978

16

Heterocyclic analogs of xanthones

A. S. Sarenko, I. Ya. Kvitko, L. S. Éfros

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 432 KB

english, 1972

17

Synthesis and properties of enamine derivatives of 1-methyl-2-phenyl-5-pyrrolone and 5-thiopyrrolone

I. Ya. Kvitko, N. B. Sokolova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 226 KB

english, 1972

18

Heterocyclic analogs of xanthones

A. S. Sarenko, L. N. Poznyakova, I. Ya. Kvitko, L. S. Éfros

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 265 KB

english, 1972

19

Transformations of bicyclic systems containing an isothiazole ring

L. V. Alam, I. Ya. Kvitko, N. S. Fedorova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1985

Language:

english

File:

PDF, 303 KB

english, 1985

20

Investigation of the reaction of 1-methyl-2,5-dichloro-3,4-diformylpyrrole with amines

E. A. Panfilova, I. Ya. Kvitko, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1981

Language:

english

File:

PDF, 416 KB

english, 1981

21

Kinetics of the cycloaddition of maleic anhydride to arylaminomethylene derivatives of 3-methyl-1-phenylpyrazole-5-thione

I. Ya. Kvitko, I. I. Potanochkina, L. A. Brindza

Journal:

Chemistry of Heterocyclic Compounds

Year:

1986

Language:

english

File:

PDF, 398 KB

english, 1986

22

Research on aminomethylene derivatives of azoles XV. Synthesis and structure of aminoethylidene and aminomethylene derivatives of 5-imidazolone

I. Ya. Kvitko, R. V. Khozeeva, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1975

Language:

english

File:

PDF, 408 KB

english, 1975

23

Synthesis and transformations of chloropyrazolealdehydes

B. A. Porai-Koshits, I. Ya. Kvitko, E. A. Shutkova

Journal:

Pharmaceutical Chemistry Journal

Year:

1970

Language:

english

File:

PDF, 393 KB

english, 1970

24

Synthesis and pharmacological investigation of acyl derivatives of iminodibenzyl

V. N. Bagal, I. Ya. Kvitko, I. P. Lapin, B. A. Porai-Koshits, O. V. Favorskii

Journal:

Pharmaceutical Chemistry Journal

Year:

1967

Language:

english

File:

PDF, 349 KB

english, 1967

25

Heterocyclic analogs of xanthones chromono(3,2-d)pyrazoles

A. S. Sarenko, L. S. Éfros, I. Ya. Kvitko

Journal:

Pharmaceutical Chemistry Journal

Year:

1970

Language:

english

File:

PDF, 304 KB

english, 1970

26

Research on aminomethylene derivatives of azoles. 23. Synthesis and structure of formyl derivatives of 1-phenyl-5-hydroxy(mercapto)-imidazoles

I. Ya. Kvitko, R. V. Khozeeva, A. V. El'tsov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1979

Language:

english

File:

PDF, 411 KB

english, 1979

27

Synthesis and properties of chelate forming heterocyclic polyamides. Polyamido-benzimidazole

V.N. Kolot, G.I. Kudryavtsev, G.D. Litovchenko, I.Ya. Kvitko, A.V. Yel'tsov

Journal:

Polymer Science U.S.S.R.

Year:

1976

Language:

english

File:

PDF, 324 KB

english, 1976

28

The synthesis and properties of chelate forming heterocyclic polyamides the poly(amido)benzoxazoles

V.N. Kolot, G.I. Kudryavtsev, G.D. Litovchenko, V.G. Kravchenko, I.Ya. Kvitko

Journal:

Polymer Science U.S.S.R.

