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I. S. Belostotskaya V. B. Vol'eva N. L. Komissarova M. O. Dekaprilevich V. N. Khrustalev A. Yu. Karmilov V. V. Ershov 《Russian Chemical Bulletin》1997,46(7):1272-1280
Oxidative transformations of 2-dialkylaminomethyl-4,6-di-tert-butylphenols depend on the nature of the oxidant, the character of the substituents at the nitrogen atom, and the medium.
A mechanism of the oxidation of these compounds is suggested. The molecular structure of the compound obtained as a result
of oxidative trimerization of 2-dimethylaminomethyl-4,6-di-tert-butylphenol was established by X-ray structural analysis.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1328–1335, July, 1997. 相似文献
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Sheverdov V. P. Davydova V. V. Nasakin O. E. Maryasov M. A. Dorovatovskii P. B. Khrustalev V. N. 《Russian Journal of General Chemistry》2019,89(3):385-390
Russian Journal of General Chemistry - The reaction of 1-(2-oxocyclohexyl)ethane-1,1,2,2-tetracarbonitrile with crotonic aldehyde, cinnamic aldehyde, 2-furylacrolein, 3-phenyl-2-propinal,... 相似文献
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R. R. Aysin L. A. Leites S. S. Bukalov V. N. Khrustalev I. V. Borisova N. N. Zemlyanskii A. Yu. Smirnov M. S. Nechaev 《Russian Chemical Bulletin》2011,60(1):69-80
Vibrational spectra of compounds of divalent Group 14 elements ElII(OCH2CH2NMe2)2 with ElII = Ge (1), Sn (2), Pb (3) and ClElIIOCH2CH2NMe2 with ElII = Ge (4) and Sn (5) were measured for the first time and analyzed within the framework of DFT calclations. Monomeric compounds 1 and 2 whose molecules are stabilized only through intramolecular coordination were confirmed to be isostructural. Unlike 1 and 2, plumbylene 3 is a polymer in both solution and the crystalline state; the latter was confirmed by X-ray diffraction analysis. The νs
C-N stretching frequency in the CH2NMe2 fragment was shown to decrease by 80–100 cm−1 owing to the formation of the coordination bond El←N. To elucidate the mechanism of a dynamic flip-flop process suggested earlier based on the broadening of some signals in the NMR spectra of compounds 1 and 4, the Raman spectra of solutions of compounds 1 and 2 in THF and Py were obtained. These experiments revealed no equilibrium with participation of a stable form with one coordination
bond El←N cleaved along with the starting molecule. This is consistent with the results of the corresponding quantum chemical
calculations of thermo-dynamic parameters. A somewhat different, more probable mechanism of the dynamic process was proposed,
which involves an overturn of the CH2NMe2 fragment with cleavage of the El←N bond in the transition state only. 相似文献
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