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  1. No Access

    Article

    Synthesis, hypolipidemic and antifungal activity of tetrahydroberberrubine sulfonates

    The paper describes the synthesis of new tetrahydroberberrubine derivatives containing polyfl uorophenyl- or alkylsulfonate groups at the O(9) position as well as those containing or not containing a bromine a...

    I. V. Nechepurenko, E. D. Shirokova, M. V. Khvostov… in Russian Chemical Bulletin (2019)

  2. No Access

    Article

    Base-catalyzed heterocyclization of 2-(R-ethynyl)benzohydroxamic acids

    Sonogashira alkynylation of methyl 2-iodobenzoate with terminal acetylenes gave a series of methyl 2-(alk-1-yn-1-yl)benzoates which reacted with hydroxylamine in boiling methanol to produce five- or six-membered

    S. F. Vasilevskii, T. F. Mikhailovskaya… in Russian Journal of Organic Chemistry (2014)

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    Article

    Non-empirical and DFT calculations of 19F and 13C chemical shifts in the NMR spectra of substituted pentafluorobenzenes

    Chemical shifts in 19F and 13C NMR spectra of substituted pentafluorobenzenes are calculated by Hartree-Fock and density functional theory methods. The calculated values are compared with the experimental data kn...

    D. S. Fadeev, I. P. Chuikov, V. I. Mamatyuk in Journal of Structural Chemistry (2013)

  4. No Access

    Article

    Dual reactivity of diazonium salts derived from 1-amino-2-ethynyl-9,10-anthraquinones

    Diazotization of vicinal 1-amino-2-ethynyl-4-R-9,10-anthraquinones followed by a reaction with NaN3 gave 5-hydroxy-3-R-1H-naphtho[2,3-g]indazole-6,11-diones or 3-ethynyl-5-R-6H-anthra[1,9-cd]isoxazol-6-ones, depe...

    S. F. Vasilevsky, A. A. Stepanov, D. S. Fadeev in Russian Chemical Bulletin (2012)