Year:

1978

Language:

english

File:

PDF, 451 KB

english, 1978

29

ChemInform Abstract: STRUCTURE AND SYNTHESIS OF AMINOMETHYLENE DERIVATIVES OF 2-PHENYL-5-THIOOXAZOLONES

KVITKO, I. YA., KHOZEEVA, R. V., FEDOROVA, N. S., FROLOVA, G. M., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1976

File:

PDF, 113 KB

1976

30

ChemInform Abstract: HETEROCYCLISCHE ANALOGE DES 3-HYDROXY-BENZO(B)THIOPHENS, SYNTHESE, TAUTOMERIE UND REAKTIONEN VON 4-HYDROXY(AMINO)-THIENO(3,2-D)PYRAZOLEN

ZAKHAROV, L. N., KVITKO, I. YA., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1974

File:

PDF, 264 KB

1974

31

ChemInform Abstract: METHOD FOR PREPARING N-ARYL(ALKYL)THIENO(SELENOPHENO)(3,2-D)IMIDAZOLES

KHOZEEVA, R. V., KVITKO, I. YA., BARANOV, E. L., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1977

File:

PDF, 121 KB

1977

32

ChemInform Abstract: ENAMINE DES 5-SELENOPYRAZINS UND SYNTH. VON SELENOPHENO(3,2-D)PYRAZOL

KOSHELEV, YU. N., KVITKO, I. YA., SAMARTSEVA, E. D.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 141 KB

1973

33

ChemInform Abstract: HETEROCYCLISCHE ANALOGA VON XANTHONEN 2. MITT. C-ACYLIERUNG VON 5-PYRAZOLONEN UND DIE SYNTH. VON CHROMONO(3,2-D)PYRAZOLEN

SARENKO, A. S., KVITKO, I. YA., EFROS, L. S.

Journal:

Chemischer Informationsdienst

Year:

1972

Language:

german

File:

PDF, 371 KB

german, 1972

34

ChemInform Abstract: HETEROCYCLISCHE ANALOGA VON XANTHONEN 3. MITT. THIOCHROMONO(3,2-D)PYRAZOLE

SARENKO, A. S., POZNYAKOVA, L. N., KVITKO, I. YA., EFROS, L. S.

Journal:

Chemischer Informationsdienst

Year:

1972

File:

PDF, 260 KB

1972

35

ChemInform Abstract: STUDY OF THE REACTION OF 1-METHYL-2,5-DICHLORO-3,4-DIFORMYLPYRROLE WITH AMINES

PANFILOVA, E. A., KVITKO, I. YA., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1982

File:

PDF, 222 KB

1982

36

ChemInform Abstract: REACTIONS OF BICYCLIC SYSTEMS CONTAINING THE ISOTHIAZOLE RING

ALAM, L. V., KVITKO, I. YA., FEDOROVA, N. S.

Journal:

Chemischer Informationsdienst

Year:

1985

File:

PDF, 125 KB

1985

37

ChemInform Abstract: STRUKTUR VON AMINONITROACROLEINEN

KVITKO, S. M., MAKSIMOV, YU. V., PAPERNO, T. YA., PEREKALIN, V. V.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 205 KB

1973

38

ChemInform Abstract: INNERMOLEKULARE NH...SE-WASSERSTOFFBINDUNG IN DERIVATEN DES PYRAZOLONS

KURKOVSKAYA, L. N., SHAPET'KO, N. N., KVITKO, I. YA., KOSHELEV, YU. N.

Journal:

Chemischer Informationsdienst

Year:

1972

File:

PDF, 115 KB

1972

39

ChemInform Abstract: ENAMINES OF 4-FORMYL-5-IMIDAZOLONE AND ITS SULFUR ANALOG

KHOZEEVA, R. V., KVITKO, I. YA., EL'TSOV, A. V., KURKOVSKAYA, L. N.

Journal:

Chemischer Informationsdienst

Year:

1977

File:

PDF, 114 KB

1977

40

ChemInform Abstract: COMPLEXES WITH ORGANIC LIGANDS. I. CHELATE COMPOUNDS OF SUBSTITUTED 2-(2-HYDROXYPHENYL)BENZOTRIAZOLES AND 2-(2-HYDROXYPHENYL)BENZIMIDAZOLES

EL'TSOV, A. V., RUDAYA, L. I., SAMARTSEVA, E. D., KVITKO, I. YA.

