Výsledky vyhledávání - "I. V. Persianova"

Alkylation and some physicoc hemical characteristics of 6,7- and 7,8- dihydroxycoumarins

Autor: V. A. Zagorevskii, D. A. Zykov, Z. D. Kirsanova, I. V. Persianova

Publikováno v: Chemistry of Heterocyclic Compounds. 10:1023-1028

The lower selectivity of the methylation of 4-methyl-7,8-dihydroxycoumarin as compared with the methylation of 6,7-dihydroxycoumarins is explained by means of the pKa values and data from the PMR and IR spectra by the slight difference in the acidity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6be23d07ebd30ae163539e1fd58bec8
https://doi.org/10.1007/bf00472114

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Synthesis and some transformations of 2,6-diphenyl-4-hydroxybenzofuran

Autor: T. F. Vlasova, G. Ya. Uretskaya, A. N. Grinev, V. M. Lyubchanskaya, I. V. Persianova

Publikováno v: Chemistry of Heterocyclic Compounds. 11:783-786

A 4-oxotetrahydrobenzofuran derivative was obtained from 5-phenylcyclohexane-1,3-dione and phenacyl bromide, and dehydrogenation of the latter gave 2,6-diphenyl-4-hydroxybenzofuran. Some reactions of 2,6-diphenyl-4-hydroxybenzofuran and its derivativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37a6a1ebc3416340d1bd53d5d791c50d
https://doi.org/10.1007/bf00497293

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Lactam acetals

Autor: I. V. Persianova, Vladimir G. Granik, Yu. N. Sheinker

Publikováno v: Chemistry of Heterocyclic Compounds. 10:336-339

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4a5b3260854ce57e4fba1802ea34a54
https://doi.org/10.1007/bf00472425

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Acetals of lactams and acid amides. 39. Synthesis of three-ring derivatives of pyrido [l,2-a] pyrimidines on the basis of the reaction of dimethylformamide acetal with dicyanomethylenecycloalkanes

Autor: V. G. Klimenko, N. A. Mukhina, V. G. Granik, N. I. Smetskaya, I. V. Persianova

Publikováno v: Chemistry of Heterocyclic Compounds. 19:1027-1030

The reaction of dicyanomethylenecyclopentane and -cyclohexane with dimethylformamide diethylacetal was used to synthesize dieneamino nitriles, from which isoquinoline and 2-pyridine derivatives were obtained by treatment with ammonia. The reaction of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c623d35a984813b64afbc420b687a0ad
https://doi.org/10.1007/bf00506895

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Indole derivatives. 131. The basicity of 5- and 6-aminoindoles

Autor: N. N. Suvorov, L. N. Kurkovskaya, I. V. Persianova, L. S. Krasavina, M. M. Vigdorchik, M. A. Salekh

Publikováno v: Chemistry of Heterocyclic Compounds. 24:624-627

The pKa values for the 5- and 6-aminoindoles were determined from potentiometric titration curves and from 13C NMR data on the total change of the chemical shifts of the carbon atom signals on protonation of the amino group. The pKa values obtained (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3eb6e42f773799f57cf4b798faf85b70
https://doi.org/10.1007/bf00475595

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Acetals of lactams and acid amides. 36. Some reactions of enamines of the isoquinoline series and synthesis of pyrimido[4,3-a]isoquinolines

Autor: V. G. Granik, V. F. Knyazeva, N. P. Solov'eva, I. V. Persianova, R. G. Glushkov

Publikováno v: Chemistry of Heterocyclic Compounds. 18:838-842

The reactions of 1-methylene-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline derivatives with acyl chlorides were investigated. 2-Oxopyrimido[4,3-a]isoquinoline derivatives were obtained by the reaction of 1-carbamidomethylene-6,7-dimethoxy-1,2, 3,4-tet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c54f1e14611f43231ebf2ded85e22f2b
https://doi.org/10.1007/bf00506592

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