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    Article

    14N and15N NMR spectra of 2-substituted 5-nitrofurans

    The14N and15N NMR spectra of a number of 2-substituted 5-nitrofurans were studied. On the basis of experimental data it was concluded that there is considerable π-electron density on the nitrogen atom of the nitr...

    É. É. Liepin'sh, R. M. Zolotoyabko, Ya. P. Stradyn' in Chemistry of Heterocyclic Compounds (1980)

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    Article

    14N and15N NMR spectra of 2-substituted 5-nitrofurans

    The14N and15N NMR spectra of a number of 2-substituted 5-nitrofurans were studied. On the basis of experimental data it was concluded that there is considerable π-electron density on the nitrogen atom of the nitr...

    É. É. Liepin'sh, R. M. Zolotoyabko, Ya. P. Stradyn' in Chemistry of Heterocyclic Compounds (1980)

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    Article

    Thermochemical properties of α-nitro derivatives of furan

    1. The standard enthalpies of combustion of 14 furan derivatives (including 11 α-nitro-substituted furan derivat...

    A. A. Balepin, V. P. Lebedev in Bulletin of the Academy of Sciences of the… (1980)

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    Article

    Study of the reactivities of methyl esters of furan-2-carboxylic and thiophene-2-carboxylic acids by the method of competitive nitration

    The reactivities of methyl esters of furan-2-carboxylic and thiophene-2-carboxylic acidswere studied by the method of competitive nitration. Methyl furan-2-carboxylate is more active in its reactions with a mi...

    K. K. Venter, M. A. Trushule, V. P. Litvinov in Chemistry of Heterocyclic Compounds (1978)

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    Article

    Methanolysis and hydrolysis of derivatives of methyl 2,5- and 4,5-dihydrofuran-2-carboxylates

    Methyl 2,5-dimethoxy-2,5-dihydrofuran-2-carboxylate is formed in the reaction of HCl-CH3OH with methyl 5-nitro-2-acetoxy-2,5-, 5-nitro-4-acetoxy-4,5-, and 2,5-diacetoxy-2,5-dihydrofuran-2-carboxylates, whereas me...

    D. O. Lolya, K. K. Venter in Chemistry of Heterocyclic Compounds (1977)

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    Article

    Nitration of furan derivatives with acetyl nitrate. Investigation of the products of nitration of furfural and furfural diacetate

    It was established that 5-nitro-2-acetoxy-2,5-dihydro-, 5-nitro-4-acetoxy-4,5-dihydro-, and 5-nitrofurfural diacetates and 5-nitrofurfural are formed in the nitration of furfural and furfural diacetate in acet...

    D. O. Lolya, K. K. Venter, É. É. Liepin'sh in Chemistry of Heterocyclic Compounds (1976)

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    Article

    Synthesis of some substituted 2- and 4-[2′-(5″-nitro-2″-furyl)vinyl]-quinolines

    A series of 2- and 4-[2′-(5″-nitro-2″-furyl)vinyl]quinolines were synthesized by catalytic condensation of 5-nitrofurfural with 2- and 4-methylquinolines. 2-Methylquinoline (quinaldine) and its substituted der...

    S. A. Giller, M. Yu. Lidak, N. M. Sukhova in Chemistry of Heterocyclic Compounds (1976)

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    Article

    Nitration of furan derivatives with acetyl nitrate

    The mixture of products formed in the nitration of methyl furan-2-carboxylate in acetic anhydride was separated by means of thin-layer and column chromatography. It was found that products of cis and trans add...

    D. O. Lolya, K. K. Venter, É. É. Liepin'sh in Chemistry of Heterocyclic Compounds (1975)

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    Article

    Synthesis ofβ-(5-nitrofuryl-2)acrolein and optimization of the process for its preparation

    S. A. Giller, K. K. Venter, A. A. Lazdyn'sh in Pharmaceutical Chemistry Journal (1974)

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    Article

    Synthesis and antibiotic properties of certain nitrofurylacetylene compounds

    L. I. Vereshchagin, R. I. Katkevich, S. A. Giller in Pharmaceutical Chemistry Journal (1968)

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    Article

    Syntheses in the field of 5-nitro-2-furylpolyalkenals and 5-nitro-2-furylpolyalkenones

    A series ofΩ, Ω′-bis(5-nitro-2-furyl)poryalkenones has been synthesized by the condensation of 5-nitro-2-furylalkenones with 5-nitrofuran aldehydes in acetic acid (concentrated sulfuric acid catalyst). In the Ω, ...

    K. K. Venter, Ya. A. Eidus, D. O. Lolya in Chemistry of Heterocyclic Compounds (1968)

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    Article

    Synthesis and study of the cytotoxic properties of bis-(2-fluoroethyl)-amino- and N,N-bis-(2-chloroethyl)-hydrazine derivatives of furan

    R. Yu. Kalnberg, K. K. Venter, N. M. Sukhova in Pharmaceutical Chemistry Journal (1968)

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    Article

    Synthesis and antibacterial properties of several derivatives of 5-morpholinomethyl-3-amino-2-oxazolidone of the 5-nitrofuran series

    R. Yu. Kalnberg, K. K. Venter, B. A. Brizga in Pharmaceutical Chemistry Journal (1967)

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    Article

    Infrared absorption spectra of functional derivatives of 5-nitrofurfuryl-2-polyalkenes and intramolecular interaction

    The frequency characteristics of the vibration spectra of a number of polyalkene derivatives of 5-nitrofuran are examined. In particular, the IR spectra vibrations frequencies of the furan ring, nitro group, d...

    Ya. A. Eidus, K. K. Venter, I. V. Zuika in Chemistry of Heterocyclic Compounds (1967)

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    Article

    Synthesis of 5-nitrofuryl-2- and fury L-2-propiolic acid

    Nitration of methyl furyl-2-propiolate in acetic anhydride at -25° gives methyl 5-nitrofuryl-2-propiolate in good yield. Methods for preparing furyl-2-propiolic acid and its methyl ester are described.

    K. K. Venter, S. P. Korshunov, L. I. Vereshchagin in Chemistry of Heterocyclic Compounds (1966)

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    Article

    Synthesis in the fields of 5-nitrofuryl-2-polyalkenals and 5-nitrofuryl-2-polyalkenones. VII. Synthesis and investigation of the antibacterial properties of derivatives of α,β-unsaturated and polyene aldehydes and ketones of the 5-nitrofuran series

    Antibacterial properties and toxicities were determined for 66 compounds of the 5-nitrofuran type to ascertain the connection between structure and biological activity.

    S. A. Giller, S. P. Zaeva, K. K. Venter in Chemistry of Heterocyclic Compounds (1965)