Journal:

Chemischer Informationsdienst

Year:

1977

File:

PDF, 134 KB

1977

41

ChemInform Abstract: SYNTHESIS AND STUDY OF BICYCLIC CONDENSED SYSTEMS CONTAINING THIOPYRYLIUM

GRIGOR'EVA, A. I., LEBEDEVA, G. K., SNEGIREVA, L. P., KVITKO, I. YA.

Journal:

Chemischer Informationsdienst

Year:

1978

File:

PDF, 218 KB

1978

42

ChemInform Abstract: STUDY OF AMINOMETHYLENE DERIVATIVES OF AZOLES. XXII. ISOMERISM OF 4-AMINOETHYLIDENE- AND 4-AMINOMETHYLENE-5-IMIDAZOLONES

KVITKO, I. YA., KURKOVSKAYA, L. N., KHOZEEVA, R. V., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1979

File:

PDF, 185 KB

1979

43

ChemInform Abstract: METHOD OF PREPARING ISOTHIAZOLE-CONTAINING BICYCLIC SYSTEMS

ALAM, L. V., KVITKO, I. YA.

Journal:

Chemischer Informationsdienst

Year:

1978

File:

PDF, 107 KB

1978

44

ChemInform Abstract: AMINOMETHYLEN-DERIVATE VON AZOLEN 15. MITT. SYNTHESE VON ARYLAMINOMETHYLEN-DERIVATEN DES PYRAZOLONS-(5), DES THIO- UND SELENOPYRAZOLONS-(5) UND UNTERSUCHUNG VON SUBSTITUENTENEINFLUESSEN AUF DIE STABILITAET DER INNERMOLEKULAREN NH...X-

KURKOVSKAYA, L. N., SHAPET'KO, N. N., SAMARTSEVA, E. D., KOSHELEV, YU. N., SOF'INA, E. M., KVITKO, I. YA.

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 215 KB

1975

45

ChemInform Abstract: STUDY OF AMINOMETHYLENE DERIVATIVES OF AZOLES. 23. SYNTHESIS AND STRUCTURE OF F FORMYL DERIVATIVES OF 1-PHENYL-5-HYDROXY(MERCAPTO)IMIDAZOLES

KVITKO, I. YA., KHOZEEVA, R. V., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1979

File:

PDF, 207 KB

1979

46

ChemInform Abstract: ELEKTROPHILE SUBSTITUTION AN THIENO- UND SELENOPHENO(3,2-D)PYRAZOLEN

KOSHELEV, YU. N., REZNICHENKO, A. V., EFROS, L. S., KVITKO, I. YA.

Journal:

Chemischer Informationsdienst

Year:

1974

File:

PDF, 118 KB

1974

47

ChemInform Abstract: SYNTHESIS AND SOME PROPERTIES OF 1-PHENYL-3-METHYL-4-(CYANOMETHYLENE)-5-PYRAZOLONE

SMIRNOVA, N. P., KVITKO, I. YA., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1985

File:

PDF, 107 KB

1985

48

ChemInform Abstract: SYNTHESIS OF A NEW TRICYCLIC SYSTEM OF BIS(THIENO)PYRROLE

PANFILOVA, E. A., KVITKO, I. YA., KUPTSOV, A. D., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1981

File:

PDF, 110 KB

1981

49

ChemInform Abstract: ENAMINE VON FORMYLDERIVATEN DES THIO- UND SELENOPYRROLONS UND DIE SYNTHESE VON THIENO- UND SELENOPHENO(2,3-B)PYRROLEN

KVITKO, I. YA., SOKOLOVA, N. V.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 206 KB

1973

50

ChemInform Abstract: STUDY OF AMINOMETHYLENE DERIVATIVES OF AZOLES. XIX. SYNTHESIS AND STRUCTURE OF NITROGENOUS DERIVATIVES OF 1-METHYL-2-CHLORO-3,4-DIFORMYL-5-PYRROLONE, ITS SULFUR AND SELENIUM ANALOGS

PANFILOVA, E. A., KVITKO, I. YA., KURKOVSKAYA, L. N., EL'TSOV, A. V.

Journal:

Chemischer Informationsdienst

Year:

1979

File:

PDF, 126 KB

1979